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Environmental Treaties and Resource Indicators (ENTRI) -- Full Text File


For information about a related document, see Agreement Relating to the Implementation of Part XI of the 1982 United Nations Convention on the Law of the Sea 28 July 1994.

Summary of the "United Nations Convention on the Law of the Sea" is available from the UNEP Register of International Treaties and Other Agreements in the Field of the Environment.

See the ENTRI query system for information about the status of this treaty.


See the ENTRI thematic guide for more information about the relationships between environmental treaties, national resource indicators, and remotely sensed data.
8. UNITED NATIONS CONVENTION ON THE LAW OF THE SEA

(Montego Bay, 10 December 1982)

The States Parties to this Convention, (...) Recognizing 
the desirability of establishing through this 
Convention, with due regard for the sovereignty of all 
States, a legal order for the seas and oceans which will 
facilitate international communication, and will promote 
the peaceful uses of the seas and oceans, the equitable 
and efficient utilization of their resources, the 
conservation of their living resources, and the study, 
protection and preservation of the marine environment, 
(...)

PART I

INTRODUCTION

Article 1

Use of terms and scope

1. For the purposes of this Convention:

(1) "Area" means the sea-bed and ocean floor and subsoil 
thereof, beyonds the limits of national jurisdiction;
(...)

(4) "pollution of the marine environment" means the 
introduction by man, directly or indirectly, of 
substances or energy into the marine environment, 
including estuaries, which results or is likely to 
result in such deleterious effects as harm to living 
resources and marine life, hazards to human health, 
hindrance to marine activities, including fishing and 
other legitimate uses of the sea, impairment of quality 
for use of sea water and reduction of amenities;

(5) (a) "dumping" means:

(i) any deliberate disposal of wastes or other matter 
from vessels, aircraft, platforms or other man-made 
structures at sea;

(ii) any deliberate disposal of vessels, aircraft, 
platforms or other man-made structures at sea;

(b) "dumping" does not include:

(i) the disposal of wastes or other matter incidental 
to, or derived from the normal operations of vessels, 
aircraft, platforms or other man-made structures at sea 
and their equipment, other than wastes or other matter 
transported by or to vessels, aircraft, platforms or 
other man-made structures at sea, operating for the 
purpose of disposal of such matter or derived from the 
treatment of such wastes or other matter on such 
vessels, aircraft, platforms or structures;

(ii) placement of matter for a purpose other than the 
mere disposal thereof, provided that such placement is 
not contrary to the aims of this Convention.
(...)

PART II

TERRITORIAL SEA AND CONTIGUOUS ZONE

SECTION 3. INNOCENT PASSAGE IN THE TERRITORIAL SEA

Article 19

Meaning of innocent passage

(...)

2. Passage of a foreign ship shall be considered to be 
prej

United Nations Convention on the Law of the Sea




This data access service is provided by the Center for International Earth Science Information Network (CIESIN), which operates the Socioeconomic Data and Applications Center (SEDAC) for the U.S. National Aeronautics and Space Administration (NASA).
Service Providers

Environmental Treaties and Resource Indicators (ENTRI) -- Full Text File


For information about a related document, see Agreement Relating to the Implementation of Part XI of the 1982 United Nations Convention on the Law of the Sea 28 July 1994.

Summary of the "United Nations Convention on the Law of the Sea" is available from the UNEP Register of International Treaties and Other Agreements in the Field of the Environment.

See the ENTRI query system for information about the status of this treaty.


See the ENTRI thematic guide for more information about the relationships between environmental treaties, national resource indicators, and remotely sensed data.
8. UNITED NATIONS CONVENTION ON THE LAW OF THE SEA

(Montego Bay, 10 December 1982)

The States Parties to this Convention, (...) Recognizing 
the desirability of establishing through this 
Convention, with due regard for the sovereignty of all 
States, a legal order for the seas and oceans which will 
facilitate international communication, and will promote 
the peaceful uses of the seas and oceans, the equitable 
and efficient utilization of their resources, the 
conservation of their living resources, and the study, 
protection and preservation of the marine environment, 
(...)

PART I

INTRODUCTION

Article 1

Use of terms and scope

1. For the purposes of this Convention:

(1) "Area" means the sea-bed and ocean floor and subsoil 
thereof, beyonds the limits of national jurisdiction;
(...)

(4) "pollution of the marine environment" means the 
introduction by man, directly or indirectly, of 
substances or energy into the marine environment, 
including estuaries, which results or is likely to 
result in such deleterious effects as harm to living 
resources and marine life, hazards to human health, 
hindrance to marine activities, including fishing and 
other legitimate uses of the sea, impairment of quality 
for use of sea water and reduction of amenities;

(5) (a) "dumping" means:

(i) any deliberate disposal of wastes or other matter 
from vessels, aircraft, platforms or other man-made 
structures at sea;

(ii) any deliberate disposal of vessels, aircraft, 
platforms or other man-made structures at sea;

(b) "dumping" does not include:

(i) the disposal of wastes or other matter incidental 
to, or derived from the normal operations of vessels, 
aircraft, platforms or other man-made structures at sea 
and their equipment, other than wastes or other matter 
transported by or to vessels, aircraft, platforms or 
other man-made structures at sea, operating for the 
purpose of disposal of such matter or derived from the 
treatment of such wastes or other matter on such 
vessels, aircraft, platforms or structures;

(ii) placement of matter for a purpose other than the 
mere disposal thereof, provided that such placement is 
not contrary to the aims of this Convention.
(...)

PART II

TERRITORIAL SEA AND CONTIGUOUS ZONE

SECTION 3. INNOCENT PASSAGE IN THE TERRITORIAL SEA

Article 19

Meaning of innocent passage

(...)

2. Passage of a foreign ship shall be considered to be 
prejudicial to the peace, good order or security of the 
coastal State if in the territorial seas it engages in 
any of the following activities: (...)

(h)any act of wilful and serious pollution contrary to 
this Convention; (...)

Article 21

Laws and regulations of the coastal State relating to 
innocent passage

1. The coastal State may adopt laws and regulations, in 
conformity with the provisions of this Convention and 
other rules of international law, relating to innocent 
passage through the territorial sea, in respect of all 
or any of the following:

(...)

(f) the preservation of the environment of the coastal 
State and the prevention, reduction and control of 
pollution thereof; (...)

Article 22

Sea lanes and traffic separation schemes in the 
territorial sea

1. The coastal State may, where necessary having regard 
to the safety of navigation, require foreign ships 
exercising the right of innocent passage through its 
territorial sea to use such sea lanes and traffic 
separation schemes as it may designate or prescribe for 
the regulation of the passage of ships.

2. In particular, tankers, nuclear-powered ships and 
ships carrying nuclear or other inherently dangerous or 
noxious substances or materials may be required to 
confine their passage to such sea lanes.

(...)

Article 23

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances 
shall, when exercising the right of innocent passage 
through the territorial sea, carry documents and observe 
special precautionary measures established for such 
ships by international agreements.

(...)

PART III

STRAITS USED FOR INTERNATIONAL NAVIGATION

SECTION 2. TRANSIT PASSAGE

Article 39

Duties of ships and aircraft during transit passage

(...)

2. Ships in transit passage shall:

(...)

(b) comply with generally accepted international 
regulations, procedures and practices for the 
prevention, reduction and control of pollution from 
ships. (...)

Article 42

Laws and regulations of States bordering straits 
relating to transit passage

1. Subject to the provisions of this section, States 
bordering straits may adopt laws and regulations 
relating to transit passage through straits, in respect 
of all or any of the following:

(...)

(b) the prevention, reduction and control of pollution, 
by giving effect to applicable international regulations 
regarding the discharge of oil, oily wastes and other 
noxious substances in the straits;

(...)

Article 43

Navigational and safety aids and other improvements and 
the prevention, reduction and control of pollution

User States and States bordering a strait should by 
agreement co-operate:

(...)

(b) for the prevention, reduction and control of 
pollution from ships.

PART IV

ARCHIPELAGIC STATES

Article 54

Duties of ships and aircraft during their passage, 
research and survey activities, duties of the 
archipelagic State and laws and regulations of the 
archipelagic State relating to archipelagic sea lanes 
passage Articles 39, 40, 42 and 44 apply mutatis 
mutandis to archipelagic sea lanes passage.

PART V

EXCLUSIVE ECONOMIC ZONE

Article 56

Rights, jurisdiction and duties of the coastal State in 
the exclusive economic zone 

1. In the exclusive economic zone, the coastal State 
has:

(...)

(b) jurisdiction as provided for in the relevant 
provisions of this Convention with regard to:

(...)

(iii) the protection and preservation of the marine 
environment; (...)

Article 60

Artificial islands, installations and structures in the 
exclusive economic zone

(...)

3. Due notice must be given of the construction of such 
artificial islands, installations or structures, and 
permanent means for giving warning of their presence 
must be maintained. Any installations or structures 
which are abandoned or disused shall be removed to 
ensure safety of navigation, taking into account any 
generally accepted international standards established 
in th

United Nations Convention on the Law of the Sea




This data access service is provided by the Center for International Earth Science Information Network (CIESIN), which operates the Socioeconomic Data and Applications Center (SEDAC) for the U.S. National Aeronautics and Space Administration (NASA).
Service Providers

Environmental Treaties and Resource Indicators (ENTRI) -- Full Text File


For information about a related document, see Agreement Relating to the Implementation of Part XI of the 1982 United Nations Convention on the Law of the Sea 28 July 1994.

Summary of the "United Nations Convention on the Law of the Sea" is available from the UNEP Register of International Treaties and Other Agreements in the Field of the Environment.

See the ENTRI query system for information about the status of this treaty.


See the ENTRI thematic guide for more information about the relationships between environmental treaties, national resource indicators, and remotely sensed data.
8. UNITED NATIONS CONVENTION ON THE LAW OF THE SEA

(Montego Bay, 10 December 1982)

The States Parties to this Convention, (...) Recognizing 
the desirability of establishing through this 
Convention, with due regard for the sovereignty of all 
States, a legal order for the seas and oceans which will 
facilitate international communication, and will promote 
the peaceful uses of the seas and oceans, the equitable 
and efficient utilization of their resources, the 
conservation of their living resources, and the study, 
protection and preservation of the marine environment, 
(...)

PART I

INTRODUCTION

Article 1

Use of terms and scope

1. For the purposes of this Convention:

(1) "Area" means the sea-bed and ocean floor and subsoil 
thereof, beyonds the limits of national jurisdiction;
(...)

(4) "pollution of the marine environment" means the 
introduction by man, directly or indirectly, of 
substances or energy into the marine environment, 
including estuaries, which results or is likely to 
result in such deleterious effects as harm to living 
resources and marine life, hazards to human health, 
hindrance to marine activities, including fishing and 
other legitimate uses of the sea, impairment of quality 
for use of sea water and reduction of amenities;

(5) (a) "dumping" means:

(i) any deliberate disposal of wastes or other matter 
from vessels, aircraft, platforms or other man-made 
structures at sea;

(ii) any deliberate disposal of vessels, aircraft, 
platforms or other man-made structures at sea;

(b) "dumping" does not include:

(i) the disposal of wastes or other matter incidental 
to, or derived from the normal operations of vessels, 
aircraft, platforms or other man-made structures at sea 
and their equipment, other than wastes or other matter 
transported by or to vessels, aircraft, platforms or 
other man-made structures at sea, operating for the 
purpose of disposal of such matter or derived from the 
treatment of such wastes or other matter on such 
vessels, aircraft, platforms or structures;

(ii) placement of matter for a purpose other than the 
mere disposal thereof, provided that such placement is 
not contrary to the aims of this Convention.
(...)

PART II

TERRITORIAL SEA AND CONTIGUOUS ZONE

SECTION 3. INNOCENT PASSAGE IN THE TERRITORIAL SEA

Article 19

Meaning of innocent passage

(...)

2. Passage of a foreign ship shall be considered to be 
prejudicial to the peace, good order or security of the 
coastal State if in the territorial seas it engages in 
any of the following activities: (...)

(h)any act of wilful and serious pollution contrary to 
this Convention; (...)

Article 21

Laws and regulations of the coastal State relating to 
innocent passage

1. The coastal State may adopt laws and regulations, in 
conformity with the provisions of this Convention and 
other rules of international law, relating to innocent 
passage through the territorial sea, in respect of all 
or any of the following:

(...)

(f) the preservation of the environment of the coastal 
State and the prevention, reduction and control of 
pollution thereof; (...)

Article 22

Sea lanes and traffic separation schemes in the 
territorial sea

1. The coastal State may, where necessary having regard 
to the safety of navigation, require foreign ships 
exercising the right of innocent passage through its 
territorial sea to use such sea lanes and traffic 
separation schemes as it may designate or prescribe for 
the regulation of the passage of ships.

2. In particular, tankers, nuclear-powered ships and 
ships carrying nuclear or other inherently dangerous or 
noxious substances or materials may be required to 
confine their passage to such sea lanes.

(...)

Article 23

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances 
shall, when exercising the right of innocent passage 
through the territorial sea, carry documents and observe 
special precautionary measures established for such 
ships by international agreements.

(...)

PART III

STRAITS USED FOR INTERNATIONAL NAVIGATION

SECTION 2. TRANSIT PASSAGE

Article 39

Duties of ships and aircraft during transit passage

(...)

2. Ships in transit passage shall:

(...)

(b) comply with generally accepted international 
regulations, procedures and practices for the 
prevention, reduction and control of pollution from 
ships. (...)

Article 42

Laws and regulations of States bordering straits 
relating to transit passage

1. Subject to the provisions of this section, States 
bordering straits may adopt laws and regulations 
relating to transit passage through straits, in respect 
of all or any of the following:

(...)

(b) the prevention, reduction and control of pollution, 
by giving effect to applicable international regulations 
regarding the discharge of oil, oily wastes and other 
noxious substances in the straits;

(...)

Article 43

Navigational and safety aids and other improvements and 
the prevention, reduction and control of pollution

User States and States bordering a strait should by 
agreement co-operate:

(...)

(b) for the prevention, reduction and control of 
pollution from ships.

PART IV

ARCHIPELAGIC STATES

Article 54

Duties of ships and aircraft during their passage, 
research and survey activities, duties of the 
archipelagic State and laws and regulations of the 
archipelagic State relating to archipelagic sea lanes 
passage Articles 39, 40, 42 and 44 apply mutatis 
mutandis to archipelagic sea lanes passage.

PART V

EXCLUSIVE ECONOMIC ZONE

Article 56

Rights, jurisdiction and duties of the coastal State in 
the exclusive economic zone 

1. In the exclusive economic zone, the coastal State 
has:

(...)

(b) jurisdiction as provided for in the relevant 
provisions of this Convention with regard to:

(...)

(iii) the protection and preservation of the marine 
environment; (...)

Article 60

Artificial islands, installations and structures in the 
exclusive economic zone

(...)

3. Due notice must be given of the construction of such 
artificial islands, installations or structures, and 
permanent means for giving warning of their presence 
must be maintained. Any installations or structures 
which are abandoned or disused shall be removed to 
ensure safety of navigation, taking into account any 
generally accepted international standards established 
in this regard by the competent international 
organization. Such removal shall also have due regard to 
fishing, the protection of the marine environment and 
the rights and duties of other States. Appropriate 
publicity shall be given to the depth, position and 
dimensions of any installations or structures not 
entirely removed.

(...)

Article 65

Marine mammals

Nothing in this Part restricts the right of a coastal 
State or the competence of an international 
organization, as appropriate, to prohibit, limit or 
regulate the exploitation of marine mammals more 
strictly than provided for in this Part. States shall 
co-operate with a view to the conservation of marine 
mammals and in the case of cetaceans shall in particular 
work through the appropriate international organizations 
for their conservation, management and study.

PART VI

CONTINENTAL SHELF

Article 79

Submarine cables and pipelines on the continental shelf

(...)

2. Subject to its right to take reasonable measures for 
the exploration of the continental shelf, the 
exploitation of its natural resources and the 
prevention, reduction and control of pollution from 
pipelines, the coastal State may not impede the laying 
or maintenance of such cables or pipelines.

(...)

Article 80

Artificial islands, installations and structures on the 
continental shelf

Article 60 applies mutatis mutandis to artificial 
islands, installations and structures on the continental 
shelf.

PART VII

HIGH SEAS

SECTION 1. GENERAL PROVISIONS

Article 94

Duties of the flag State

(...)

7. Each State shall cause an inquiry to be held by or 
before a suitably qualified person or persons into every 
marine casualty or incident of navigation on the high 
seas involving a ship flying its flag and causing loss 
of life or serious injury to nationals of another state 
or serious damage to ships or installations of another 
State or to the marine environment. The flag State and 
the other State shall co-operate in the conduct of any 
inquiry held by that other State into any such marine 
casualty or incident of navigation.

SECTION 2. CONSERVATION AND MANAGEMENT OF THE LIVING 
RESOURCES OF THE HIGH SEAS

Article 120

Marine mammals

Article 65 also applies to the conservation and 
management of marine mammals in the high seas.


PART IX ENCLOSED OR SEMI-ENCLOSED SEAS

Article 123

Co-operation of States bordering enclosed or semi-
enclosed seas

States bordering an enclosed or semi-enclosed sea should 
co-operate with each other in the exercise of their 
rights and in the performance of their duties under this 
Convention. To this end they shall endeavour, directly 
or through an appropriate regional organization:

(...)

(b) to co-ordinate the implementation of their rights 
and duties with respect to the protection and 
preservation of the marine environment;

(...)


PART XI

THE AREA

SECTION 2. PRINCIPLES GOVERNING THE AREA

Article 142

Rights and legitimate interests of coastal States

(...)

3. Neither this Part nor any rights granted or exercised 
pursuant thereto shall affect the rights of coastal 
States to take such measures consistent with the 
relevant provisions of Part XII as may be necessary to 
prevent, mitigate or eliminate grave and imminent danger 
to their coastline, or related interests from pollution 
or threat thereof or from other hazardous occurrences 
resulting from or caused by any activities in the Area.


Article 145

Protection of the marine environment

Necessary measures shall be taken in accordance with 
this Convention with respect to activities in the Area 
to ensure effective protection for the marine 
environment from harmful effects which may arise from 
such activities. To this end the Authority shall adopt 
appropriate rules, regulations and procedures for inter 
alia:

(a) the prevention, reduction and control of pollution 
and other hazards to the marine environment, including 
the coastline, and of interference with the ecological 
balance of the marine environment, particular attention 
being paid to the need for protection from harmful 

United Nations Convention on the Law of the Sea




This data access service is provided by the Center for International Earth Science Information Network (CIESIN), which operates the Socioeconomic Data and Applications Center (SEDAC) for the U.S. National Aeronautics and Space Administration (NASA).
Service Providers

Environmental Treaties and Resource Indicators (ENTRI) -- Full Text File


For information about a related document, see Agreement Relating to the Implementation of Part XI of the 1982 United Nations Convention on the Law of the Sea 28 July 1994.

Summary of the "United Nations Convention on the Law of the Sea" is available from the UNEP Register of International Treaties and Other Agreements in the Field of the Environment.

See the ENTRI query system for information about the status of this treaty.


See the ENTRI thematic guide for more information about the relationships between environmental treaties, national resource indicators, and remotely sensed data.
8. UNITED NATIONS CONVENTION ON THE LAW OF THE SEA

(Montego Bay, 10 December 1982)

The States Parties to this Convention, (...) Recognizing 
the desirability of establishing through this 
Convention, with due regard for the sovereignty of all 
States, a legal order for the seas and oceans which will 
facilitate international communication, and will promote 
the peaceful uses of the seas and oceans, the equitable 
and efficient utilization of their resources, the 
conservation of their living resources, and the study, 
protection and preservation of the marine environment, 
(...)

PART I

INTRODUCTION

Article 1

Use of terms and scope

1. For the purposes of this Convention:

(1) "Area" means the sea-bed and ocean floor and subsoil 
thereof, beyonds the limits of national jurisdiction;
(...)

(4) "pollution of the marine environment" means the 
introduction by man, directly or indirectly, of 
substances or energy into the marine environment, 
including estuaries, which results or is likely to 
result in such deleterious effects as harm to living 
resources and marine life, hazards to human health, 
hindrance to marine activities, including fishing and 
other legitimate uses of the sea, impairment of quality 
for use of sea water and reduction of amenities;

(5) (a) "dumping" means:

(i) any deliberate disposal of wastes or other matter 
from vessels, aircraft, platforms or other man-made 
structures at sea;

(ii) any deliberate disposal of vessels, aircraft, 
platforms or other man-made structures at sea;

(b) "dumping" does not include:

(i) the disposal of wastes or other matter incidental 
to, or derived from the normal operations of vessels, 
aircraft, platforms or other man-made structures at sea 
and their equipment, other than wastes or other matter 
transported by or to vessels, aircraft, platforms or 
other man-made structures at sea, operating for the 
purpose of disposal of such matter or derived from the 
treatment of such wastes or other matter on such 
vessels, aircraft, platforms or structures;

(ii) placement of matter for a purpose other than the 
mere disposal thereof, provided that such placement is 
not contrary to the aims of this Convention.
(...)

PART II

TERRITORIAL SEA AND CONTIGUOUS ZONE

SECTION 3. INNOCENT PASSAGE IN THE TERRITORIAL SEA

Article 19

Meaning of innocent passage

(...)

2. Passage of a foreign ship shall be considered to be 
prejudicial to the peace, good order or security of the 
coastal State if in the territorial seas it engages in 
any of the following activities: (...)

(h)any act of wilful and serious pollution contrary to 
this Convention; (...)

Article 21

Laws and regulations of the coastal State relating to 
innocent passage

1. The coastal State may adopt laws and regulations, in 
conformity with the provisions of this Convention and 
other rules of international law, relating to innocent 
passage through the territorial sea, in respect of all 
or any of the following:

(...)

(f) the preservation of the environment of the coastal 
State and the prevention, reduction and control of 
pollution thereof; (...)

Article 22

Sea lanes and traffic separation schemes in the 
territorial sea

1. The coastal State may, where necessary having regard 
to the safety of navigation, require foreign ships 
exercising the right of innocent passage through its 
territorial sea to use such sea lanes and traffic 
separation schemes as it may designate or prescribe for 
the regulation of the passage of ships.

2. In particular, tankers, nuclear-powered ships and 
ships carrying nuclear or other inherently dangerous or 
noxious substances or materials may be required to 
confine their passage to such sea lanes.

(...)

Article 23

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances 
shall, when exercising the right of innocent passage 
through the territorial sea, carry documents and observe 
special precautionary measures established for such 
ships by international agreements.

(...)

PART III

STRAITS USED FOR INTERNATIONAL NAVIGATION

SECTION 2. TRANSIT PASSAGE

Article 39

Duties of ships and aircraft during transit passage

(...)

2. Ships in transit passage shall:

(...)

(b) comply with generally accepted international 
regulations, procedures and practices for the 
prevention, reduction and control of pollution from 
ships. (...)

Article 42

Laws and regulations of States bordering straits 
relating to transit passage

1. Subject to the provisions of this section, States 
bordering straits may adopt laws and regulations 
relating to transit passage through straits, in respect 
of all or any of the following:

(...)

(b) the prevention, reduction and control of pollution, 
by giving effect to applicable international regulations 
regarding the discharge of oil, oily wastes and other 
noxious substances in the straits;

(...)

Article 43

Navigational and safety aids and other improvements and 
the prevention, reduction and control of pollution

User States and States bordering a strait should by 
agreement co-operate:

(...)

(b) for the prevention, reduction and control of 
pollution from ships.

PART IV

ARCHIPELAGIC STATES

Article 54

Duties of ships and aircraft during their passage, 
research and survey activities, duties of the 
archipelagic State and laws and regulations of the 
archipelagic State relating to archipelagic sea lanes 
passage Articles 39, 40, 42 and 44 apply mutatis 
mutandis to archipelagic sea lanes passage.

PART V

EXCLUSIVE ECONOMIC ZONE

Article 56

Rights, jurisdiction and duties of the coastal State in 
the exclusive economic zone 

1. In the exclusive economic zone, the coastal State 
has:

(...)

(b) jurisdiction as provided for in the relevant 
provisions of this Convention with regard to:

(...)

(iii) the protection and preservation of the marine 
environment; (...)

Article 60

Artificial islands, installations and structures in the 
exclusive economic zone

(...)

3. Due notice must be given of the construction of such 
artificial islands, installations or structures, and 
permanent means for giving warning of their presence 
must be maintained. Any installations or structures 
which are abandoned or disused shall be removed to 
ensure safety of navigation, taking into account any 
generally accepted international standards established 
in this regard by the competent international 
organization. Such removal shall also have due regard to 
fishing, the protection of the marine environment and 
the rights and duties of other States. Appropriate 
publicity shall be given to the depth, position and 
dimensions of any installations or structures not 
entirely removed.

(...)

Article 65

Marine mammals

Nothing in this Part restricts the right of a coastal 
State or the competence of an international 
organization, as appropriate, to prohibit, limit or 
regulate the exploitation of marine mammals more 
strictly than provided for in this Part. States shall 
co-operate with a view to the conservation of marine 
mammals and in the case of cetaceans shall in particular 
work through the appropriate international organizations 
for their conservation, management and study.

PART VI

CONTINENTAL SHELF

Article 79

Submarine cables and pipelines on the continental shelf

(...)

2. Subject to its right to take reasonable measures for 
the exploration of the continental shelf, the 
exploitation of its natural resources and the 
prevention, reduction and control of pollution from 
pipelines, the coastal State may not impede the laying 
or maintenance of such cables or pipelines.

(...)

Article 80

Artificial islands, installations and structures on the 
continental shelf

Article 60 applies mutatis mutandis to artificial 
islands, installations and structures on the continental 
shelf.

PART VII

HIGH SEAS

SECTION 1. GENERAL PROVISIONS

Article 94

Duties of the flag State

(...)

7. Each State shall cause an inquiry to be held by or 
before a suitably qualified person or persons into every 
marine casualty or incident of navigation on the high 
seas involving a ship flying its flag and causing loss 
of life or serious injury to nationals of another state 
or serious damage to ships or installations of another 
State or to the marine environment. The flag State and 
the other State shall co-operate in the conduct of any 
inquiry held by that other State into any such marine 
casualty or incident of navigation.

SECTION 2. CONSERVATION AND MANAGEMENT OF THE LIVING 
RESOURCES OF THE HIGH SEAS

Article 120

Marine mammals

Article 65 also applies to the conservation and 
management of marine mammals in the high seas.


PART IX ENCLOSED OR SEMI-ENCLOSED SEAS

Article 123

Co-operation of States bordering enclosed or semi-
enclosed seas

States bordering an enclosed or semi-enclosed sea should 
co-operate with each other in the exercise of their 
rights and in the performance of their duties under this 
Convention. To this end they shall endeavour, directly 
or through an appropriate regional organization:

(...)

(b) to co-ordinate the implementation of their rights 
and duties with respect to the protection and 
preservation of the marine environment;

(...)


PART XI

THE AREA

SECTION 2. PRINCIPLES GOVERNING THE AREA

Article 142

Rights and legitimate interests of coastal States

(...)

3. Neither this Part nor any rights granted or exercised 
pursuant thereto shall affect the rights of coastal 
States to take such measures consistent with the 
relevant provisions of Part XII as may be necessary to 
prevent, mitigate or eliminate grave and imminent danger 
to their coastline, or related interests from pollution 
or threat thereof or from other hazardous occurrences 
resulting from or caused by any activities in the Area.


Article 145

Protection of the marine environment

Necessary measures shall be taken in accordance with 
this Convention with respect to activities in the Area 
to ensure effective protection for the marine 
environment from harmful effects which may arise from 
such activities. To this end the Authority shall adopt 
appropriate rules, regulations and procedures for inter 
alia:

(a) the prevention, reduction and control of pollution 
and other hazards to the marine environment, including 
the coastline, and of interference with the ecological 
balance of the marine environment, particular attention 
being paid to the need for protection from harmful 
effects of such activities as drilling, dredging, 
excavation, disposal of waste, construction and 
operation or maintenance of installations, pipelines and 
other devices related to such activities;

(b) the protection and conservation of the natural 
resources of the Area and the prevention of damage to 
the flora and fauna of the marine environment.

SECTION 4. THE AUTHORITY

SUBSECTION C. THE COUNCIL

Article 162

Powers and functions

(...)

2. In addition, the Council shall:

(...)

(w) issue emergency orders, which may include orders for 
the suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area;

(x) disapprove areas for exploitation by contractors or 
the Enterprise in cases where substantial evidence 
indicates the risk of serious harm to the marine 
environment;

(...)

Article 165

The Legal and Technical Commission

1. Members of the Legal and Technical Commission shall 
have appropriate qualifications such as those relevant 
to exploration for and exploitation and processing of 
mineral resources, oceanology, protection of the marine 
environment, or economic or legal matters relating to 
ocean mining and related fields of expertise. The 
Council shall endeavour to ensure that the membership of 
the Commission reflects all appropriate qualifications.

2. The Commission shall:

(...)

(e) make recommendations to the Council on the 
protection of the marine environment, taking into 
account the views of recognized experts in that field;

(f) formulate and submit to the Council the rules, 
regulations and procedures referred to in article 162, 
paragraph 2(o), taking into account all relevant factors 
including assessments of the environmental implications 
of activities in the Area;

(...)

(h) make recommendations to the Council regarding the 
establishment of a monitoring programme to observe, 
measure, evaluate and analyse, by recognized scientific 
methods, on a regular basis, the risks or effects of 
pollution of the marine environment resulting from 
activities in the Area, ensure that existing regulations 
are adequate and are complied with and co-ordinate the 
implementation of the monitoring programme approved by 
the Council;

(...)

(k) make recommendations to the Council to issue 
emergency orders, which may include orders for the 
suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area. Such recommendations shall be 
taken up by the Council on a priority basis;

(l) make recommendations to the Council to disapprove 
areas for exploitation by contractors or the Enterprise 
in cases where substantial evidence indicates the risk 
of serious harm to the marine environment;

(...)

PART XII

PROTECTION AND PRESERVATION OF THE MARINE ENVIRONMENT
SECTION 1. GENERAL PROVISIONS

Article 192

General obligation

States have the obligation to protect and preserve the 
marine environment.

Article 193

Sovereign right of States to exploit their natural 
resources

States have the sovereign right to exploit their natural 
resources pursuant to their environmental policies and 
in accordance with their duty to protect and preserve 
the marine environment.

Article 194

Measures to prevent, reduce and control pollution of the 
marine environment

1. States shall take, individually or jointly as 
appropriate, all measures consistent with this 
Convention that are necessary to prevent, reduce and 
control pollution of the marine environment from any 
source, using for this purpose the best practicable 
means at their disposal and in accordance with their 
capabilities, and they shall endeavour to harmonize 
their policies in this connection.

2. States shall take all measures necessary to ensure 
that activities under their jurisdiction or control are 
so conducted as not to cause damage by pollution to 
other States and their environment, and that pollution 
arising from incidents or activities under their 
jurisdiction or control does not spread beyond the areas 

United Nations Convention on the Law of the Sea




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For information about a related document, see Agreement Relating to the Implementation of Part XI of the 1982 United Nations Convention on the Law of the Sea 28 July 1994.

Summary of the "United Nations Convention on the Law of the Sea" is available from the UNEP Register of International Treaties and Other Agreements in the Field of the Environment.

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See the ENTRI thematic guide for more information about the relationships between environmental treaties, national resource indicators, and remotely sensed data.
8. UNITED NATIONS CONVENTION ON THE LAW OF THE SEA

(Montego Bay, 10 December 1982)

The States Parties to this Convention, (...) Recognizing 
the desirability of establishing through this 
Convention, with due regard for the sovereignty of all 
States, a legal order for the seas and oceans which will 
facilitate international communication, and will promote 
the peaceful uses of the seas and oceans, the equitable 
and efficient utilization of their resources, the 
conservation of their living resources, and the study, 
protection and preservation of the marine environment, 
(...)

PART I

INTRODUCTION

Article 1

Use of terms and scope

1. For the purposes of this Convention:

(1) "Area" means the sea-bed and ocean floor and subsoil 
thereof, beyonds the limits of national jurisdiction;
(...)

(4) "pollution of the marine environment" means the 
introduction by man, directly or indirectly, of 
substances or energy into the marine environment, 
including estuaries, which results or is likely to 
result in such deleterious effects as harm to living 
resources and marine life, hazards to human health, 
hindrance to marine activities, including fishing and 
other legitimate uses of the sea, impairment of quality 
for use of sea water and reduction of amenities;

(5) (a) "dumping" means:

(i) any deliberate disposal of wastes or other matter 
from vessels, aircraft, platforms or other man-made 
structures at sea;

(ii) any deliberate disposal of vessels, aircraft, 
platforms or other man-made structures at sea;

(b) "dumping" does not include:

(i) the disposal of wastes or other matter incidental 
to, or derived from the normal operations of vessels, 
aircraft, platforms or other man-made structures at sea 
and their equipment, other than wastes or other matter 
transported by or to vessels, aircraft, platforms or 
other man-made structures at sea, operating for the 
purpose of disposal of such matter or derived from the 
treatment of such wastes or other matter on such 
vessels, aircraft, platforms or structures;

(ii) placement of matter for a purpose other than the 
mere disposal thereof, provided that such placement is 
not contrary to the aims of this Convention.
(...)

PART II

TERRITORIAL SEA AND CONTIGUOUS ZONE

SECTION 3. INNOCENT PASSAGE IN THE TERRITORIAL SEA

Article 19

Meaning of innocent passage

(...)

2. Passage of a foreign ship shall be considered to be 
prejudicial to the peace, good order or security of the 
coastal State if in the territorial seas it engages in 
any of the following activities: (...)

(h)any act of wilful and serious pollution contrary to 
this Convention; (...)

Article 21

Laws and regulations of the coastal State relating to 
innocent passage

1. The coastal State may adopt laws and regulations, in 
conformity with the provisions of this Convention and 
other rules of international law, relating to innocent 
passage through the territorial sea, in respect of all 
or any of the following:

(...)

(f) the preservation of the environment of the coastal 
State and the prevention, reduction and control of 
pollution thereof; (...)

Article 22

Sea lanes and traffic separation schemes in the 
territorial sea

1. The coastal State may, where necessary having regard 
to the safety of navigation, require foreign ships 
exercising the right of innocent passage through its 
territorial sea to use such sea lanes and traffic 
separation schemes as it may designate or prescribe for 
the regulation of the passage of ships.

2. In particular, tankers, nuclear-powered ships and 
ships carrying nuclear or other inherently dangerous or 
noxious substances or materials may be required to 
confine their passage to such sea lanes.

(...)

Article 23

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances 
shall, when exercising the right of innocent passage 
through the territorial sea, carry documents and observe 
special precautionary measures established for such 
ships by international agreements.

(...)

PART III

STRAITS USED FOR INTERNATIONAL NAVIGATION

SECTION 2. TRANSIT PASSAGE

Article 39

Duties of ships and aircraft during transit passage

(...)

2. Ships in transit passage shall:

(...)

(b) comply with generally accepted international 
regulations, procedures and practices for the 
prevention, reduction and control of pollution from 
ships. (...)

Article 42

Laws and regulations of States bordering straits 
relating to transit passage

1. Subject to the provisions of this section, States 
bordering straits may adopt laws and regulations 
relating to transit passage through straits, in respect 
of all or any of the following:

(...)

(b) the prevention, reduction and control of pollution, 
by giving effect to applicable international regulations 
regarding the discharge of oil, oily wastes and other 
noxious substances in the straits;

(...)

Article 43

Navigational and safety aids and other improvements and 
the prevention, reduction and control of pollution

User States and States bordering a strait should by 
agreement co-operate:

(...)

(b) for the prevention, reduction and control of 
pollution from ships.

PART IV

ARCHIPELAGIC STATES

Article 54

Duties of ships and aircraft during their passage, 
research and survey activities, duties of the 
archipelagic State and laws and regulations of the 
archipelagic State relating to archipelagic sea lanes 
passage Articles 39, 40, 42 and 44 apply mutatis 
mutandis to archipelagic sea lanes passage.

PART V

EXCLUSIVE ECONOMIC ZONE

Article 56

Rights, jurisdiction and duties of the coastal State in 
the exclusive economic zone 

1. In the exclusive economic zone, the coastal State 
has:

(...)

(b) jurisdiction as provided for in the relevant 
provisions of this Convention with regard to:

(...)

(iii) the protection and preservation of the marine 
environment; (...)

Article 60

Artificial islands, installations and structures in the 
exclusive economic zone

(...)

3. Due notice must be given of the construction of such 
artificial islands, installations or structures, and 
permanent means for giving warning of their presence 
must be maintained. Any installations or structures 
which are abandoned or disused shall be removed to 
ensure safety of navigation, taking into account any 
generally accepted international standards established 
in this regard by the competent international 
organization. Such removal shall also have due regard to 
fishing, the protection of the marine environment and 
the rights and duties of other States. Appropriate 
publicity shall be given to the depth, position and 
dimensions of any installations or structures not 
entirely removed.

(...)

Article 65

Marine mammals

Nothing in this Part restricts the right of a coastal 
State or the competence of an international 
organization, as appropriate, to prohibit, limit or 
regulate the exploitation of marine mammals more 
strictly than provided for in this Part. States shall 
co-operate with a view to the conservation of marine 
mammals and in the case of cetaceans shall in particular 
work through the appropriate international organizations 
for their conservation, management and study.

PART VI

CONTINENTAL SHELF

Article 79

Submarine cables and pipelines on the continental shelf

(...)

2. Subject to its right to take reasonable measures for 
the exploration of the continental shelf, the 
exploitation of its natural resources and the 
prevention, reduction and control of pollution from 
pipelines, the coastal State may not impede the laying 
or maintenance of such cables or pipelines.

(...)

Article 80

Artificial islands, installations and structures on the 
continental shelf

Article 60 applies mutatis mutandis to artificial 
islands, installations and structures on the continental 
shelf.

PART VII

HIGH SEAS

SECTION 1. GENERAL PROVISIONS

Article 94

Duties of the flag State

(...)

7. Each State shall cause an inquiry to be held by or 
before a suitably qualified person or persons into every 
marine casualty or incident of navigation on the high 
seas involving a ship flying its flag and causing loss 
of life or serious injury to nationals of another state 
or serious damage to ships or installations of another 
State or to the marine environment. The flag State and 
the other State shall co-operate in the conduct of any 
inquiry held by that other State into any such marine 
casualty or incident of navigation.

SECTION 2. CONSERVATION AND MANAGEMENT OF THE LIVING 
RESOURCES OF THE HIGH SEAS

Article 120

Marine mammals

Article 65 also applies to the conservation and 
management of marine mammals in the high seas.


PART IX ENCLOSED OR SEMI-ENCLOSED SEAS

Article 123

Co-operation of States bordering enclosed or semi-
enclosed seas

States bordering an enclosed or semi-enclosed sea should 
co-operate with each other in the exercise of their 
rights and in the performance of their duties under this 
Convention. To this end they shall endeavour, directly 
or through an appropriate regional organization:

(...)

(b) to co-ordinate the implementation of their rights 
and duties with respect to the protection and 
preservation of the marine environment;

(...)


PART XI

THE AREA

SECTION 2. PRINCIPLES GOVERNING THE AREA

Article 142

Rights and legitimate interests of coastal States

(...)

3. Neither this Part nor any rights granted or exercised 
pursuant thereto shall affect the rights of coastal 
States to take such measures consistent with the 
relevant provisions of Part XII as may be necessary to 
prevent, mitigate or eliminate grave and imminent danger 
to their coastline, or related interests from pollution 
or threat thereof or from other hazardous occurrences 
resulting from or caused by any activities in the Area.


Article 145

Protection of the marine environment

Necessary measures shall be taken in accordance with 
this Convention with respect to activities in the Area 
to ensure effective protection for the marine 
environment from harmful effects which may arise from 
such activities. To this end the Authority shall adopt 
appropriate rules, regulations and procedures for inter 
alia:

(a) the prevention, reduction and control of pollution 
and other hazards to the marine environment, including 
the coastline, and of interference with the ecological 
balance of the marine environment, particular attention 
being paid to the need for protection from harmful 
effects of such activities as drilling, dredging, 
excavation, disposal of waste, construction and 
operation or maintenance of installations, pipelines and 
other devices related to such activities;

(b) the protection and conservation of the natural 
resources of the Area and the prevention of damage to 
the flora and fauna of the marine environment.

SECTION 4. THE AUTHORITY

SUBSECTION C. THE COUNCIL

Article 162

Powers and functions

(...)

2. In addition, the Council shall:

(...)

(w) issue emergency orders, which may include orders for 
the suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area;

(x) disapprove areas for exploitation by contractors or 
the Enterprise in cases where substantial evidence 
indicates the risk of serious harm to the marine 
environment;

(...)

Article 165

The Legal and Technical Commission

1. Members of the Legal and Technical Commission shall 
have appropriate qualifications such as those relevant 
to exploration for and exploitation and processing of 
mineral resources, oceanology, protection of the marine 
environment, or economic or legal matters relating to 
ocean mining and related fields of expertise. The 
Council shall endeavour to ensure that the membership of 
the Commission reflects all appropriate qualifications.

2. The Commission shall:

(...)

(e) make recommendations to the Council on the 
protection of the marine environment, taking into 
account the views of recognized experts in that field;

(f) formulate and submit to the Council the rules, 
regulations and procedures referred to in article 162, 
paragraph 2(o), taking into account all relevant factors 
including assessments of the environmental implications 
of activities in the Area;

(...)

(h) make recommendations to the Council regarding the 
establishment of a monitoring programme to observe, 
measure, evaluate and analyse, by recognized scientific 
methods, on a regular basis, the risks or effects of 
pollution of the marine environment resulting from 
activities in the Area, ensure that existing regulations 
are adequate and are complied with and co-ordinate the 
implementation of the monitoring programme approved by 
the Council;

(...)

(k) make recommendations to the Council to issue 
emergency orders, which may include orders for the 
suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area. Such recommendations shall be 
taken up by the Council on a priority basis;

(l) make recommendations to the Council to disapprove 
areas for exploitation by contractors or the Enterprise 
in cases where substantial evidence indicates the risk 
of serious harm to the marine environment;

(...)

PART XII

PROTECTION AND PRESERVATION OF THE MARINE ENVIRONMENT
SECTION 1. GENERAL PROVISIONS

Article 192

General obligation

States have the obligation to protect and preserve the 
marine environment.

Article 193

Sovereign right of States to exploit their natural 
resources

States have the sovereign right to exploit their natural 
resources pursuant to their environmental policies and 
in accordance with their duty to protect and preserve 
the marine environment.

Article 194

Measures to prevent, reduce and control pollution of the 
marine environment

1. States shall take, individually or jointly as 
appropriate, all measures consistent with this 
Convention that are necessary to prevent, reduce and 
control pollution of the marine environment from any 
source, using for this purpose the best practicable 
means at their disposal and in accordance with their 
capabilities, and they shall endeavour to harmonize 
their policies in this connection.

2. States shall take all measures necessary to ensure 
that activities under their jurisdiction or control are 
so conducted as not to cause damage by pollution to 
other States and their environment, and that pollution 
arising from incidents or activities under their 
jurisdiction or control does not spread beyond the areas 
where they exercise sovereign rights in accordance with 
this Convention. 3. The measures taken pursuant to this 
Part shall deal with all sources of pollution of the 
marine environment. These measures shall include, inter 
alia, those designed to minimize to the fullest possible 
extent:

(a) the release of toxic, harmful or noxious substances, 
especially those which are persistent, from land-based 
sources, from or through the atmosphere or by dumping;

(b) pollution from vessels, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, preventing 
intentional and unintentional discharges, and regulating 
the design, construction, equipment, operation and 
manning of vessels;

(c) pollution from installations and devices used in 
exploration or exploitation of the natural resources of 
the sea-bed and subsoil, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, and regulating 
the design, construction, equipment, operation and 
manning of such installations or devices;

(d) pollution from other installations and devices 
operating in the marine environment, in particular 
measures for preventing accidents and dealing with 
emergencies, ensuring the safety of operations at sea, 
and regulating the design, construction, equipment, 
operation and manning of such installations or devices.

4. In taking measures to prevent, reduce or control 
pollution of the marine environment, States shall 
refrain from unjustifiable interference with activities 
carried out by other States in the exercise of their 
rights and in pursuance of their duties in conformity 
with this Convention.

5. The measures taken in accordance with this Part shall 
include those necessary to protect and preserve rare or 
fragile ecosystems as well as the habitat of depleted, 
threatened or endangered species and other forms of 
marine life.

Article 195

Duty not to transfer damage or hazards or transform one 
type of pollution into another In taking measures to 
prevent, reduce and control pollution of the marine 
environment, States shall act so as not to transfer, 
directly or indirectly, damage or hazards from one area 
to another or transform one type of pollution into 
another.

Article 196

Use of technologies or introduction of alien or new 
species

1. States shall take all measures necessary to prevent, 
reduce and control pollution of the marine environment 
resulting from the use of technologies under their 
jurisdiction or control, or the intentional or 
accidental introduction of species, alien or new, to a 
particular part of the marine environment, which may 
cause significant and harmful changes thereto.

2. This article does not affect the application of this 
Convention regarding the prevention, reduction and 
control of pollution of the marine environment.

SECTION 2. GLOBAL AND REGIONAL CO-OPERATION

Article 197

Co-operation on a global or regional basis

States shall co-operate on a global basis and, as 
appropriate, on a regional basis, directly or through 
competent international organizations, in formulating 
and elaborating international rules, standards and 
recommended practices and procedures consistent 
with this Convention, for the protection and 
preservation of the marine environment, taking into 
account characteristic regional features.

Article 198

Notification of imminent or actual damage

When a State becomes aware of cases in which the marine 
environment is in imminent danger of being damaged or 
has been damaged by pollution, it shall immediately 
notify other States it deems likely to be affected by 
such damage, as well as the competent international 
organizations.

Article 199

Contingency plans against pollution

In the cases referred to in article 198, States in the 
area affected, in accordance with their capabilities, 
and the competent international organizations shall co-
operate, to the extent possible, in eliminating the 
effects of pollution and preventing or mini

United Nations Convention on the Law of the Sea




This data access service is provided by the Center for International Earth Science Information Network (CIESIN), which operates the Socioeconomic Data and Applications Center (SEDAC) for the U.S. National Aeronautics and Space Administration (NASA).
Service Providers

Environmental Treaties and Resource Indicators (ENTRI) -- Full Text File


For information about a related document, see Agreement Relating to the Implementation of Part XI of the 1982 United Nations Convention on the Law of the Sea 28 July 1994.

Summary of the "United Nations Convention on the Law of the Sea" is available from the UNEP Register of International Treaties and Other Agreements in the Field of the Environment.

See the ENTRI query system for information about the status of this treaty.


See the ENTRI thematic guide for more information about the relationships between environmental treaties, national resource indicators, and remotely sensed data.
8. UNITED NATIONS CONVENTION ON THE LAW OF THE SEA

(Montego Bay, 10 December 1982)

The States Parties to this Convention, (...) Recognizing 
the desirability of establishing through this 
Convention, with due regard for the sovereignty of all 
States, a legal order for the seas and oceans which will 
facilitate international communication, and will promote 
the peaceful uses of the seas and oceans, the equitable 
and efficient utilization of their resources, the 
conservation of their living resources, and the study, 
protection and preservation of the marine environment, 
(...)

PART I

INTRODUCTION

Article 1

Use of terms and scope

1. For the purposes of this Convention:

(1) "Area" means the sea-bed and ocean floor and subsoil 
thereof, beyonds the limits of national jurisdiction;
(...)

(4) "pollution of the marine environment" means the 
introduction by man, directly or indirectly, of 
substances or energy into the marine environment, 
including estuaries, which results or is likely to 
result in such deleterious effects as harm to living 
resources and marine life, hazards to human health, 
hindrance to marine activities, including fishing and 
other legitimate uses of the sea, impairment of quality 
for use of sea water and reduction of amenities;

(5) (a) "dumping" means:

(i) any deliberate disposal of wastes or other matter 
from vessels, aircraft, platforms or other man-made 
structures at sea;

(ii) any deliberate disposal of vessels, aircraft, 
platforms or other man-made structures at sea;

(b) "dumping" does not include:

(i) the disposal of wastes or other matter incidental 
to, or derived from the normal operations of vessels, 
aircraft, platforms or other man-made structures at sea 
and their equipment, other than wastes or other matter 
transported by or to vessels, aircraft, platforms or 
other man-made structures at sea, operating for the 
purpose of disposal of such matter or derived from the 
treatment of such wastes or other matter on such 
vessels, aircraft, platforms or structures;

(ii) placement of matter for a purpose other than the 
mere disposal thereof, provided that such placement is 
not contrary to the aims of this Convention.
(...)

PART II

TERRITORIAL SEA AND CONTIGUOUS ZONE

SECTION 3. INNOCENT PASSAGE IN THE TERRITORIAL SEA

Article 19

Meaning of innocent passage

(...)

2. Passage of a foreign ship shall be considered to be 
prejudicial to the peace, good order or security of the 
coastal State if in the territorial seas it engages in 
any of the following activities: (...)

(h)any act of wilful and serious pollution contrary to 
this Convention; (...)

Article 21

Laws and regulations of the coastal State relating to 
innocent passage

1. The coastal State may adopt laws and regulations, in 
conformity with the provisions of this Convention and 
other rules of international law, relating to innocent 
passage through the territorial sea, in respect of all 
or any of the following:

(...)

(f) the preservation of the environment of the coastal 
State and the prevention, reduction and control of 
pollution thereof; (...)

Article 22

Sea lanes and traffic separation schemes in the 
territorial sea

1. The coastal State may, where necessary having regard 
to the safety of navigation, require foreign ships 
exercising the right of innocent passage through its 
territorial sea to use such sea lanes and traffic 
separation schemes as it may designate or prescribe for 
the regulation of the passage of ships.

2. In particular, tankers, nuclear-powered ships and 
ships carrying nuclear or other inherently dangerous or 
noxious substances or materials may be required to 
confine their passage to such sea lanes.

(...)

Article 23

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances 
shall, when exercising the right of innocent passage 
through the territorial sea, carry documents and observe 
special precautionary measures established for such 
ships by international agreements.

(...)

PART III

STRAITS USED FOR INTERNATIONAL NAVIGATION

SECTION 2. TRANSIT PASSAGE

Article 39

Duties of ships and aircraft during transit passage

(...)

2. Ships in transit passage shall:

(...)

(b) comply with generally accepted international 
regulations, procedures and practices for the 
prevention, reduction and control of pollution from 
ships. (...)

Article 42

Laws and regulations of States bordering straits 
relating to transit passage

1. Subject to the provisions of this section, States 
bordering straits may adopt laws and regulations 
relating to transit passage through straits, in respect 
of all or any of the following:

(...)

(b) the prevention, reduction and control of pollution, 
by giving effect to applicable international regulations 
regarding the discharge of oil, oily wastes and other 
noxious substances in the straits;

(...)

Article 43

Navigational and safety aids and other improvements and 
the prevention, reduction and control of pollution

User States and States bordering a strait should by 
agreement co-operate:

(...)

(b) for the prevention, reduction and control of 
pollution from ships.

PART IV

ARCHIPELAGIC STATES

Article 54

Duties of ships and aircraft during their passage, 
research and survey activities, duties of the 
archipelagic State and laws and regulations of the 
archipelagic State relating to archipelagic sea lanes 
passage Articles 39, 40, 42 and 44 apply mutatis 
mutandis to archipelagic sea lanes passage.

PART V

EXCLUSIVE ECONOMIC ZONE

Article 56

Rights, jurisdiction and duties of the coastal State in 
the exclusive economic zone 

1. In the exclusive economic zone, the coastal State 
has:

(...)

(b) jurisdiction as provided for in the relevant 
provisions of this Convention with regard to:

(...)

(iii) the protection and preservation of the marine 
environment; (...)

Article 60

Artificial islands, installations and structures in the 
exclusive economic zone

(...)

3. Due notice must be given of the construction of such 
artificial islands, installations or structures, and 
permanent means for giving warning of their presence 
must be maintained. Any installations or structures 
which are abandoned or disused shall be removed to 
ensure safety of navigation, taking into account any 
generally accepted international standards established 
in this regard by the competent international 
organization. Such removal shall also have due regard to 
fishing, the protection of the marine environment and 
the rights and duties of other States. Appropriate 
publicity shall be given to the depth, position and 
dimensions of any installations or structures not 
entirely removed.

(...)

Article 65

Marine mammals

Nothing in this Part restricts the right of a coastal 
State or the competence of an international 
organization, as appropriate, to prohibit, limit or 
regulate the exploitation of marine mammals more 
strictly than provided for in this Part. States shall 
co-operate with a view to the conservation of marine 
mammals and in the case of cetaceans shall in particular 
work through the appropriate international organizations 
for their conservation, management and study.

PART VI

CONTINENTAL SHELF

Article 79

Submarine cables and pipelines on the continental shelf

(...)

2. Subject to its right to take reasonable measures for 
the exploration of the continental shelf, the 
exploitation of its natural resources and the 
prevention, reduction and control of pollution from 
pipelines, the coastal State may not impede the laying 
or maintenance of such cables or pipelines.

(...)

Article 80

Artificial islands, installations and structures on the 
continental shelf

Article 60 applies mutatis mutandis to artificial 
islands, installations and structures on the continental 
shelf.

PART VII

HIGH SEAS

SECTION 1. GENERAL PROVISIONS

Article 94

Duties of the flag State

(...)

7. Each State shall cause an inquiry to be held by or 
before a suitably qualified person or persons into every 
marine casualty or incident of navigation on the high 
seas involving a ship flying its flag and causing loss 
of life or serious injury to nationals of another state 
or serious damage to ships or installations of another 
State or to the marine environment. The flag State and 
the other State shall co-operate in the conduct of any 
inquiry held by that other State into any such marine 
casualty or incident of navigation.

SECTION 2. CONSERVATION AND MANAGEMENT OF THE LIVING 
RESOURCES OF THE HIGH SEAS

Article 120

Marine mammals

Article 65 also applies to the conservation and 
management of marine mammals in the high seas.


PART IX ENCLOSED OR SEMI-ENCLOSED SEAS

Article 123

Co-operation of States bordering enclosed or semi-
enclosed seas

States bordering an enclosed or semi-enclosed sea should 
co-operate with each other in the exercise of their 
rights and in the performance of their duties under this 
Convention. To this end they shall endeavour, directly 
or through an appropriate regional organization:

(...)

(b) to co-ordinate the implementation of their rights 
and duties with respect to the protection and 
preservation of the marine environment;

(...)


PART XI

THE AREA

SECTION 2. PRINCIPLES GOVERNING THE AREA

Article 142

Rights and legitimate interests of coastal States

(...)

3. Neither this Part nor any rights granted or exercised 
pursuant thereto shall affect the rights of coastal 
States to take such measures consistent with the 
relevant provisions of Part XII as may be necessary to 
prevent, mitigate or eliminate grave and imminent danger 
to their coastline, or related interests from pollution 
or threat thereof or from other hazardous occurrences 
resulting from or caused by any activities in the Area.


Article 145

Protection of the marine environment

Necessary measures shall be taken in accordance with 
this Convention with respect to activities in the Area 
to ensure effective protection for the marine 
environment from harmful effects which may arise from 
such activities. To this end the Authority shall adopt 
appropriate rules, regulations and procedures for inter 
alia:

(a) the prevention, reduction and control of pollution 
and other hazards to the marine environment, including 
the coastline, and of interference with the ecological 
balance of the marine environment, particular attention 
being paid to the need for protection from harmful 
effects of such activities as drilling, dredging, 
excavation, disposal of waste, construction and 
operation or maintenance of installations, pipelines and 
other devices related to such activities;

(b) the protection and conservation of the natural 
resources of the Area and the prevention of damage to 
the flora and fauna of the marine environment.

SECTION 4. THE AUTHORITY

SUBSECTION C. THE COUNCIL

Article 162

Powers and functions

(...)

2. In addition, the Council shall:

(...)

(w) issue emergency orders, which may include orders for 
the suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area;

(x) disapprove areas for exploitation by contractors or 
the Enterprise in cases where substantial evidence 
indicates the risk of serious harm to the marine 
environment;

(...)

Article 165

The Legal and Technical Commission

1. Members of the Legal and Technical Commission shall 
have appropriate qualifications such as those relevant 
to exploration for and exploitation and processing of 
mineral resources, oceanology, protection of the marine 
environment, or economic or legal matters relating to 
ocean mining and related fields of expertise. The 
Council shall endeavour to ensure that the membership of 
the Commission reflects all appropriate qualifications.

2. The Commission shall:

(...)

(e) make recommendations to the Council on the 
protection of the marine environment, taking into 
account the views of recognized experts in that field;

(f) formulate and submit to the Council the rules, 
regulations and procedures referred to in article 162, 
paragraph 2(o), taking into account all relevant factors 
including assessments of the environmental implications 
of activities in the Area;

(...)

(h) make recommendations to the Council regarding the 
establishment of a monitoring programme to observe, 
measure, evaluate and analyse, by recognized scientific 
methods, on a regular basis, the risks or effects of 
pollution of the marine environment resulting from 
activities in the Area, ensure that existing regulations 
are adequate and are complied with and co-ordinate the 
implementation of the monitoring programme approved by 
the Council;

(...)

(k) make recommendations to the Council to issue 
emergency orders, which may include orders for the 
suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area. Such recommendations shall be 
taken up by the Council on a priority basis;

(l) make recommendations to the Council to disapprove 
areas for exploitation by contractors or the Enterprise 
in cases where substantial evidence indicates the risk 
of serious harm to the marine environment;

(...)

PART XII

PROTECTION AND PRESERVATION OF THE MARINE ENVIRONMENT
SECTION 1. GENERAL PROVISIONS

Article 192

General obligation

States have the obligation to protect and preserve the 
marine environment.

Article 193

Sovereign right of States to exploit their natural 
resources

States have the sovereign right to exploit their natural 
resources pursuant to their environmental policies and 
in accordance with their duty to protect and preserve 
the marine environment.

Article 194

Measures to prevent, reduce and control pollution of the 
marine environment

1. States shall take, individually or jointly as 
appropriate, all measures consistent with this 
Convention that are necessary to prevent, reduce and 
control pollution of the marine environment from any 
source, using for this purpose the best practicable 
means at their disposal and in accordance with their 
capabilities, and they shall endeavour to harmonize 
their policies in this connection.

2. States shall take all measures necessary to ensure 
that activities under their jurisdiction or control are 
so conducted as not to cause damage by pollution to 
other States and their environment, and that pollution 
arising from incidents or activities under their 
jurisdiction or control does not spread beyond the areas 
where they exercise sovereign rights in accordance with 
this Convention. 3. The measures taken pursuant to this 
Part shall deal with all sources of pollution of the 
marine environment. These measures shall include, inter 
alia, those designed to minimize to the fullest possible 
extent:

(a) the release of toxic, harmful or noxious substances, 
especially those which are persistent, from land-based 
sources, from or through the atmosphere or by dumping;

(b) pollution from vessels, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, preventing 
intentional and unintentional discharges, and regulating 
the design, construction, equipment, operation and 
manning of vessels;

(c) pollution from installations and devices used in 
exploration or exploitation of the natural resources of 
the sea-bed and subsoil, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, and regulating 
the design, construction, equipment, operation and 
manning of such installations or devices;

(d) pollution from other installations and devices 
operating in the marine environment, in particular 
measures for preventing accidents and dealing with 
emergencies, ensuring the safety of operations at sea, 
and regulating the design, construction, equipment, 
operation and manning of such installations or devices.

4. In taking measures to prevent, reduce or control 
pollution of the marine environment, States shall 
refrain from unjustifiable interference with activities 
carried out by other States in the exercise of their 
rights and in pursuance of their duties in conformity 
with this Convention.

5. The measures taken in accordance with this Part shall 
include those necessary to protect and preserve rare or 
fragile ecosystems as well as the habitat of depleted, 
threatened or endangered species and other forms of 
marine life.

Article 195

Duty not to transfer damage or hazards or transform one 
type of pollution into another In taking measures to 
prevent, reduce and control pollution of the marine 
environment, States shall act so as not to transfer, 
directly or indirectly, damage or hazards from one area 
to another or transform one type of pollution into 
another.

Article 196

Use of technologies or introduction of alien or new 
species

1. States shall take all measures necessary to prevent, 
reduce and control pollution of the marine environment 
resulting from the use of technologies under their 
jurisdiction or control, or the intentional or 
accidental introduction of species, alien or new, to a 
particular part of the marine environment, which may 
cause significant and harmful changes thereto.

2. This article does not affect the application of this 
Convention regarding the prevention, reduction and 
control of pollution of the marine environment.

SECTION 2. GLOBAL AND REGIONAL CO-OPERATION

Article 197

Co-operation on a global or regional basis

States shall co-operate on a global basis and, as 
appropriate, on a regional basis, directly or through 
competent international organizations, in formulating 
and elaborating international rules, standards and 
recommended practices and procedures consistent 
with this Convention, for the protection and 
preservation of the marine environment, taking into 
account characteristic regional features.

Article 198

Notification of imminent or actual damage

When a State becomes aware of cases in which the marine 
environment is in imminent danger of being damaged or 
has been damaged by pollution, it shall immediately 
notify other States it deems likely to be affected by 
such damage, as well as the competent international 
organizations.

Article 199

Contingency plans against pollution

In the cases referred to in article 198, States in the 
area affected, in accordance with their capabilities, 
and the competent international organizations shall co-
operate, to the extent possible, in eliminating the 
effects of pollution and preventing or minimizing the 
damage. To this end, States shall jointly develop and 
promote contingency plans for responding to pollution 
incidents in the marine environment.

Article 200

Studies, research programmes and exchange of information 
and data States shall co-operate, directly or through 
competent international organizations, for the purpose 
of promoting studies, undertaking programmes of 
scientific research and encouraging the exchange of 
information and data acquired about pollution of the 
marine environment. They shall endeavour to participate 
actively in regional and global programmes to acquire 
knowledge for the assessment of the nature and extent of 
pollution, exposure to it, and its pathways, risks and 
remedies.

Article 201

Scientific criteria for regulations

In the light of the information and data acquired 
pursuant to article 200, States shall co-operate, 
directly or through competent international 
organizations, in establishing appropriate scientific 
criteria for the formulation and elaboration of rules, 
standards and recommended practices and procedures for 
the prevention, reduction and control of pollution of 
the marine environment.

SECTION 3. TECHNICAL ASSISTANCE

Article 202

Scientific and technical assistance to developing States

States shall, directly or through competent 
international organizations:

(a) promote programmes of scientific, educational, 
technical and other assistance to developing States for 
the protection and preservation of the marine 
environment and the prevention, reduction and control of 
marine pollution. Such assistance shall include, inter 
alia:

(i) training of their scientific and technical 
personnel;

(ii) facilitating their participation in relevant 
international programmes;

(iii) supplying them with necessary equipment and 
facilities; 

(iv) enhancing their capacity to manufacture such 
equipment; 

(v) advice on and developing facilities for research, 
monitoring, educational and other programmes;

(b) provide appropriate assistance, especially to 
developing States, for the minimization of the effects 
of major incidents which may cause serious pollution of 
the marine environment;

(c) provide appropriate assistance, especially to 
developing States, concerning the preparation of 
environmental assessments.

Article 203

Preferential treatment for developing States

Developing States shall, for the purposes of prevention, 
reduction and control of pollution of the marine 
environment or minimization of its effects, be granted 
preference by international organizations in:

(a) the allocation of appropriate funds and technical 
assistances; and

(b) the utilization of their specialized services.

SECTION 4. MONITORING AND ENVIRONMENTAL ASSESSMENT


Article 204

Monitoring of the risks or effects of pollution

1. States shall, consistent with the rights of other 
States, endeavour, as far as practicable, directly or 
through the competent international organizations, to 
observe, measure, evaluate and analyse, by recognized 
scientific methods, the risks or effects of pollution of 
the marine environment.

2. In particular, States shall keep under surveillance 
the effects of any activities which they permit or in 
which they engage in order to determine whether these 
activities are likely to pollute the marine environment.

Article 205

Publication of reports

States shall publish reports of the results obtained 
pursuant to article 204 or provide such reports at 
appropriate intervals to the competent international 
organizations, which should make them available to all 
States.

Article 206

Assessment of potential effects of activities

When States have reasonable grounds for believing that 
planned activities under their jurisdiction or control 
may cause substantial pollution of or significant and 
harmful changes to the marine environment, they shall, 
as far as practicable, assess the potential effects of 
such activities on the marine environment and shall 
communicate reports of the results of such assessments 
in the manner provided in ar

United Nations Convention on the Law of the Sea




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8. UNITED NATIONS CONVENTION ON THE LAW OF THE SEA

(Montego Bay, 10 December 1982)

The States Parties to this Convention, (...) Recognizing 
the desirability of establishing through this 
Convention, with due regard for the sovereignty of all 
States, a legal order for the seas and oceans which will 
facilitate international communication, and will promote 
the peaceful uses of the seas and oceans, the equitable 
and efficient utilization of their resources, the 
conservation of their living resources, and the study, 
protection and preservation of the marine environment, 
(...)

PART I

INTRODUCTION

Article 1

Use of terms and scope

1. For the purposes of this Convention:

(1) "Area" means the sea-bed and ocean floor and subsoil 
thereof, beyonds the limits of national jurisdiction;
(...)

(4) "pollution of the marine environment" means the 
introduction by man, directly or indirectly, of 
substances or energy into the marine environment, 
including estuaries, which results or is likely to 
result in such deleterious effects as harm to living 
resources and marine life, hazards to human health, 
hindrance to marine activities, including fishing and 
other legitimate uses of the sea, impairment of quality 
for use of sea water and reduction of amenities;

(5) (a) "dumping" means:

(i) any deliberate disposal of wastes or other matter 
from vessels, aircraft, platforms or other man-made 
structures at sea;

(ii) any deliberate disposal of vessels, aircraft, 
platforms or other man-made structures at sea;

(b) "dumping" does not include:

(i) the disposal of wastes or other matter incidental 
to, or derived from the normal operations of vessels, 
aircraft, platforms or other man-made structures at sea 
and their equipment, other than wastes or other matter 
transported by or to vessels, aircraft, platforms or 
other man-made structures at sea, operating for the 
purpose of disposal of such matter or derived from the 
treatment of such wastes or other matter on such 
vessels, aircraft, platforms or structures;

(ii) placement of matter for a purpose other than the 
mere disposal thereof, provided that such placement is 
not contrary to the aims of this Convention.
(...)

PART II

TERRITORIAL SEA AND CONTIGUOUS ZONE

SECTION 3. INNOCENT PASSAGE IN THE TERRITORIAL SEA

Article 19

Meaning of innocent passage

(...)

2. Passage of a foreign ship shall be considered to be 
prejudicial to the peace, good order or security of the 
coastal State if in the territorial seas it engages in 
any of the following activities: (...)

(h)any act of wilful and serious pollution contrary to 
this Convention; (...)

Article 21

Laws and regulations of the coastal State relating to 
innocent passage

1. The coastal State may adopt laws and regulations, in 
conformity with the provisions of this Convention and 
other rules of international law, relating to innocent 
passage through the territorial sea, in respect of all 
or any of the following:

(...)

(f) the preservation of the environment of the coastal 
State and the prevention, reduction and control of 
pollution thereof; (...)

Article 22

Sea lanes and traffic separation schemes in the 
territorial sea

1. The coastal State may, where necessary having regard 
to the safety of navigation, require foreign ships 
exercising the right of innocent passage through its 
territorial sea to use such sea lanes and traffic 
separation schemes as it may designate or prescribe for 
the regulation of the passage of ships.

2. In particular, tankers, nuclear-powered ships and 
ships carrying nuclear or other inherently dangerous or 
noxious substances or materials may be required to 
confine their passage to such sea lanes.

(...)

Article 23

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances 
shall, when exercising the right of innocent passage 
through the territorial sea, carry documents and observe 
special precautionary measures established for such 
ships by international agreements.

(...)

PART III

STRAITS USED FOR INTERNATIONAL NAVIGATION

SECTION 2. TRANSIT PASSAGE

Article 39

Duties of ships and aircraft during transit passage

(...)

2. Ships in transit passage shall:

(...)

(b) comply with generally accepted international 
regulations, procedures and practices for the 
prevention, reduction and control of pollution from 
ships. (...)

Article 42

Laws and regulations of States bordering straits 
relating to transit passage

1. Subject to the provisions of this section, States 
bordering straits may adopt laws and regulations 
relating to transit passage through straits, in respect 
of all or any of the following:

(...)

(b) the prevention, reduction and control of pollution, 
by giving effect to applicable international regulations 
regarding the discharge of oil, oily wastes and other 
noxious substances in the straits;

(...)

Article 43

Navigational and safety aids and other improvements and 
the prevention, reduction and control of pollution

User States and States bordering a strait should by 
agreement co-operate:

(...)

(b) for the prevention, reduction and control of 
pollution from ships.

PART IV

ARCHIPELAGIC STATES

Article 54

Duties of ships and aircraft during their passage, 
research and survey activities, duties of the 
archipelagic State and laws and regulations of the 
archipelagic State relating to archipelagic sea lanes 
passage Articles 39, 40, 42 and 44 apply mutatis 
mutandis to archipelagic sea lanes passage.

PART V

EXCLUSIVE ECONOMIC ZONE

Article 56

Rights, jurisdiction and duties of the coastal State in 
the exclusive economic zone 

1. In the exclusive economic zone, the coastal State 
has:

(...)

(b) jurisdiction as provided for in the relevant 
provisions of this Convention with regard to:

(...)

(iii) the protection and preservation of the marine 
environment; (...)

Article 60

Artificial islands, installations and structures in the 
exclusive economic zone

(...)

3. Due notice must be given of the construction of such 
artificial islands, installations or structures, and 
permanent means for giving warning of their presence 
must be maintained. Any installations or structures 
which are abandoned or disused shall be removed to 
ensure safety of navigation, taking into account any 
generally accepted international standards established 
in this regard by the competent international 
organization. Such removal shall also have due regard to 
fishing, the protection of the marine environment and 
the rights and duties of other States. Appropriate 
publicity shall be given to the depth, position and 
dimensions of any installations or structures not 
entirely removed.

(...)

Article 65

Marine mammals

Nothing in this Part restricts the right of a coastal 
State or the competence of an international 
organization, as appropriate, to prohibit, limit or 
regulate the exploitation of marine mammals more 
strictly than provided for in this Part. States shall 
co-operate with a view to the conservation of marine 
mammals and in the case of cetaceans shall in particular 
work through the appropriate international organizations 
for their conservation, management and study.

PART VI

CONTINENTAL SHELF

Article 79

Submarine cables and pipelines on the continental shelf

(...)

2. Subject to its right to take reasonable measures for 
the exploration of the continental shelf, the 
exploitation of its natural resources and the 
prevention, reduction and control of pollution from 
pipelines, the coastal State may not impede the laying 
or maintenance of such cables or pipelines.

(...)

Article 80

Artificial islands, installations and structures on the 
continental shelf

Article 60 applies mutatis mutandis to artificial 
islands, installations and structures on the continental 
shelf.

PART VII

HIGH SEAS

SECTION 1. GENERAL PROVISIONS

Article 94

Duties of the flag State

(...)

7. Each State shall cause an inquiry to be held by or 
before a suitably qualified person or persons into every 
marine casualty or incident of navigation on the high 
seas involving a ship flying its flag and causing loss 
of life or serious injury to nationals of another state 
or serious damage to ships or installations of another 
State or to the marine environment. The flag State and 
the other State shall co-operate in the conduct of any 
inquiry held by that other State into any such marine 
casualty or incident of navigation.

SECTION 2. CONSERVATION AND MANAGEMENT OF THE LIVING 
RESOURCES OF THE HIGH SEAS

Article 120

Marine mammals

Article 65 also applies to the conservation and 
management of marine mammals in the high seas.


PART IX ENCLOSED OR SEMI-ENCLOSED SEAS

Article 123

Co-operation of States bordering enclosed or semi-
enclosed seas

States bordering an enclosed or semi-enclosed sea should 
co-operate with each other in the exercise of their 
rights and in the performance of their duties under this 
Convention. To this end they shall endeavour, directly 
or through an appropriate regional organization:

(...)

(b) to co-ordinate the implementation of their rights 
and duties with respect to the protection and 
preservation of the marine environment;

(...)


PART XI

THE AREA

SECTION 2. PRINCIPLES GOVERNING THE AREA

Article 142

Rights and legitimate interests of coastal States

(...)

3. Neither this Part nor any rights granted or exercised 
pursuant thereto shall affect the rights of coastal 
States to take such measures consistent with the 
relevant provisions of Part XII as may be necessary to 
prevent, mitigate or eliminate grave and imminent danger 
to their coastline, or related interests from pollution 
or threat thereof or from other hazardous occurrences 
resulting from or caused by any activities in the Area.


Article 145

Protection of the marine environment

Necessary measures shall be taken in accordance with 
this Convention with respect to activities in the Area 
to ensure effective protection for the marine 
environment from harmful effects which may arise from 
such activities. To this end the Authority shall adopt 
appropriate rules, regulations and procedures for inter 
alia:

(a) the prevention, reduction and control of pollution 
and other hazards to the marine environment, including 
the coastline, and of interference with the ecological 
balance of the marine environment, particular attention 
being paid to the need for protection from harmful 
effects of such activities as drilling, dredging, 
excavation, disposal of waste, construction and 
operation or maintenance of installations, pipelines and 
other devices related to such activities;

(b) the protection and conservation of the natural 
resources of the Area and the prevention of damage to 
the flora and fauna of the marine environment.

SECTION 4. THE AUTHORITY

SUBSECTION C. THE COUNCIL

Article 162

Powers and functions

(...)

2. In addition, the Council shall:

(...)

(w) issue emergency orders, which may include orders for 
the suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area;

(x) disapprove areas for exploitation by contractors or 
the Enterprise in cases where substantial evidence 
indicates the risk of serious harm to the marine 
environment;

(...)

Article 165

The Legal and Technical Commission

1. Members of the Legal and Technical Commission shall 
have appropriate qualifications such as those relevant 
to exploration for and exploitation and processing of 
mineral resources, oceanology, protection of the marine 
environment, or economic or legal matters relating to 
ocean mining and related fields of expertise. The 
Council shall endeavour to ensure that the membership of 
the Commission reflects all appropriate qualifications.

2. The Commission shall:

(...)

(e) make recommendations to the Council on the 
protection of the marine environment, taking into 
account the views of recognized experts in that field;

(f) formulate and submit to the Council the rules, 
regulations and procedures referred to in article 162, 
paragraph 2(o), taking into account all relevant factors 
including assessments of the environmental implications 
of activities in the Area;

(...)

(h) make recommendations to the Council regarding the 
establishment of a monitoring programme to observe, 
measure, evaluate and analyse, by recognized scientific 
methods, on a regular basis, the risks or effects of 
pollution of the marine environment resulting from 
activities in the Area, ensure that existing regulations 
are adequate and are complied with and co-ordinate the 
implementation of the monitoring programme approved by 
the Council;

(...)

(k) make recommendations to the Council to issue 
emergency orders, which may include orders for the 
suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area. Such recommendations shall be 
taken up by the Council on a priority basis;

(l) make recommendations to the Council to disapprove 
areas for exploitation by contractors or the Enterprise 
in cases where substantial evidence indicates the risk 
of serious harm to the marine environment;

(...)

PART XII

PROTECTION AND PRESERVATION OF THE MARINE ENVIRONMENT
SECTION 1. GENERAL PROVISIONS

Article 192

General obligation

States have the obligation to protect and preserve the 
marine environment.

Article 193

Sovereign right of States to exploit their natural 
resources

States have the sovereign right to exploit their natural 
resources pursuant to their environmental policies and 
in accordance with their duty to protect and preserve 
the marine environment.

Article 194

Measures to prevent, reduce and control pollution of the 
marine environment

1. States shall take, individually or jointly as 
appropriate, all measures consistent with this 
Convention that are necessary to prevent, reduce and 
control pollution of the marine environment from any 
source, using for this purpose the best practicable 
means at their disposal and in accordance with their 
capabilities, and they shall endeavour to harmonize 
their policies in this connection.

2. States shall take all measures necessary to ensure 
that activities under their jurisdiction or control are 
so conducted as not to cause damage by pollution to 
other States and their environment, and that pollution 
arising from incidents or activities under their 
jurisdiction or control does not spread beyond the areas 
where they exercise sovereign rights in accordance with 
this Convention. 3. The measures taken pursuant to this 
Part shall deal with all sources of pollution of the 
marine environment. These measures shall include, inter 
alia, those designed to minimize to the fullest possible 
extent:

(a) the release of toxic, harmful or noxious substances, 
especially those which are persistent, from land-based 
sources, from or through the atmosphere or by dumping;

(b) pollution from vessels, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, preventing 
intentional and unintentional discharges, and regulating 
the design, construction, equipment, operation and 
manning of vessels;

(c) pollution from installations and devices used in 
exploration or exploitation of the natural resources of 
the sea-bed and subsoil, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, and regulating 
the design, construction, equipment, operation and 
manning of such installations or devices;

(d) pollution from other installations and devices 
operating in the marine environment, in particular 
measures for preventing accidents and dealing with 
emergencies, ensuring the safety of operations at sea, 
and regulating the design, construction, equipment, 
operation and manning of such installations or devices.

4. In taking measures to prevent, reduce or control 
pollution of the marine environment, States shall 
refrain from unjustifiable interference with activities 
carried out by other States in the exercise of their 
rights and in pursuance of their duties in conformity 
with this Convention.

5. The measures taken in accordance with this Part shall 
include those necessary to protect and preserve rare or 
fragile ecosystems as well as the habitat of depleted, 
threatened or endangered species and other forms of 
marine life.

Article 195

Duty not to transfer damage or hazards or transform one 
type of pollution into another In taking measures to 
prevent, reduce and control pollution of the marine 
environment, States shall act so as not to transfer, 
directly or indirectly, damage or hazards from one area 
to another or transform one type of pollution into 
another.

Article 196

Use of technologies or introduction of alien or new 
species

1. States shall take all measures necessary to prevent, 
reduce and control pollution of the marine environment 
resulting from the use of technologies under their 
jurisdiction or control, or the intentional or 
accidental introduction of species, alien or new, to a 
particular part of the marine environment, which may 
cause significant and harmful changes thereto.

2. This article does not affect the application of this 
Convention regarding the prevention, reduction and 
control of pollution of the marine environment.

SECTION 2. GLOBAL AND REGIONAL CO-OPERATION

Article 197

Co-operation on a global or regional basis

States shall co-operate on a global basis and, as 
appropriate, on a regional basis, directly or through 
competent international organizations, in formulating 
and elaborating international rules, standards and 
recommended practices and procedures consistent 
with this Convention, for the protection and 
preservation of the marine environment, taking into 
account characteristic regional features.

Article 198

Notification of imminent or actual damage

When a State becomes aware of cases in which the marine 
environment is in imminent danger of being damaged or 
has been damaged by pollution, it shall immediately 
notify other States it deems likely to be affected by 
such damage, as well as the competent international 
organizations.

Article 199

Contingency plans against pollution

In the cases referred to in article 198, States in the 
area affected, in accordance with their capabilities, 
and the competent international organizations shall co-
operate, to the extent possible, in eliminating the 
effects of pollution and preventing or minimizing the 
damage. To this end, States shall jointly develop and 
promote contingency plans for responding to pollution 
incidents in the marine environment.

Article 200

Studies, research programmes and exchange of information 
and data States shall co-operate, directly or through 
competent international organizations, for the purpose 
of promoting studies, undertaking programmes of 
scientific research and encouraging the exchange of 
information and data acquired about pollution of the 
marine environment. They shall endeavour to participate 
actively in regional and global programmes to acquire 
knowledge for the assessment of the nature and extent of 
pollution, exposure to it, and its pathways, risks and 
remedies.

Article 201

Scientific criteria for regulations

In the light of the information and data acquired 
pursuant to article 200, States shall co-operate, 
directly or through competent international 
organizations, in establishing appropriate scientific 
criteria for the formulation and elaboration of rules, 
standards and recommended practices and procedures for 
the prevention, reduction and control of pollution of 
the marine environment.

SECTION 3. TECHNICAL ASSISTANCE

Article 202

Scientific and technical assistance to developing States

States shall, directly or through competent 
international organizations:

(a) promote programmes of scientific, educational, 
technical and other assistance to developing States for 
the protection and preservation of the marine 
environment and the prevention, reduction and control of 
marine pollution. Such assistance shall include, inter 
alia:

(i) training of their scientific and technical 
personnel;

(ii) facilitating their participation in relevant 
international programmes;

(iii) supplying them with necessary equipment and 
facilities; 

(iv) enhancing their capacity to manufacture such 
equipment; 

(v) advice on and developing facilities for research, 
monitoring, educational and other programmes;

(b) provide appropriate assistance, especially to 
developing States, for the minimization of the effects 
of major incidents which may cause serious pollution of 
the marine environment;

(c) provide appropriate assistance, especially to 
developing States, concerning the preparation of 
environmental assessments.

Article 203

Preferential treatment for developing States

Developing States shall, for the purposes of prevention, 
reduction and control of pollution of the marine 
environment or minimization of its effects, be granted 
preference by international organizations in:

(a) the allocation of appropriate funds and technical 
assistances; and

(b) the utilization of their specialized services.

SECTION 4. MONITORING AND ENVIRONMENTAL ASSESSMENT


Article 204

Monitoring of the risks or effects of pollution

1. States shall, consistent with the rights of other 
States, endeavour, as far as practicable, directly or 
through the competent international organizations, to 
observe, measure, evaluate and analyse, by recognized 
scientific methods, the risks or effects of pollution of 
the marine environment.

2. In particular, States shall keep under surveillance 
the effects of any activities which they permit or in 
which they engage in order to determine whether these 
activities are likely to pollute the marine environment.

Article 205

Publication of reports

States shall publish reports of the results obtained 
pursuant to article 204 or provide such reports at 
appropriate intervals to the competent international 
organizations, which should make them available to all 
States.

Article 206

Assessment of potential effects of activities

When States have reasonable grounds for believing that 
planned activities under their jurisdiction or control 
may cause substantial pollution of or significant and 
harmful changes to the marine environment, they shall, 
as far as practicable, assess the potential effects of 
such activities on the marine environment and shall 
communicate reports of the results of such assessments 
in the manner provided in article 205.

SECTION 5. INTERNATIONAL RULES AND NATIONAL LEGISLATION 
TO PREVENT, REDUCE AND CONTROL POLLUTION OF THE MARINE 
ENVIRONMENT

Article 207

Pollution from land-based sources

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from land-based sources, including rivers, estuaries, 
pipelines and outfall structures, taking into account 
internationally agreed rules, standards and recommended 
practices and procedures.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control pollution of the marine 
environment from land-based sources, taking into account 
characteristic regional features, the economic capacity 
of developing States and their need for economic 
development. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

5. Laws, regulations, measures, rules, standards and 
recommended practices and procedures referred to in 
paragraphs 1, 2 and 4 shall include those designed to 
minimize, to the fullest extent possible, the release of 
toxic, harmful or noxious substances, especially those 
which are persistent, into the marine environment.

Article 208

Pollution from sea-bed activities subject to national 
jurisdiction


1. Coastal States shall adopt laws and regulations to 
prevent, reduce and control pollution of the marine 
environment arising from or in connection with sea-bed 
activities subject to their jurisdiction and from 
artificial islands, installations and structures under 
their jurisdiction, pursuant to articles 60 and 80.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall be no less 
effective than international rules, standards and 
recommended practices and procedures.

4. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

5. States, acting especially through competent 
international organizations or diplomatic conference, 
shall establish global and regional rules, standards and 
recommended practices and procedures to prevent, reduce 
and control pollution of the marine environment referred 
to in paragraph 1. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

Article 209

Pollution from activities in the Area

1. International rules, regulations and procedures shall 
be established in accordance with Part XI to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area. Such rules, regulations and 
procedures shall be re-examined from time to time as 
necessary.

2. Subject to the relevant provisions of this section, 
States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area undertaken by vessels, 
installations, structures and other devices flying their 
flag or of their registry or operating under their 
authority, as the case may be. The requirements of such 
laws and regulations shall be no less effective than the 
international rules, regulations and procedures referred 
to in paragraph 1.

Article 210

Pollution by dumping

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
by dumping.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall ensure that 
dumping is not carried out without the permission of the 
competent authorities of States.

4. States, acting especially thro

United Nations Convention on the Law of the Sea




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8. UNITED NATIONS CONVENTION ON THE LAW OF THE SEA

(Montego Bay, 10 December 1982)

The States Parties to this Convention, (...) Recognizing 
the desirability of establishing through this 
Convention, with due regard for the sovereignty of all 
States, a legal order for the seas and oceans which will 
facilitate international communication, and will promote 
the peaceful uses of the seas and oceans, the equitable 
and efficient utilization of their resources, the 
conservation of their living resources, and the study, 
protection and preservation of the marine environment, 
(...)

PART I

INTRODUCTION

Article 1

Use of terms and scope

1. For the purposes of this Convention:

(1) "Area" means the sea-bed and ocean floor and subsoil 
thereof, beyonds the limits of national jurisdiction;
(...)

(4) "pollution of the marine environment" means the 
introduction by man, directly or indirectly, of 
substances or energy into the marine environment, 
including estuaries, which results or is likely to 
result in such deleterious effects as harm to living 
resources and marine life, hazards to human health, 
hindrance to marine activities, including fishing and 
other legitimate uses of the sea, impairment of quality 
for use of sea water and reduction of amenities;

(5) (a) "dumping" means:

(i) any deliberate disposal of wastes or other matter 
from vessels, aircraft, platforms or other man-made 
structures at sea;

(ii) any deliberate disposal of vessels, aircraft, 
platforms or other man-made structures at sea;

(b) "dumping" does not include:

(i) the disposal of wastes or other matter incidental 
to, or derived from the normal operations of vessels, 
aircraft, platforms or other man-made structures at sea 
and their equipment, other than wastes or other matter 
transported by or to vessels, aircraft, platforms or 
other man-made structures at sea, operating for the 
purpose of disposal of such matter or derived from the 
treatment of such wastes or other matter on such 
vessels, aircraft, platforms or structures;

(ii) placement of matter for a purpose other than the 
mere disposal thereof, provided that such placement is 
not contrary to the aims of this Convention.
(...)

PART II

TERRITORIAL SEA AND CONTIGUOUS ZONE

SECTION 3. INNOCENT PASSAGE IN THE TERRITORIAL SEA

Article 19

Meaning of innocent passage

(...)

2. Passage of a foreign ship shall be considered to be 
prejudicial to the peace, good order or security of the 
coastal State if in the territorial seas it engages in 
any of the following activities: (...)

(h)any act of wilful and serious pollution contrary to 
this Convention; (...)

Article 21

Laws and regulations of the coastal State relating to 
innocent passage

1. The coastal State may adopt laws and regulations, in 
conformity with the provisions of this Convention and 
other rules of international law, relating to innocent 
passage through the territorial sea, in respect of all 
or any of the following:

(...)

(f) the preservation of the environment of the coastal 
State and the prevention, reduction and control of 
pollution thereof; (...)

Article 22

Sea lanes and traffic separation schemes in the 
territorial sea

1. The coastal State may, where necessary having regard 
to the safety of navigation, require foreign ships 
exercising the right of innocent passage through its 
territorial sea to use such sea lanes and traffic 
separation schemes as it may designate or prescribe for 
the regulation of the passage of ships.

2. In particular, tankers, nuclear-powered ships and 
ships carrying nuclear or other inherently dangerous or 
noxious substances or materials may be required to 
confine their passage to such sea lanes.

(...)

Article 23

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances 
shall, when exercising the right of innocent passage 
through the territorial sea, carry documents and observe 
special precautionary measures established for such 
ships by international agreements.

(...)

PART III

STRAITS USED FOR INTERNATIONAL NAVIGATION

SECTION 2. TRANSIT PASSAGE

Article 39

Duties of ships and aircraft during transit passage

(...)

2. Ships in transit passage shall:

(...)

(b) comply with generally accepted international 
regulations, procedures and practices for the 
prevention, reduction and control of pollution from 
ships. (...)

Article 42

Laws and regulations of States bordering straits 
relating to transit passage

1. Subject to the provisions of this section, States 
bordering straits may adopt laws and regulations 
relating to transit passage through straits, in respect 
of all or any of the following:

(...)

(b) the prevention, reduction and control of pollution, 
by giving effect to applicable international regulations 
regarding the discharge of oil, oily wastes and other 
noxious substances in the straits;

(...)

Article 43

Navigational and safety aids and other improvements and 
the prevention, reduction and control of pollution

User States and States bordering a strait should by 
agreement co-operate:

(...)

(b) for the prevention, reduction and control of 
pollution from ships.

PART IV

ARCHIPELAGIC STATES

Article 54

Duties of ships and aircraft during their passage, 
research and survey activities, duties of the 
archipelagic State and laws and regulations of the 
archipelagic State relating to archipelagic sea lanes 
passage Articles 39, 40, 42 and 44 apply mutatis 
mutandis to archipelagic sea lanes passage.

PART V

EXCLUSIVE ECONOMIC ZONE

Article 56

Rights, jurisdiction and duties of the coastal State in 
the exclusive economic zone 

1. In the exclusive economic zone, the coastal State 
has:

(...)

(b) jurisdiction as provided for in the relevant 
provisions of this Convention with regard to:

(...)

(iii) the protection and preservation of the marine 
environment; (...)

Article 60

Artificial islands, installations and structures in the 
exclusive economic zone

(...)

3. Due notice must be given of the construction of such 
artificial islands, installations or structures, and 
permanent means for giving warning of their presence 
must be maintained. Any installations or structures 
which are abandoned or disused shall be removed to 
ensure safety of navigation, taking into account any 
generally accepted international standards established 
in this regard by the competent international 
organization. Such removal shall also have due regard to 
fishing, the protection of the marine environment and 
the rights and duties of other States. Appropriate 
publicity shall be given to the depth, position and 
dimensions of any installations or structures not 
entirely removed.

(...)

Article 65

Marine mammals

Nothing in this Part restricts the right of a coastal 
State or the competence of an international 
organization, as appropriate, to prohibit, limit or 
regulate the exploitation of marine mammals more 
strictly than provided for in this Part. States shall 
co-operate with a view to the conservation of marine 
mammals and in the case of cetaceans shall in particular 
work through the appropriate international organizations 
for their conservation, management and study.

PART VI

CONTINENTAL SHELF

Article 79

Submarine cables and pipelines on the continental shelf

(...)

2. Subject to its right to take reasonable measures for 
the exploration of the continental shelf, the 
exploitation of its natural resources and the 
prevention, reduction and control of pollution from 
pipelines, the coastal State may not impede the laying 
or maintenance of such cables or pipelines.

(...)

Article 80

Artificial islands, installations and structures on the 
continental shelf

Article 60 applies mutatis mutandis to artificial 
islands, installations and structures on the continental 
shelf.

PART VII

HIGH SEAS

SECTION 1. GENERAL PROVISIONS

Article 94

Duties of the flag State

(...)

7. Each State shall cause an inquiry to be held by or 
before a suitably qualified person or persons into every 
marine casualty or incident of navigation on the high 
seas involving a ship flying its flag and causing loss 
of life or serious injury to nationals of another state 
or serious damage to ships or installations of another 
State or to the marine environment. The flag State and 
the other State shall co-operate in the conduct of any 
inquiry held by that other State into any such marine 
casualty or incident of navigation.

SECTION 2. CONSERVATION AND MANAGEMENT OF THE LIVING 
RESOURCES OF THE HIGH SEAS

Article 120

Marine mammals

Article 65 also applies to the conservation and 
management of marine mammals in the high seas.


PART IX ENCLOSED OR SEMI-ENCLOSED SEAS

Article 123

Co-operation of States bordering enclosed or semi-
enclosed seas

States bordering an enclosed or semi-enclosed sea should 
co-operate with each other in the exercise of their 
rights and in the performance of their duties under this 
Convention. To this end they shall endeavour, directly 
or through an appropriate regional organization:

(...)

(b) to co-ordinate the implementation of their rights 
and duties with respect to the protection and 
preservation of the marine environment;

(...)


PART XI

THE AREA

SECTION 2. PRINCIPLES GOVERNING THE AREA

Article 142

Rights and legitimate interests of coastal States

(...)

3. Neither this Part nor any rights granted or exercised 
pursuant thereto shall affect the rights of coastal 
States to take such measures consistent with the 
relevant provisions of Part XII as may be necessary to 
prevent, mitigate or eliminate grave and imminent danger 
to their coastline, or related interests from pollution 
or threat thereof or from other hazardous occurrences 
resulting from or caused by any activities in the Area.


Article 145

Protection of the marine environment

Necessary measures shall be taken in accordance with 
this Convention with respect to activities in the Area 
to ensure effective protection for the marine 
environment from harmful effects which may arise from 
such activities. To this end the Authority shall adopt 
appropriate rules, regulations and procedures for inter 
alia:

(a) the prevention, reduction and control of pollution 
and other hazards to the marine environment, including 
the coastline, and of interference with the ecological 
balance of the marine environment, particular attention 
being paid to the need for protection from harmful 
effects of such activities as drilling, dredging, 
excavation, disposal of waste, construction and 
operation or maintenance of installations, pipelines and 
other devices related to such activities;

(b) the protection and conservation of the natural 
resources of the Area and the prevention of damage to 
the flora and fauna of the marine environment.

SECTION 4. THE AUTHORITY

SUBSECTION C. THE COUNCIL

Article 162

Powers and functions

(...)

2. In addition, the Council shall:

(...)

(w) issue emergency orders, which may include orders for 
the suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area;

(x) disapprove areas for exploitation by contractors or 
the Enterprise in cases where substantial evidence 
indicates the risk of serious harm to the marine 
environment;

(...)

Article 165

The Legal and Technical Commission

1. Members of the Legal and Technical Commission shall 
have appropriate qualifications such as those relevant 
to exploration for and exploitation and processing of 
mineral resources, oceanology, protection of the marine 
environment, or economic or legal matters relating to 
ocean mining and related fields of expertise. The 
Council shall endeavour to ensure that the membership of 
the Commission reflects all appropriate qualifications.

2. The Commission shall:

(...)

(e) make recommendations to the Council on the 
protection of the marine environment, taking into 
account the views of recognized experts in that field;

(f) formulate and submit to the Council the rules, 
regulations and procedures referred to in article 162, 
paragraph 2(o), taking into account all relevant factors 
including assessments of the environmental implications 
of activities in the Area;

(...)

(h) make recommendations to the Council regarding the 
establishment of a monitoring programme to observe, 
measure, evaluate and analyse, by recognized scientific 
methods, on a regular basis, the risks or effects of 
pollution of the marine environment resulting from 
activities in the Area, ensure that existing regulations 
are adequate and are complied with and co-ordinate the 
implementation of the monitoring programme approved by 
the Council;

(...)

(k) make recommendations to the Council to issue 
emergency orders, which may include orders for the 
suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area. Such recommendations shall be 
taken up by the Council on a priority basis;

(l) make recommendations to the Council to disapprove 
areas for exploitation by contractors or the Enterprise 
in cases where substantial evidence indicates the risk 
of serious harm to the marine environment;

(...)

PART XII

PROTECTION AND PRESERVATION OF THE MARINE ENVIRONMENT
SECTION 1. GENERAL PROVISIONS

Article 192

General obligation

States have the obligation to protect and preserve the 
marine environment.

Article 193

Sovereign right of States to exploit their natural 
resources

States have the sovereign right to exploit their natural 
resources pursuant to their environmental policies and 
in accordance with their duty to protect and preserve 
the marine environment.

Article 194

Measures to prevent, reduce and control pollution of the 
marine environment

1. States shall take, individually or jointly as 
appropriate, all measures consistent with this 
Convention that are necessary to prevent, reduce and 
control pollution of the marine environment from any 
source, using for this purpose the best practicable 
means at their disposal and in accordance with their 
capabilities, and they shall endeavour to harmonize 
their policies in this connection.

2. States shall take all measures necessary to ensure 
that activities under their jurisdiction or control are 
so conducted as not to cause damage by pollution to 
other States and their environment, and that pollution 
arising from incidents or activities under their 
jurisdiction or control does not spread beyond the areas 
where they exercise sovereign rights in accordance with 
this Convention. 3. The measures taken pursuant to this 
Part shall deal with all sources of pollution of the 
marine environment. These measures shall include, inter 
alia, those designed to minimize to the fullest possible 
extent:

(a) the release of toxic, harmful or noxious substances, 
especially those which are persistent, from land-based 
sources, from or through the atmosphere or by dumping;

(b) pollution from vessels, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, preventing 
intentional and unintentional discharges, and regulating 
the design, construction, equipment, operation and 
manning of vessels;

(c) pollution from installations and devices used in 
exploration or exploitation of the natural resources of 
the sea-bed and subsoil, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, and regulating 
the design, construction, equipment, operation and 
manning of such installations or devices;

(d) pollution from other installations and devices 
operating in the marine environment, in particular 
measures for preventing accidents and dealing with 
emergencies, ensuring the safety of operations at sea, 
and regulating the design, construction, equipment, 
operation and manning of such installations or devices.

4. In taking measures to prevent, reduce or control 
pollution of the marine environment, States shall 
refrain from unjustifiable interference with activities 
carried out by other States in the exercise of their 
rights and in pursuance of their duties in conformity 
with this Convention.

5. The measures taken in accordance with this Part shall 
include those necessary to protect and preserve rare or 
fragile ecosystems as well as the habitat of depleted, 
threatened or endangered species and other forms of 
marine life.

Article 195

Duty not to transfer damage or hazards or transform one 
type of pollution into another In taking measures to 
prevent, reduce and control pollution of the marine 
environment, States shall act so as not to transfer, 
directly or indirectly, damage or hazards from one area 
to another or transform one type of pollution into 
another.

Article 196

Use of technologies or introduction of alien or new 
species

1. States shall take all measures necessary to prevent, 
reduce and control pollution of the marine environment 
resulting from the use of technologies under their 
jurisdiction or control, or the intentional or 
accidental introduction of species, alien or new, to a 
particular part of the marine environment, which may 
cause significant and harmful changes thereto.

2. This article does not affect the application of this 
Convention regarding the prevention, reduction and 
control of pollution of the marine environment.

SECTION 2. GLOBAL AND REGIONAL CO-OPERATION

Article 197

Co-operation on a global or regional basis

States shall co-operate on a global basis and, as 
appropriate, on a regional basis, directly or through 
competent international organizations, in formulating 
and elaborating international rules, standards and 
recommended practices and procedures consistent 
with this Convention, for the protection and 
preservation of the marine environment, taking into 
account characteristic regional features.

Article 198

Notification of imminent or actual damage

When a State becomes aware of cases in which the marine 
environment is in imminent danger of being damaged or 
has been damaged by pollution, it shall immediately 
notify other States it deems likely to be affected by 
such damage, as well as the competent international 
organizations.

Article 199

Contingency plans against pollution

In the cases referred to in article 198, States in the 
area affected, in accordance with their capabilities, 
and the competent international organizations shall co-
operate, to the extent possible, in eliminating the 
effects of pollution and preventing or minimizing the 
damage. To this end, States shall jointly develop and 
promote contingency plans for responding to pollution 
incidents in the marine environment.

Article 200

Studies, research programmes and exchange of information 
and data States shall co-operate, directly or through 
competent international organizations, for the purpose 
of promoting studies, undertaking programmes of 
scientific research and encouraging the exchange of 
information and data acquired about pollution of the 
marine environment. They shall endeavour to participate 
actively in regional and global programmes to acquire 
knowledge for the assessment of the nature and extent of 
pollution, exposure to it, and its pathways, risks and 
remedies.

Article 201

Scientific criteria for regulations

In the light of the information and data acquired 
pursuant to article 200, States shall co-operate, 
directly or through competent international 
organizations, in establishing appropriate scientific 
criteria for the formulation and elaboration of rules, 
standards and recommended practices and procedures for 
the prevention, reduction and control of pollution of 
the marine environment.

SECTION 3. TECHNICAL ASSISTANCE

Article 202

Scientific and technical assistance to developing States

States shall, directly or through competent 
international organizations:

(a) promote programmes of scientific, educational, 
technical and other assistance to developing States for 
the protection and preservation of the marine 
environment and the prevention, reduction and control of 
marine pollution. Such assistance shall include, inter 
alia:

(i) training of their scientific and technical 
personnel;

(ii) facilitating their participation in relevant 
international programmes;

(iii) supplying them with necessary equipment and 
facilities; 

(iv) enhancing their capacity to manufacture such 
equipment; 

(v) advice on and developing facilities for research, 
monitoring, educational and other programmes;

(b) provide appropriate assistance, especially to 
developing States, for the minimization of the effects 
of major incidents which may cause serious pollution of 
the marine environment;

(c) provide appropriate assistance, especially to 
developing States, concerning the preparation of 
environmental assessments.

Article 203

Preferential treatment for developing States

Developing States shall, for the purposes of prevention, 
reduction and control of pollution of the marine 
environment or minimization of its effects, be granted 
preference by international organizations in:

(a) the allocation of appropriate funds and technical 
assistances; and

(b) the utilization of their specialized services.

SECTION 4. MONITORING AND ENVIRONMENTAL ASSESSMENT


Article 204

Monitoring of the risks or effects of pollution

1. States shall, consistent with the rights of other 
States, endeavour, as far as practicable, directly or 
through the competent international organizations, to 
observe, measure, evaluate and analyse, by recognized 
scientific methods, the risks or effects of pollution of 
the marine environment.

2. In particular, States shall keep under surveillance 
the effects of any activities which they permit or in 
which they engage in order to determine whether these 
activities are likely to pollute the marine environment.

Article 205

Publication of reports

States shall publish reports of the results obtained 
pursuant to article 204 or provide such reports at 
appropriate intervals to the competent international 
organizations, which should make them available to all 
States.

Article 206

Assessment of potential effects of activities

When States have reasonable grounds for believing that 
planned activities under their jurisdiction or control 
may cause substantial pollution of or significant and 
harmful changes to the marine environment, they shall, 
as far as practicable, assess the potential effects of 
such activities on the marine environment and shall 
communicate reports of the results of such assessments 
in the manner provided in article 205.

SECTION 5. INTERNATIONAL RULES AND NATIONAL LEGISLATION 
TO PREVENT, REDUCE AND CONTROL POLLUTION OF THE MARINE 
ENVIRONMENT

Article 207

Pollution from land-based sources

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from land-based sources, including rivers, estuaries, 
pipelines and outfall structures, taking into account 
internationally agreed rules, standards and recommended 
practices and procedures.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control pollution of the marine 
environment from land-based sources, taking into account 
characteristic regional features, the economic capacity 
of developing States and their need for economic 
development. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

5. Laws, regulations, measures, rules, standards and 
recommended practices and procedures referred to in 
paragraphs 1, 2 and 4 shall include those designed to 
minimize, to the fullest extent possible, the release of 
toxic, harmful or noxious substances, especially those 
which are persistent, into the marine environment.

Article 208

Pollution from sea-bed activities subject to national 
jurisdiction


1. Coastal States shall adopt laws and regulations to 
prevent, reduce and control pollution of the marine 
environment arising from or in connection with sea-bed 
activities subject to their jurisdiction and from 
artificial islands, installations and structures under 
their jurisdiction, pursuant to articles 60 and 80.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall be no less 
effective than international rules, standards and 
recommended practices and procedures.

4. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

5. States, acting especially through competent 
international organizations or diplomatic conference, 
shall establish global and regional rules, standards and 
recommended practices and procedures to prevent, reduce 
and control pollution of the marine environment referred 
to in paragraph 1. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

Article 209

Pollution from activities in the Area

1. International rules, regulations and procedures shall 
be established in accordance with Part XI to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area. Such rules, regulations and 
procedures shall be re-examined from time to time as 
necessary.

2. Subject to the relevant provisions of this section, 
States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area undertaken by vessels, 
installations, structures and other devices flying their 
flag or of their registry or operating under their 
authority, as the case may be. The requirements of such 
laws and regulations shall be no less effective than the 
international rules, regulations and procedures referred 
to in paragraph 1.

Article 210

Pollution by dumping

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
by dumping.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall ensure that 
dumping is not carried out without the permission of the 
competent authorities of States.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control such pollution. Such rules, 
standards and recommended practices and procedures shall 
be re-examined from time to time as necessary.

5. Dumping within the territorial sea and the exclusive 
economic zone or onto the continental shelf shall not be 
carried out without the express prior approval of the 
coastal State, which has the right to permit, regulate 
and control such dumping after due consideration of the 
matter with other States which by reason of their 
geographical situation may be adversely affected 
thereby.

6. National laws, regulations and measures shall be no 
less effective in preventing, reducing and controlling 
such pollution than the global rules and standards.

Article 211

Pollution from vessels

1. States, acting through the competent international 
organization or general diplomatic conference, shall 
establish international rules and standards to prevent, 
reduce and control pollution of the marine environment 
from vessels and promote the adoption, in the same 
manner, wherever appropriate, of routeing systems 
designed to minimize the threat of accidents which might 
cause pollution of the marine environment, including the 
coastline, and pollution damage to the related interests 
of coastal States. Such rules and standards shall, in 
the same manner, be re-examined from time to time as 
necessary.

2. States shall adopt laws and regulations for the 
prevention, reduction and control of pollution of the 
marine environment from vessels flying their flag or of 
their registry. Such laws and regulations shall at least 
have the same effect as that of generally accepted 
international rules and standards established through 
the competent international organization or general 
diplomatic conference.

3. States which establish particular requirements for 
the prevention, reduction and control of pollution of 
the marine environment as a condition for the entry of 
foreign vessels into their ports or internal waters or 
for a call at their off-shore terminals shall give due 
publicity to such requirements and shall communicate 
them to the competent international organization. 
Whenever such requirements are established in identical 
form by two or more coastal States in an endeavour to 
harmonize policy, the communication shall indicate which 
States are participating in such co-operative 
arrangements. Every State shall require the master of a 
vessel flying its flag or of its registry, when 
navigating within the territorial sea of a State 
participating in such co-operative arrangements, to 
furnish, upon the request of that State, information as 
to whether it is proceeding to a State of the same 
region participating in such co-operative arrangements 
and, if so, to indicate whether it complies with the 
port entry requirements of that State. This article is 
without prejudice to the continued exercise by a vessel 
of its right of innocent passage or to the application 
of article 25, paragraph 2.

4. Coastal States may, in the exercise of their 
sovereignty within their territorial sea, adopt laws and 
regulations for the prevention, reduction and control of 
marine pollution from foreign vessels, including vessels 
exercising the right of innocent passage. Such laws and 
regulations shall, in accordance with Part II, section 
3, not hamper innocent passage of foreign vessels.

5. Coastal States, for the purpose of enforcement as 
provided for in section 6, may in respect of their 
exclusive economic zones adopt laws and regulations for 
the prevention, reduction and control of pollution from 
vessels conforming to and giving effect to generally 
accepted international rules and standards established 
through the competent international organization or 
general diplomatic conference.

6. (a) Where the international rules and standards 
referred to in paragraph 1 are inadequate to mee

United Nations Convention on the Law of the Sea




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8. UNITED NATIONS CONVENTION ON THE LAW OF THE SEA

(Montego Bay, 10 December 1982)

The States Parties to this Convention, (...) Recognizing 
the desirability of establishing through this 
Convention, with due regard for the sovereignty of all 
States, a legal order for the seas and oceans which will 
facilitate international communication, and will promote 
the peaceful uses of the seas and oceans, the equitable 
and efficient utilization of their resources, the 
conservation of their living resources, and the study, 
protection and preservation of the marine environment, 
(...)

PART I

INTRODUCTION

Article 1

Use of terms and scope

1. For the purposes of this Convention:

(1) "Area" means the sea-bed and ocean floor and subsoil 
thereof, beyonds the limits of national jurisdiction;
(...)

(4) "pollution of the marine environment" means the 
introduction by man, directly or indirectly, of 
substances or energy into the marine environment, 
including estuaries, which results or is likely to 
result in such deleterious effects as harm to living 
resources and marine life, hazards to human health, 
hindrance to marine activities, including fishing and 
other legitimate uses of the sea, impairment of quality 
for use of sea water and reduction of amenities;

(5) (a) "dumping" means:

(i) any deliberate disposal of wastes or other matter 
from vessels, aircraft, platforms or other man-made 
structures at sea;

(ii) any deliberate disposal of vessels, aircraft, 
platforms or other man-made structures at sea;

(b) "dumping" does not include:

(i) the disposal of wastes or other matter incidental 
to, or derived from the normal operations of vessels, 
aircraft, platforms or other man-made structures at sea 
and their equipment, other than wastes or other matter 
transported by or to vessels, aircraft, platforms or 
other man-made structures at sea, operating for the 
purpose of disposal of such matter or derived from the 
treatment of such wastes or other matter on such 
vessels, aircraft, platforms or structures;

(ii) placement of matter for a purpose other than the 
mere disposal thereof, provided that such placement is 
not contrary to the aims of this Convention.
(...)

PART II

TERRITORIAL SEA AND CONTIGUOUS ZONE

SECTION 3. INNOCENT PASSAGE IN THE TERRITORIAL SEA

Article 19

Meaning of innocent passage

(...)

2. Passage of a foreign ship shall be considered to be 
prejudicial to the peace, good order or security of the 
coastal State if in the territorial seas it engages in 
any of the following activities: (...)

(h)any act of wilful and serious pollution contrary to 
this Convention; (...)

Article 21

Laws and regulations of the coastal State relating to 
innocent passage

1. The coastal State may adopt laws and regulations, in 
conformity with the provisions of this Convention and 
other rules of international law, relating to innocent 
passage through the territorial sea, in respect of all 
or any of the following:

(...)

(f) the preservation of the environment of the coastal 
State and the prevention, reduction and control of 
pollution thereof; (...)

Article 22

Sea lanes and traffic separation schemes in the 
territorial sea

1. The coastal State may, where necessary having regard 
to the safety of navigation, require foreign ships 
exercising the right of innocent passage through its 
territorial sea to use such sea lanes and traffic 
separation schemes as it may designate or prescribe for 
the regulation of the passage of ships.

2. In particular, tankers, nuclear-powered ships and 
ships carrying nuclear or other inherently dangerous or 
noxious substances or materials may be required to 
confine their passage to such sea lanes.

(...)

Article 23

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances 
shall, when exercising the right of innocent passage 
through the territorial sea, carry documents and observe 
special precautionary measures established for such 
ships by international agreements.

(...)

PART III

STRAITS USED FOR INTERNATIONAL NAVIGATION

SECTION 2. TRANSIT PASSAGE

Article 39

Duties of ships and aircraft during transit passage

(...)

2. Ships in transit passage shall:

(...)

(b) comply with generally accepted international 
regulations, procedures and practices for the 
prevention, reduction and control of pollution from 
ships. (...)

Article 42

Laws and regulations of States bordering straits 
relating to transit passage

1. Subject to the provisions of this section, States 
bordering straits may adopt laws and regulations 
relating to transit passage through straits, in respect 
of all or any of the following:

(...)

(b) the prevention, reduction and control of pollution, 
by giving effect to applicable international regulations 
regarding the discharge of oil, oily wastes and other 
noxious substances in the straits;

(...)

Article 43

Navigational and safety aids and other improvements and 
the prevention, reduction and control of pollution

User States and States bordering a strait should by 
agreement co-operate:

(...)

(b) for the prevention, reduction and control of 
pollution from ships.

PART IV

ARCHIPELAGIC STATES

Article 54

Duties of ships and aircraft during their passage, 
research and survey activities, duties of the 
archipelagic State and laws and regulations of the 
archipelagic State relating to archipelagic sea lanes 
passage Articles 39, 40, 42 and 44 apply mutatis 
mutandis to archipelagic sea lanes passage.

PART V

EXCLUSIVE ECONOMIC ZONE

Article 56

Rights, jurisdiction and duties of the coastal State in 
the exclusive economic zone 

1. In the exclusive economic zone, the coastal State 
has:

(...)

(b) jurisdiction as provided for in the relevant 
provisions of this Convention with regard to:

(...)

(iii) the protection and preservation of the marine 
environment; (...)

Article 60

Artificial islands, installations and structures in the 
exclusive economic zone

(...)

3. Due notice must be given of the construction of such 
artificial islands, installations or structures, and 
permanent means for giving warning of their presence 
must be maintained. Any installations or structures 
which are abandoned or disused shall be removed to 
ensure safety of navigation, taking into account any 
generally accepted international standards established 
in this regard by the competent international 
organization. Such removal shall also have due regard to 
fishing, the protection of the marine environment and 
the rights and duties of other States. Appropriate 
publicity shall be given to the depth, position and 
dimensions of any installations or structures not 
entirely removed.

(...)

Article 65

Marine mammals

Nothing in this Part restricts the right of a coastal 
State or the competence of an international 
organization, as appropriate, to prohibit, limit or 
regulate the exploitation of marine mammals more 
strictly than provided for in this Part. States shall 
co-operate with a view to the conservation of marine 
mammals and in the case of cetaceans shall in particular 
work through the appropriate international organizations 
for their conservation, management and study.

PART VI

CONTINENTAL SHELF

Article 79

Submarine cables and pipelines on the continental shelf

(...)

2. Subject to its right to take reasonable measures for 
the exploration of the continental shelf, the 
exploitation of its natural resources and the 
prevention, reduction and control of pollution from 
pipelines, the coastal State may not impede the laying 
or maintenance of such cables or pipelines.

(...)

Article 80

Artificial islands, installations and structures on the 
continental shelf

Article 60 applies mutatis mutandis to artificial 
islands, installations and structures on the continental 
shelf.

PART VII

HIGH SEAS

SECTION 1. GENERAL PROVISIONS

Article 94

Duties of the flag State

(...)

7. Each State shall cause an inquiry to be held by or 
before a suitably qualified person or persons into every 
marine casualty or incident of navigation on the high 
seas involving a ship flying its flag and causing loss 
of life or serious injury to nationals of another state 
or serious damage to ships or installations of another 
State or to the marine environment. The flag State and 
the other State shall co-operate in the conduct of any 
inquiry held by that other State into any such marine 
casualty or incident of navigation.

SECTION 2. CONSERVATION AND MANAGEMENT OF THE LIVING 
RESOURCES OF THE HIGH SEAS

Article 120

Marine mammals

Article 65 also applies to the conservation and 
management of marine mammals in the high seas.


PART IX ENCLOSED OR SEMI-ENCLOSED SEAS

Article 123

Co-operation of States bordering enclosed or semi-
enclosed seas

States bordering an enclosed or semi-enclosed sea should 
co-operate with each other in the exercise of their 
rights and in the performance of their duties under this 
Convention. To this end they shall endeavour, directly 
or through an appropriate regional organization:

(...)

(b) to co-ordinate the implementation of their rights 
and duties with respect to the protection and 
preservation of the marine environment;

(...)


PART XI

THE AREA

SECTION 2. PRINCIPLES GOVERNING THE AREA

Article 142

Rights and legitimate interests of coastal States

(...)

3. Neither this Part nor any rights granted or exercised 
pursuant thereto shall affect the rights of coastal 
States to take such measures consistent with the 
relevant provisions of Part XII as may be necessary to 
prevent, mitigate or eliminate grave and imminent danger 
to their coastline, or related interests from pollution 
or threat thereof or from other hazardous occurrences 
resulting from or caused by any activities in the Area.


Article 145

Protection of the marine environment

Necessary measures shall be taken in accordance with 
this Convention with respect to activities in the Area 
to ensure effective protection for the marine 
environment from harmful effects which may arise from 
such activities. To this end the Authority shall adopt 
appropriate rules, regulations and procedures for inter 
alia:

(a) the prevention, reduction and control of pollution 
and other hazards to the marine environment, including 
the coastline, and of interference with the ecological 
balance of the marine environment, particular attention 
being paid to the need for protection from harmful 
effects of such activities as drilling, dredging, 
excavation, disposal of waste, construction and 
operation or maintenance of installations, pipelines and 
other devices related to such activities;

(b) the protection and conservation of the natural 
resources of the Area and the prevention of damage to 
the flora and fauna of the marine environment.

SECTION 4. THE AUTHORITY

SUBSECTION C. THE COUNCIL

Article 162

Powers and functions

(...)

2. In addition, the Council shall:

(...)

(w) issue emergency orders, which may include orders for 
the suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area;

(x) disapprove areas for exploitation by contractors or 
the Enterprise in cases where substantial evidence 
indicates the risk of serious harm to the marine 
environment;

(...)

Article 165

The Legal and Technical Commission

1. Members of the Legal and Technical Commission shall 
have appropriate qualifications such as those relevant 
to exploration for and exploitation and processing of 
mineral resources, oceanology, protection of the marine 
environment, or economic or legal matters relating to 
ocean mining and related fields of expertise. The 
Council shall endeavour to ensure that the membership of 
the Commission reflects all appropriate qualifications.

2. The Commission shall:

(...)

(e) make recommendations to the Council on the 
protection of the marine environment, taking into 
account the views of recognized experts in that field;

(f) formulate and submit to the Council the rules, 
regulations and procedures referred to in article 162, 
paragraph 2(o), taking into account all relevant factors 
including assessments of the environmental implications 
of activities in the Area;

(...)

(h) make recommendations to the Council regarding the 
establishment of a monitoring programme to observe, 
measure, evaluate and analyse, by recognized scientific 
methods, on a regular basis, the risks or effects of 
pollution of the marine environment resulting from 
activities in the Area, ensure that existing regulations 
are adequate and are complied with and co-ordinate the 
implementation of the monitoring programme approved by 
the Council;

(...)

(k) make recommendations to the Council to issue 
emergency orders, which may include orders for the 
suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area. Such recommendations shall be 
taken up by the Council on a priority basis;

(l) make recommendations to the Council to disapprove 
areas for exploitation by contractors or the Enterprise 
in cases where substantial evidence indicates the risk 
of serious harm to the marine environment;

(...)

PART XII

PROTECTION AND PRESERVATION OF THE MARINE ENVIRONMENT
SECTION 1. GENERAL PROVISIONS

Article 192

General obligation

States have the obligation to protect and preserve the 
marine environment.

Article 193

Sovereign right of States to exploit their natural 
resources

States have the sovereign right to exploit their natural 
resources pursuant to their environmental policies and 
in accordance with their duty to protect and preserve 
the marine environment.

Article 194

Measures to prevent, reduce and control pollution of the 
marine environment

1. States shall take, individually or jointly as 
appropriate, all measures consistent with this 
Convention that are necessary to prevent, reduce and 
control pollution of the marine environment from any 
source, using for this purpose the best practicable 
means at their disposal and in accordance with their 
capabilities, and they shall endeavour to harmonize 
their policies in this connection.

2. States shall take all measures necessary to ensure 
that activities under their jurisdiction or control are 
so conducted as not to cause damage by pollution to 
other States and their environment, and that pollution 
arising from incidents or activities under their 
jurisdiction or control does not spread beyond the areas 
where they exercise sovereign rights in accordance with 
this Convention. 3. The measures taken pursuant to this 
Part shall deal with all sources of pollution of the 
marine environment. These measures shall include, inter 
alia, those designed to minimize to the fullest possible 
extent:

(a) the release of toxic, harmful or noxious substances, 
especially those which are persistent, from land-based 
sources, from or through the atmosphere or by dumping;

(b) pollution from vessels, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, preventing 
intentional and unintentional discharges, and regulating 
the design, construction, equipment, operation and 
manning of vessels;

(c) pollution from installations and devices used in 
exploration or exploitation of the natural resources of 
the sea-bed and subsoil, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, and regulating 
the design, construction, equipment, operation and 
manning of such installations or devices;

(d) pollution from other installations and devices 
operating in the marine environment, in particular 
measures for preventing accidents and dealing with 
emergencies, ensuring the safety of operations at sea, 
and regulating the design, construction, equipment, 
operation and manning of such installations or devices.

4. In taking measures to prevent, reduce or control 
pollution of the marine environment, States shall 
refrain from unjustifiable interference with activities 
carried out by other States in the exercise of their 
rights and in pursuance of their duties in conformity 
with this Convention.

5. The measures taken in accordance with this Part shall 
include those necessary to protect and preserve rare or 
fragile ecosystems as well as the habitat of depleted, 
threatened or endangered species and other forms of 
marine life.

Article 195

Duty not to transfer damage or hazards or transform one 
type of pollution into another In taking measures to 
prevent, reduce and control pollution of the marine 
environment, States shall act so as not to transfer, 
directly or indirectly, damage or hazards from one area 
to another or transform one type of pollution into 
another.

Article 196

Use of technologies or introduction of alien or new 
species

1. States shall take all measures necessary to prevent, 
reduce and control pollution of the marine environment 
resulting from the use of technologies under their 
jurisdiction or control, or the intentional or 
accidental introduction of species, alien or new, to a 
particular part of the marine environment, which may 
cause significant and harmful changes thereto.

2. This article does not affect the application of this 
Convention regarding the prevention, reduction and 
control of pollution of the marine environment.

SECTION 2. GLOBAL AND REGIONAL CO-OPERATION

Article 197

Co-operation on a global or regional basis

States shall co-operate on a global basis and, as 
appropriate, on a regional basis, directly or through 
competent international organizations, in formulating 
and elaborating international rules, standards and 
recommended practices and procedures consistent 
with this Convention, for the protection and 
preservation of the marine environment, taking into 
account characteristic regional features.

Article 198

Notification of imminent or actual damage

When a State becomes aware of cases in which the marine 
environment is in imminent danger of being damaged or 
has been damaged by pollution, it shall immediately 
notify other States it deems likely to be affected by 
such damage, as well as the competent international 
organizations.

Article 199

Contingency plans against pollution

In the cases referred to in article 198, States in the 
area affected, in accordance with their capabilities, 
and the competent international organizations shall co-
operate, to the extent possible, in eliminating the 
effects of pollution and preventing or minimizing the 
damage. To this end, States shall jointly develop and 
promote contingency plans for responding to pollution 
incidents in the marine environment.

Article 200

Studies, research programmes and exchange of information 
and data States shall co-operate, directly or through 
competent international organizations, for the purpose 
of promoting studies, undertaking programmes of 
scientific research and encouraging the exchange of 
information and data acquired about pollution of the 
marine environment. They shall endeavour to participate 
actively in regional and global programmes to acquire 
knowledge for the assessment of the nature and extent of 
pollution, exposure to it, and its pathways, risks and 
remedies.

Article 201

Scientific criteria for regulations

In the light of the information and data acquired 
pursuant to article 200, States shall co-operate, 
directly or through competent international 
organizations, in establishing appropriate scientific 
criteria for the formulation and elaboration of rules, 
standards and recommended practices and procedures for 
the prevention, reduction and control of pollution of 
the marine environment.

SECTION 3. TECHNICAL ASSISTANCE

Article 202

Scientific and technical assistance to developing States

States shall, directly or through competent 
international organizations:

(a) promote programmes of scientific, educational, 
technical and other assistance to developing States for 
the protection and preservation of the marine 
environment and the prevention, reduction and control of 
marine pollution. Such assistance shall include, inter 
alia:

(i) training of their scientific and technical 
personnel;

(ii) facilitating their participation in relevant 
international programmes;

(iii) supplying them with necessary equipment and 
facilities; 

(iv) enhancing their capacity to manufacture such 
equipment; 

(v) advice on and developing facilities for research, 
monitoring, educational and other programmes;

(b) provide appropriate assistance, especially to 
developing States, for the minimization of the effects 
of major incidents which may cause serious pollution of 
the marine environment;

(c) provide appropriate assistance, especially to 
developing States, concerning the preparation of 
environmental assessments.

Article 203

Preferential treatment for developing States

Developing States shall, for the purposes of prevention, 
reduction and control of pollution of the marine 
environment or minimization of its effects, be granted 
preference by international organizations in:

(a) the allocation of appropriate funds and technical 
assistances; and

(b) the utilization of their specialized services.

SECTION 4. MONITORING AND ENVIRONMENTAL ASSESSMENT


Article 204

Monitoring of the risks or effects of pollution

1. States shall, consistent with the rights of other 
States, endeavour, as far as practicable, directly or 
through the competent international organizations, to 
observe, measure, evaluate and analyse, by recognized 
scientific methods, the risks or effects of pollution of 
the marine environment.

2. In particular, States shall keep under surveillance 
the effects of any activities which they permit or in 
which they engage in order to determine whether these 
activities are likely to pollute the marine environment.

Article 205

Publication of reports

States shall publish reports of the results obtained 
pursuant to article 204 or provide such reports at 
appropriate intervals to the competent international 
organizations, which should make them available to all 
States.

Article 206

Assessment of potential effects of activities

When States have reasonable grounds for believing that 
planned activities under their jurisdiction or control 
may cause substantial pollution of or significant and 
harmful changes to the marine environment, they shall, 
as far as practicable, assess the potential effects of 
such activities on the marine environment and shall 
communicate reports of the results of such assessments 
in the manner provided in article 205.

SECTION 5. INTERNATIONAL RULES AND NATIONAL LEGISLATION 
TO PREVENT, REDUCE AND CONTROL POLLUTION OF THE MARINE 
ENVIRONMENT

Article 207

Pollution from land-based sources

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from land-based sources, including rivers, estuaries, 
pipelines and outfall structures, taking into account 
internationally agreed rules, standards and recommended 
practices and procedures.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control pollution of the marine 
environment from land-based sources, taking into account 
characteristic regional features, the economic capacity 
of developing States and their need for economic 
development. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

5. Laws, regulations, measures, rules, standards and 
recommended practices and procedures referred to in 
paragraphs 1, 2 and 4 shall include those designed to 
minimize, to the fullest extent possible, the release of 
toxic, harmful or noxious substances, especially those 
which are persistent, into the marine environment.

Article 208

Pollution from sea-bed activities subject to national 
jurisdiction


1. Coastal States shall adopt laws and regulations to 
prevent, reduce and control pollution of the marine 
environment arising from or in connection with sea-bed 
activities subject to their jurisdiction and from 
artificial islands, installations and structures under 
their jurisdiction, pursuant to articles 60 and 80.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall be no less 
effective than international rules, standards and 
recommended practices and procedures.

4. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

5. States, acting especially through competent 
international organizations or diplomatic conference, 
shall establish global and regional rules, standards and 
recommended practices and procedures to prevent, reduce 
and control pollution of the marine environment referred 
to in paragraph 1. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

Article 209

Pollution from activities in the Area

1. International rules, regulations and procedures shall 
be established in accordance with Part XI to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area. Such rules, regulations and 
procedures shall be re-examined from time to time as 
necessary.

2. Subject to the relevant provisions of this section, 
States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area undertaken by vessels, 
installations, structures and other devices flying their 
flag or of their registry or operating under their 
authority, as the case may be. The requirements of such 
laws and regulations shall be no less effective than the 
international rules, regulations and procedures referred 
to in paragraph 1.

Article 210

Pollution by dumping

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
by dumping.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall ensure that 
dumping is not carried out without the permission of the 
competent authorities of States.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control such pollution. Such rules, 
standards and recommended practices and procedures shall 
be re-examined from time to time as necessary.

5. Dumping within the territorial sea and the exclusive 
economic zone or onto the continental shelf shall not be 
carried out without the express prior approval of the 
coastal State, which has the right to permit, regulate 
and control such dumping after due consideration of the 
matter with other States which by reason of their 
geographical situation may be adversely affected 
thereby.

6. National laws, regulations and measures shall be no 
less effective in preventing, reducing and controlling 
such pollution than the global rules and standards.

Article 211

Pollution from vessels

1. States, acting through the competent international 
organization or general diplomatic conference, shall 
establish international rules and standards to prevent, 
reduce and control pollution of the marine environment 
from vessels and promote the adoption, in the same 
manner, wherever appropriate, of routeing systems 
designed to minimize the threat of accidents which might 
cause pollution of the marine environment, including the 
coastline, and pollution damage to the related interests 
of coastal States. Such rules and standards shall, in 
the same manner, be re-examined from time to time as 
necessary.

2. States shall adopt laws and regulations for the 
prevention, reduction and control of pollution of the 
marine environment from vessels flying their flag or of 
their registry. Such laws and regulations shall at least 
have the same effect as that of generally accepted 
international rules and standards established through 
the competent international organization or general 
diplomatic conference.

3. States which establish particular requirements for 
the prevention, reduction and control of pollution of 
the marine environment as a condition for the entry of 
foreign vessels into their ports or internal waters or 
for a call at their off-shore terminals shall give due 
publicity to such requirements and shall communicate 
them to the competent international organization. 
Whenever such requirements are established in identical 
form by two or more coastal States in an endeavour to 
harmonize policy, the communication shall indicate which 
States are participating in such co-operative 
arrangements. Every State shall require the master of a 
vessel flying its flag or of its registry, when 
navigating within the territorial sea of a State 
participating in such co-operative arrangements, to 
furnish, upon the request of that State, information as 
to whether it is proceeding to a State of the same 
region participating in such co-operative arrangements 
and, if so, to indicate whether it complies with the 
port entry requirements of that State. This article is 
without prejudice to the continued exercise by a vessel 
of its right of innocent passage or to the application 
of article 25, paragraph 2.

4. Coastal States may, in the exercise of their 
sovereignty within their territorial sea, adopt laws and 
regulations for the prevention, reduction and control of 
marine pollution from foreign vessels, including vessels 
exercising the right of innocent passage. Such laws and 
regulations shall, in accordance with Part II, section 
3, not hamper innocent passage of foreign vessels.

5. Coastal States, for the purpose of enforcement as 
provided for in section 6, may in respect of their 
exclusive economic zones adopt laws and regulations for 
the prevention, reduction and control of pollution from 
vessels conforming to and giving effect to generally 
accepted international rules and standards established 
through the competent international organization or 
general diplomatic conference.

6. (a) Where the international rules and standards 
referred to in paragraph 1 are inadequate to meet 
special circumstances and coastal States have reasonable 
grounds for believing that a particular, clearly defined 
area of their respective exclusive economic zones is an 
area where the adoption of special mandatory measures 
for the prevention of pollution from vessels is required 
for recognized technical reasons in relation to its 
oceanographical and ecological conditions, as well as 
its utilization or the protection of its resources and 
the particular character of its traffic, the coastal 
States, after appropriate consultations through the 
competent international organization with any other 
States concerned, may, for that area, direct a 
communication to that organization, submitting 
scientific and technical evidence in support and 
information on necessary reception facilities. Within 12 
months after receiving such a communication, the 
organization shall determine whether the conditions in 
that area correspond to the requirements set out above. 
If the organization so determines, the coastal States 
may, for that area, adopt laws and regulations 
for the prevention, reduction and control of pollution 
from vessels implementing such international rules and 
standards or navigational practices as are made 
applicable, through the organization, for special areas. 
These laws and regulations shall not become applicable 
to foreign vessels until 15 months after the submission 
to the communication to the organization.

(b) The coastal States shall publish the limits of any 
such particular, clearly defined area.

(c) If the coastal States intend to adopt additional 
laws and regulations for the same area for the 
prevention, reduction and control of pollution from 
vessels, they shall, when submitting the aforesaid 
communication, at the same time notify the organization 
thereof. Such additional laws and regulations may relate 
to discharges or navigational practices but shall not 
require foreign vessels to observe design, construction, 
manning or equipment standards other than generally 
accepted international rules and standards; they shall 
become applicable to foreign vessels 15 months after the 
submission of the communication to the organization, 
provided that the organization agrees within 12 months 
after the submission of the communication.

7. The international rules and standards referred to in 
this article should include inter alia those relating to 
prompt notification to coastal States, whose coastline 
or related interests may be affected by incidents, 
including maritime casualties, which involve discharges 
or probability of discharges.

Article 212

Pollution from or through the atmosphere

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from or through the atmosphere, applicable to the air 
space under their sovereignty and to vessels flying 
their flag or vessels or aircraft of their registry, 
taking into account internationally agreed rules, 
standards and recommended practices and procedures and 
the safety of air navigation.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control such pollution.

SECTION 6. ENFORCEMENT

Article 213

Enforcement with respect to pollution from land-based 
sources

States shall enforce their laws and regulations adopted 
in accordance with article 207 and shall adopt laws and 
regulations and take other measures necessary to 
implement applicable international rules and standards 
established through competent international organiza-
tions or diplomatic conference to prevent, reduce and 
control pollution of the marine environment from land-
based sources.

Article 214

Enforcement with respect to pollution from sea-bed 
activities


States shall enforce their laws and regulations adopted 
in acco

United Nations Convention on the Law of the Sea




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8. UNITED NATIONS CONVENTION ON THE LAW OF THE SEA

(Montego Bay, 10 December 1982)

The States Parties to this Convention, (...) Recognizing 
the desirability of establishing through this 
Convention, with due regard for the sovereignty of all 
States, a legal order for the seas and oceans which will 
facilitate international communication, and will promote 
the peaceful uses of the seas and oceans, the equitable 
and efficient utilization of their resources, the 
conservation of their living resources, and the study, 
protection and preservation of the marine environment, 
(...)

PART I

INTRODUCTION

Article 1

Use of terms and scope

1. For the purposes of this Convention:

(1) "Area" means the sea-bed and ocean floor and subsoil 
thereof, beyonds the limits of national jurisdiction;
(...)

(4) "pollution of the marine environment" means the 
introduction by man, directly or indirectly, of 
substances or energy into the marine environment, 
including estuaries, which results or is likely to 
result in such deleterious effects as harm to living 
resources and marine life, hazards to human health, 
hindrance to marine activities, including fishing and 
other legitimate uses of the sea, impairment of quality 
for use of sea water and reduction of amenities;

(5) (a) "dumping" means:

(i) any deliberate disposal of wastes or other matter 
from vessels, aircraft, platforms or other man-made 
structures at sea;

(ii) any deliberate disposal of vessels, aircraft, 
platforms or other man-made structures at sea;

(b) "dumping" does not include:

(i) the disposal of wastes or other matter incidental 
to, or derived from the normal operations of vessels, 
aircraft, platforms or other man-made structures at sea 
and their equipment, other than wastes or other matter 
transported by or to vessels, aircraft, platforms or 
other man-made structures at sea, operating for the 
purpose of disposal of such matter or derived from the 
treatment of such wastes or other matter on such 
vessels, aircraft, platforms or structures;

(ii) placement of matter for a purpose other than the 
mere disposal thereof, provided that such placement is 
not contrary to the aims of this Convention.
(...)

PART II

TERRITORIAL SEA AND CONTIGUOUS ZONE

SECTION 3. INNOCENT PASSAGE IN THE TERRITORIAL SEA

Article 19

Meaning of innocent passage

(...)

2. Passage of a foreign ship shall be considered to be 
prejudicial to the peace, good order or security of the 
coastal State if in the territorial seas it engages in 
any of the following activities: (...)

(h)any act of wilful and serious pollution contrary to 
this Convention; (...)

Article 21

Laws and regulations of the coastal State relating to 
innocent passage

1. The coastal State may adopt laws and regulations, in 
conformity with the provisions of this Convention and 
other rules of international law, relating to innocent 
passage through the territorial sea, in respect of all 
or any of the following:

(...)

(f) the preservation of the environment of the coastal 
State and the prevention, reduction and control of 
pollution thereof; (...)

Article 22

Sea lanes and traffic separation schemes in the 
territorial sea

1. The coastal State may, where necessary having regard 
to the safety of navigation, require foreign ships 
exercising the right of innocent passage through its 
territorial sea to use such sea lanes and traffic 
separation schemes as it may designate or prescribe for 
the regulation of the passage of ships.

2. In particular, tankers, nuclear-powered ships and 
ships carrying nuclear or other inherently dangerous or 
noxious substances or materials may be required to 
confine their passage to such sea lanes.

(...)

Article 23

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances 
shall, when exercising the right of innocent passage 
through the territorial sea, carry documents and observe 
special precautionary measures established for such 
ships by international agreements.

(...)

PART III

STRAITS USED FOR INTERNATIONAL NAVIGATION

SECTION 2. TRANSIT PASSAGE

Article 39

Duties of ships and aircraft during transit passage

(...)

2. Ships in transit passage shall:

(...)

(b) comply with generally accepted international 
regulations, procedures and practices for the 
prevention, reduction and control of pollution from 
ships. (...)

Article 42

Laws and regulations of States bordering straits 
relating to transit passage

1. Subject to the provisions of this section, States 
bordering straits may adopt laws and regulations 
relating to transit passage through straits, in respect 
of all or any of the following:

(...)

(b) the prevention, reduction and control of pollution, 
by giving effect to applicable international regulations 
regarding the discharge of oil, oily wastes and other 
noxious substances in the straits;

(...)

Article 43

Navigational and safety aids and other improvements and 
the prevention, reduction and control of pollution

User States and States bordering a strait should by 
agreement co-operate:

(...)

(b) for the prevention, reduction and control of 
pollution from ships.

PART IV

ARCHIPELAGIC STATES

Article 54

Duties of ships and aircraft during their passage, 
research and survey activities, duties of the 
archipelagic State and laws and regulations of the 
archipelagic State relating to archipelagic sea lanes 
passage Articles 39, 40, 42 and 44 apply mutatis 
mutandis to archipelagic sea lanes passage.

PART V

EXCLUSIVE ECONOMIC ZONE

Article 56

Rights, jurisdiction and duties of the coastal State in 
the exclusive economic zone 

1. In the exclusive economic zone, the coastal State 
has:

(...)

(b) jurisdiction as provided for in the relevant 
provisions of this Convention with regard to:

(...)

(iii) the protection and preservation of the marine 
environment; (...)

Article 60

Artificial islands, installations and structures in the 
exclusive economic zone

(...)

3. Due notice must be given of the construction of such 
artificial islands, installations or structures, and 
permanent means for giving warning of their presence 
must be maintained. Any installations or structures 
which are abandoned or disused shall be removed to 
ensure safety of navigation, taking into account any 
generally accepted international standards established 
in this regard by the competent international 
organization. Such removal shall also have due regard to 
fishing, the protection of the marine environment and 
the rights and duties of other States. Appropriate 
publicity shall be given to the depth, position and 
dimensions of any installations or structures not 
entirely removed.

(...)

Article 65

Marine mammals

Nothing in this Part restricts the right of a coastal 
State or the competence of an international 
organization, as appropriate, to prohibit, limit or 
regulate the exploitation of marine mammals more 
strictly than provided for in this Part. States shall 
co-operate with a view to the conservation of marine 
mammals and in the case of cetaceans shall in particular 
work through the appropriate international organizations 
for their conservation, management and study.

PART VI

CONTINENTAL SHELF

Article 79

Submarine cables and pipelines on the continental shelf

(...)

2. Subject to its right to take reasonable measures for 
the exploration of the continental shelf, the 
exploitation of its natural resources and the 
prevention, reduction and control of pollution from 
pipelines, the coastal State may not impede the laying 
or maintenance of such cables or pipelines.

(...)

Article 80

Artificial islands, installations and structures on the 
continental shelf

Article 60 applies mutatis mutandis to artificial 
islands, installations and structures on the continental 
shelf.

PART VII

HIGH SEAS

SECTION 1. GENERAL PROVISIONS

Article 94

Duties of the flag State

(...)

7. Each State shall cause an inquiry to be held by or 
before a suitably qualified person or persons into every 
marine casualty or incident of navigation on the high 
seas involving a ship flying its flag and causing loss 
of life or serious injury to nationals of another state 
or serious damage to ships or installations of another 
State or to the marine environment. The flag State and 
the other State shall co-operate in the conduct of any 
inquiry held by that other State into any such marine 
casualty or incident of navigation.

SECTION 2. CONSERVATION AND MANAGEMENT OF THE LIVING 
RESOURCES OF THE HIGH SEAS

Article 120

Marine mammals

Article 65 also applies to the conservation and 
management of marine mammals in the high seas.


PART IX ENCLOSED OR SEMI-ENCLOSED SEAS

Article 123

Co-operation of States bordering enclosed or semi-
enclosed seas

States bordering an enclosed or semi-enclosed sea should 
co-operate with each other in the exercise of their 
rights and in the performance of their duties under this 
Convention. To this end they shall endeavour, directly 
or through an appropriate regional organization:

(...)

(b) to co-ordinate the implementation of their rights 
and duties with respect to the protection and 
preservation of the marine environment;

(...)


PART XI

THE AREA

SECTION 2. PRINCIPLES GOVERNING THE AREA

Article 142

Rights and legitimate interests of coastal States

(...)

3. Neither this Part nor any rights granted or exercised 
pursuant thereto shall affect the rights of coastal 
States to take such measures consistent with the 
relevant provisions of Part XII as may be necessary to 
prevent, mitigate or eliminate grave and imminent danger 
to their coastline, or related interests from pollution 
or threat thereof or from other hazardous occurrences 
resulting from or caused by any activities in the Area.


Article 145

Protection of the marine environment

Necessary measures shall be taken in accordance with 
this Convention with respect to activities in the Area 
to ensure effective protection for the marine 
environment from harmful effects which may arise from 
such activities. To this end the Authority shall adopt 
appropriate rules, regulations and procedures for inter 
alia:

(a) the prevention, reduction and control of pollution 
and other hazards to the marine environment, including 
the coastline, and of interference with the ecological 
balance of the marine environment, particular attention 
being paid to the need for protection from harmful 
effects of such activities as drilling, dredging, 
excavation, disposal of waste, construction and 
operation or maintenance of installations, pipelines and 
other devices related to such activities;

(b) the protection and conservation of the natural 
resources of the Area and the prevention of damage to 
the flora and fauna of the marine environment.

SECTION 4. THE AUTHORITY

SUBSECTION C. THE COUNCIL

Article 162

Powers and functions

(...)

2. In addition, the Council shall:

(...)

(w) issue emergency orders, which may include orders for 
the suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area;

(x) disapprove areas for exploitation by contractors or 
the Enterprise in cases where substantial evidence 
indicates the risk of serious harm to the marine 
environment;

(...)

Article 165

The Legal and Technical Commission

1. Members of the Legal and Technical Commission shall 
have appropriate qualifications such as those relevant 
to exploration for and exploitation and processing of 
mineral resources, oceanology, protection of the marine 
environment, or economic or legal matters relating to 
ocean mining and related fields of expertise. The 
Council shall endeavour to ensure that the membership of 
the Commission reflects all appropriate qualifications.

2. The Commission shall:

(...)

(e) make recommendations to the Council on the 
protection of the marine environment, taking into 
account the views of recognized experts in that field;

(f) formulate and submit to the Council the rules, 
regulations and procedures referred to in article 162, 
paragraph 2(o), taking into account all relevant factors 
including assessments of the environmental implications 
of activities in the Area;

(...)

(h) make recommendations to the Council regarding the 
establishment of a monitoring programme to observe, 
measure, evaluate and analyse, by recognized scientific 
methods, on a regular basis, the risks or effects of 
pollution of the marine environment resulting from 
activities in the Area, ensure that existing regulations 
are adequate and are complied with and co-ordinate the 
implementation of the monitoring programme approved by 
the Council;

(...)

(k) make recommendations to the Council to issue 
emergency orders, which may include orders for the 
suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area. Such recommendations shall be 
taken up by the Council on a priority basis;

(l) make recommendations to the Council to disapprove 
areas for exploitation by contractors or the Enterprise 
in cases where substantial evidence indicates the risk 
of serious harm to the marine environment;

(...)

PART XII

PROTECTION AND PRESERVATION OF THE MARINE ENVIRONMENT
SECTION 1. GENERAL PROVISIONS

Article 192

General obligation

States have the obligation to protect and preserve the 
marine environment.

Article 193

Sovereign right of States to exploit their natural 
resources

States have the sovereign right to exploit their natural 
resources pursuant to their environmental policies and 
in accordance with their duty to protect and preserve 
the marine environment.

Article 194

Measures to prevent, reduce and control pollution of the 
marine environment

1. States shall take, individually or jointly as 
appropriate, all measures consistent with this 
Convention that are necessary to prevent, reduce and 
control pollution of the marine environment from any 
source, using for this purpose the best practicable 
means at their disposal and in accordance with their 
capabilities, and they shall endeavour to harmonize 
their policies in this connection.

2. States shall take all measures necessary to ensure 
that activities under their jurisdiction or control are 
so conducted as not to cause damage by pollution to 
other States and their environment, and that pollution 
arising from incidents or activities under their 
jurisdiction or control does not spread beyond the areas 
where they exercise sovereign rights in accordance with 
this Convention. 3. The measures taken pursuant to this 
Part shall deal with all sources of pollution of the 
marine environment. These measures shall include, inter 
alia, those designed to minimize to the fullest possible 
extent:

(a) the release of toxic, harmful or noxious substances, 
especially those which are persistent, from land-based 
sources, from or through the atmosphere or by dumping;

(b) pollution from vessels, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, preventing 
intentional and unintentional discharges, and regulating 
the design, construction, equipment, operation and 
manning of vessels;

(c) pollution from installations and devices used in 
exploration or exploitation of the natural resources of 
the sea-bed and subsoil, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, and regulating 
the design, construction, equipment, operation and 
manning of such installations or devices;

(d) pollution from other installations and devices 
operating in the marine environment, in particular 
measures for preventing accidents and dealing with 
emergencies, ensuring the safety of operations at sea, 
and regulating the design, construction, equipment, 
operation and manning of such installations or devices.

4. In taking measures to prevent, reduce or control 
pollution of the marine environment, States shall 
refrain from unjustifiable interference with activities 
carried out by other States in the exercise of their 
rights and in pursuance of their duties in conformity 
with this Convention.

5. The measures taken in accordance with this Part shall 
include those necessary to protect and preserve rare or 
fragile ecosystems as well as the habitat of depleted, 
threatened or endangered species and other forms of 
marine life.

Article 195

Duty not to transfer damage or hazards or transform one 
type of pollution into another In taking measures to 
prevent, reduce and control pollution of the marine 
environment, States shall act so as not to transfer, 
directly or indirectly, damage or hazards from one area 
to another or transform one type of pollution into 
another.

Article 196

Use of technologies or introduction of alien or new 
species

1. States shall take all measures necessary to prevent, 
reduce and control pollution of the marine environment 
resulting from the use of technologies under their 
jurisdiction or control, or the intentional or 
accidental introduction of species, alien or new, to a 
particular part of the marine environment, which may 
cause significant and harmful changes thereto.

2. This article does not affect the application of this 
Convention regarding the prevention, reduction and 
control of pollution of the marine environment.

SECTION 2. GLOBAL AND REGIONAL CO-OPERATION

Article 197

Co-operation on a global or regional basis

States shall co-operate on a global basis and, as 
appropriate, on a regional basis, directly or through 
competent international organizations, in formulating 
and elaborating international rules, standards and 
recommended practices and procedures consistent 
with this Convention, for the protection and 
preservation of the marine environment, taking into 
account characteristic regional features.

Article 198

Notification of imminent or actual damage

When a State becomes aware of cases in which the marine 
environment is in imminent danger of being damaged or 
has been damaged by pollution, it shall immediately 
notify other States it deems likely to be affected by 
such damage, as well as the competent international 
organizations.

Article 199

Contingency plans against pollution

In the cases referred to in article 198, States in the 
area affected, in accordance with their capabilities, 
and the competent international organizations shall co-
operate, to the extent possible, in eliminating the 
effects of pollution and preventing or minimizing the 
damage. To this end, States shall jointly develop and 
promote contingency plans for responding to pollution 
incidents in the marine environment.

Article 200

Studies, research programmes and exchange of information 
and data States shall co-operate, directly or through 
competent international organizations, for the purpose 
of promoting studies, undertaking programmes of 
scientific research and encouraging the exchange of 
information and data acquired about pollution of the 
marine environment. They shall endeavour to participate 
actively in regional and global programmes to acquire 
knowledge for the assessment of the nature and extent of 
pollution, exposure to it, and its pathways, risks and 
remedies.

Article 201

Scientific criteria for regulations

In the light of the information and data acquired 
pursuant to article 200, States shall co-operate, 
directly or through competent international 
organizations, in establishing appropriate scientific 
criteria for the formulation and elaboration of rules, 
standards and recommended practices and procedures for 
the prevention, reduction and control of pollution of 
the marine environment.

SECTION 3. TECHNICAL ASSISTANCE

Article 202

Scientific and technical assistance to developing States

States shall, directly or through competent 
international organizations:

(a) promote programmes of scientific, educational, 
technical and other assistance to developing States for 
the protection and preservation of the marine 
environment and the prevention, reduction and control of 
marine pollution. Such assistance shall include, inter 
alia:

(i) training of their scientific and technical 
personnel;

(ii) facilitating their participation in relevant 
international programmes;

(iii) supplying them with necessary equipment and 
facilities; 

(iv) enhancing their capacity to manufacture such 
equipment; 

(v) advice on and developing facilities for research, 
monitoring, educational and other programmes;

(b) provide appropriate assistance, especially to 
developing States, for the minimization of the effects 
of major incidents which may cause serious pollution of 
the marine environment;

(c) provide appropriate assistance, especially to 
developing States, concerning the preparation of 
environmental assessments.

Article 203

Preferential treatment for developing States

Developing States shall, for the purposes of prevention, 
reduction and control of pollution of the marine 
environment or minimization of its effects, be granted 
preference by international organizations in:

(a) the allocation of appropriate funds and technical 
assistances; and

(b) the utilization of their specialized services.

SECTION 4. MONITORING AND ENVIRONMENTAL ASSESSMENT


Article 204

Monitoring of the risks or effects of pollution

1. States shall, consistent with the rights of other 
States, endeavour, as far as practicable, directly or 
through the competent international organizations, to 
observe, measure, evaluate and analyse, by recognized 
scientific methods, the risks or effects of pollution of 
the marine environment.

2. In particular, States shall keep under surveillance 
the effects of any activities which they permit or in 
which they engage in order to determine whether these 
activities are likely to pollute the marine environment.

Article 205

Publication of reports

States shall publish reports of the results obtained 
pursuant to article 204 or provide such reports at 
appropriate intervals to the competent international 
organizations, which should make them available to all 
States.

Article 206

Assessment of potential effects of activities

When States have reasonable grounds for believing that 
planned activities under their jurisdiction or control 
may cause substantial pollution of or significant and 
harmful changes to the marine environment, they shall, 
as far as practicable, assess the potential effects of 
such activities on the marine environment and shall 
communicate reports of the results of such assessments 
in the manner provided in article 205.

SECTION 5. INTERNATIONAL RULES AND NATIONAL LEGISLATION 
TO PREVENT, REDUCE AND CONTROL POLLUTION OF THE MARINE 
ENVIRONMENT

Article 207

Pollution from land-based sources

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from land-based sources, including rivers, estuaries, 
pipelines and outfall structures, taking into account 
internationally agreed rules, standards and recommended 
practices and procedures.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control pollution of the marine 
environment from land-based sources, taking into account 
characteristic regional features, the economic capacity 
of developing States and their need for economic 
development. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

5. Laws, regulations, measures, rules, standards and 
recommended practices and procedures referred to in 
paragraphs 1, 2 and 4 shall include those designed to 
minimize, to the fullest extent possible, the release of 
toxic, harmful or noxious substances, especially those 
which are persistent, into the marine environment.

Article 208

Pollution from sea-bed activities subject to national 
jurisdiction


1. Coastal States shall adopt laws and regulations to 
prevent, reduce and control pollution of the marine 
environment arising from or in connection with sea-bed 
activities subject to their jurisdiction and from 
artificial islands, installations and structures under 
their jurisdiction, pursuant to articles 60 and 80.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall be no less 
effective than international rules, standards and 
recommended practices and procedures.

4. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

5. States, acting especially through competent 
international organizations or diplomatic conference, 
shall establish global and regional rules, standards and 
recommended practices and procedures to prevent, reduce 
and control pollution of the marine environment referred 
to in paragraph 1. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

Article 209

Pollution from activities in the Area

1. International rules, regulations and procedures shall 
be established in accordance with Part XI to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area. Such rules, regulations and 
procedures shall be re-examined from time to time as 
necessary.

2. Subject to the relevant provisions of this section, 
States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area undertaken by vessels, 
installations, structures and other devices flying their 
flag or of their registry or operating under their 
authority, as the case may be. The requirements of such 
laws and regulations shall be no less effective than the 
international rules, regulations and procedures referred 
to in paragraph 1.

Article 210

Pollution by dumping

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
by dumping.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall ensure that 
dumping is not carried out without the permission of the 
competent authorities of States.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control such pollution. Such rules, 
standards and recommended practices and procedures shall 
be re-examined from time to time as necessary.

5. Dumping within the territorial sea and the exclusive 
economic zone or onto the continental shelf shall not be 
carried out without the express prior approval of the 
coastal State, which has the right to permit, regulate 
and control such dumping after due consideration of the 
matter with other States which by reason of their 
geographical situation may be adversely affected 
thereby.

6. National laws, regulations and measures shall be no 
less effective in preventing, reducing and controlling 
such pollution than the global rules and standards.

Article 211

Pollution from vessels

1. States, acting through the competent international 
organization or general diplomatic conference, shall 
establish international rules and standards to prevent, 
reduce and control pollution of the marine environment 
from vessels and promote the adoption, in the same 
manner, wherever appropriate, of routeing systems 
designed to minimize the threat of accidents which might 
cause pollution of the marine environment, including the 
coastline, and pollution damage to the related interests 
of coastal States. Such rules and standards shall, in 
the same manner, be re-examined from time to time as 
necessary.

2. States shall adopt laws and regulations for the 
prevention, reduction and control of pollution of the 
marine environment from vessels flying their flag or of 
their registry. Such laws and regulations shall at least 
have the same effect as that of generally accepted 
international rules and standards established through 
the competent international organization or general 
diplomatic conference.

3. States which establish particular requirements for 
the prevention, reduction and control of pollution of 
the marine environment as a condition for the entry of 
foreign vessels into their ports or internal waters or 
for a call at their off-shore terminals shall give due 
publicity to such requirements and shall communicate 
them to the competent international organization. 
Whenever such requirements are established in identical 
form by two or more coastal States in an endeavour to 
harmonize policy, the communication shall indicate which 
States are participating in such co-operative 
arrangements. Every State shall require the master of a 
vessel flying its flag or of its registry, when 
navigating within the territorial sea of a State 
participating in such co-operative arrangements, to 
furnish, upon the request of that State, information as 
to whether it is proceeding to a State of the same 
region participating in such co-operative arrangements 
and, if so, to indicate whether it complies with the 
port entry requirements of that State. This article is 
without prejudice to the continued exercise by a vessel 
of its right of innocent passage or to the application 
of article 25, paragraph 2.

4. Coastal States may, in the exercise of their 
sovereignty within their territorial sea, adopt laws and 
regulations for the prevention, reduction and control of 
marine pollution from foreign vessels, including vessels 
exercising the right of innocent passage. Such laws and 
regulations shall, in accordance with Part II, section 
3, not hamper innocent passage of foreign vessels.

5. Coastal States, for the purpose of enforcement as 
provided for in section 6, may in respect of their 
exclusive economic zones adopt laws and regulations for 
the prevention, reduction and control of pollution from 
vessels conforming to and giving effect to generally 
accepted international rules and standards established 
through the competent international organization or 
general diplomatic conference.

6. (a) Where the international rules and standards 
referred to in paragraph 1 are inadequate to meet 
special circumstances and coastal States have reasonable 
grounds for believing that a particular, clearly defined 
area of their respective exclusive economic zones is an 
area where the adoption of special mandatory measures 
for the prevention of pollution from vessels is required 
for recognized technical reasons in relation to its 
oceanographical and ecological conditions, as well as 
its utilization or the protection of its resources and 
the particular character of its traffic, the coastal 
States, after appropriate consultations through the 
competent international organization with any other 
States concerned, may, for that area, direct a 
communication to that organization, submitting 
scientific and technical evidence in support and 
information on necessary reception facilities. Within 12 
months after receiving such a communication, the 
organization shall determine whether the conditions in 
that area correspond to the requirements set out above. 
If the organization so determines, the coastal States 
may, for that area, adopt laws and regulations 
for the prevention, reduction and control of pollution 
from vessels implementing such international rules and 
standards or navigational practices as are made 
applicable, through the organization, for special areas. 
These laws and regulations shall not become applicable 
to foreign vessels until 15 months after the submission 
to the communication to the organization.

(b) The coastal States shall publish the limits of any 
such particular, clearly defined area.

(c) If the coastal States intend to adopt additional 
laws and regulations for the same area for the 
prevention, reduction and control of pollution from 
vessels, they shall, when submitting the aforesaid 
communication, at the same time notify the organization 
thereof. Such additional laws and regulations may relate 
to discharges or navigational practices but shall not 
require foreign vessels to observe design, construction, 
manning or equipment standards other than generally 
accepted international rules and standards; they shall 
become applicable to foreign vessels 15 months after the 
submission of the communication to the organization, 
provided that the organization agrees within 12 months 
after the submission of the communication.

7. The international rules and standards referred to in 
this article should include inter alia those relating to 
prompt notification to coastal States, whose coastline 
or related interests may be affected by incidents, 
including maritime casualties, which involve discharges 
or probability of discharges.

Article 212

Pollution from or through the atmosphere

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from or through the atmosphere, applicable to the air 
space under their sovereignty and to vessels flying 
their flag or vessels or aircraft of their registry, 
taking into account internationally agreed rules, 
standards and recommended practices and procedures and 
the safety of air navigation.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control such pollution.

SECTION 6. ENFORCEMENT

Article 213

Enforcement with respect to pollution from land-based 
sources

States shall enforce their laws and regulations adopted 
in accordance with article 207 and shall adopt laws and 
regulations and take other measures necessary to 
implement applicable international rules and standards 
established through competent international organiza-
tions or diplomatic conference to prevent, reduce and 
control pollution of the marine environment from land-
based sources.

Article 214

Enforcement with respect to pollution from sea-bed 
activities


States shall enforce their laws and regulations adopted 
in accordance with article 208 and shall adopt laws and 
regulations and take other measures necessary to 
implement applicable international rules and standards 
established through competent international 
organizations or diplomatic conference to prevent, 
reduce and control pollution of the marine environment 
arising from or in connection with sea-bed activities 
subject to their jurisdiction and from artificial 
islands, installations and structures under their 
jurisdiction, pursuant to articles 60 and 80.

Article 215

Enforcement with respect to pollution from activities in 
the Area

Enforcement of international rules, regulations and 
procedures established in accordance with Part XI to 
prevent, reduce and control pollution of the marine 
environment from activities in the Area shall be 
governed by that Part.

Article 216

Enforcement with respect to pollution by dumping

1. Laws and regulations adopted in accordance with this 
Convention and applicable international rules and 
standards established through competent international 
organizations or diplomatic conference for the 
prevention, reduction and control of pollution of the 
marine environment by dumping shall be enforced:

(a) by the coastal State with regard to dumping within 
its territorial sea or its exclusive economic zone or 
onto its continental shelf;

(b) by the flag State with regard to vessels flying its 
flag or vessels or aircraft of its registry;

(c) by any State with regard to acts of loading of 
wastes or other matter occurring within its territory or 
at its off-shore terminals. 2. No State shall be obliged 
by virtue of this article to institute proceedings when 
another State has already instituted proceedings 
in accordance with this article.

Article 217

Enforcement by flag States

1. States shall ensure compliance by vessels flying 
their flag or of their registry with applicable 
international rules and standards, established through 
the competent international organization or general 
diplomatic conference, and with their laws and 
regulations adopted in accordance with this Convention 
for the prevention, reduction and control of pollution 
of the marine environment from vessels and shall 
accordingly adopt laws and regulations and take other 
measures necessary for their implementation. Flag States 
shall provide for the effective enforcement of such 
rules, standards, laws and regulations, irrespective of 
where a violation occurs.

2. States shall, in particular, take appropriate 
measures in order to ensure that vessels flying their 
flag or of their registry are prohibited from sailing, 
until they can proceed to sea in compliance with the 
requirements of the international rules and standards 
referred to in paragraph 1, including requirements in 
respect of design, construction, equipment and manning 
of vessels.

3. States shall ensure that vessels flying their flag or 
of their registry carry on board certificates required 
by and issued pursuant to international rules and 
standards referred to in paragraph 1. States shall 
ensure that vessels flying their flag are periodically 
inspected in order to verify that such certificates are 
in conformity with the actual condition of the vessels. 
These certificates shall be accepted by other States as 
evidence of the condition of the vessels and shall be 
regarded as having the same force as certificates issued 
by them, unless there are clear grounds for believing 
that the condition of the vessel does not correspond 
substantially with the particulars of the certificates.

4. If a vessel commits a violation of rules and 
standards established through the competent inter-
national organization or general diplomatic conference, 
the flag State, without prejudice to articles 218, 220 
and 228, shall provide for immediate investigation and 
where appropriate institute proceedings in respect of 
the alleged violation irrespective of where the 
violation occurred or where the pollution caused by such 
violation has occurred or has been spotted. 

5. Flag States conducting an in

United Nations Convention on the Law of the Sea




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8. UNITED NATIONS CONVENTION ON THE LAW OF THE SEA

(Montego Bay, 10 December 1982)

The States Parties to this Convention, (...) Recognizing 
the desirability of establishing through this 
Convention, with due regard for the sovereignty of all 
States, a legal order for the seas and oceans which will 
facilitate international communication, and will promote 
the peaceful uses of the seas and oceans, the equitable 
and efficient utilization of their resources, the 
conservation of their living resources, and the study, 
protection and preservation of the marine environment, 
(...)

PART I

INTRODUCTION

Article 1

Use of terms and scope

1. For the purposes of this Convention:

(1) "Area" means the sea-bed and ocean floor and subsoil 
thereof, beyonds the limits of national jurisdiction;
(...)

(4) "pollution of the marine environment" means the 
introduction by man, directly or indirectly, of 
substances or energy into the marine environment, 
including estuaries, which results or is likely to 
result in such deleterious effects as harm to living 
resources and marine life, hazards to human health, 
hindrance to marine activities, including fishing and 
other legitimate uses of the sea, impairment of quality 
for use of sea water and reduction of amenities;

(5) (a) "dumping" means:

(i) any deliberate disposal of wastes or other matter 
from vessels, aircraft, platforms or other man-made 
structures at sea;

(ii) any deliberate disposal of vessels, aircraft, 
platforms or other man-made structures at sea;

(b) "dumping" does not include:

(i) the disposal of wastes or other matter incidental 
to, or derived from the normal operations of vessels, 
aircraft, platforms or other man-made structures at sea 
and their equipment, other than wastes or other matter 
transported by or to vessels, aircraft, platforms or 
other man-made structures at sea, operating for the 
purpose of disposal of such matter or derived from the 
treatment of such wastes or other matter on such 
vessels, aircraft, platforms or structures;

(ii) placement of matter for a purpose other than the 
mere disposal thereof, provided that such placement is 
not contrary to the aims of this Convention.
(...)

PART II

TERRITORIAL SEA AND CONTIGUOUS ZONE

SECTION 3. INNOCENT PASSAGE IN THE TERRITORIAL SEA

Article 19

Meaning of innocent passage

(...)

2. Passage of a foreign ship shall be considered to be 
prejudicial to the peace, good order or security of the 
coastal State if in the territorial seas it engages in 
any of the following activities: (...)

(h)any act of wilful and serious pollution contrary to 
this Convention; (...)

Article 21

Laws and regulations of the coastal State relating to 
innocent passage

1. The coastal State may adopt laws and regulations, in 
conformity with the provisions of this Convention and 
other rules of international law, relating to innocent 
passage through the territorial sea, in respect of all 
or any of the following:

(...)

(f) the preservation of the environment of the coastal 
State and the prevention, reduction and control of 
pollution thereof; (...)

Article 22

Sea lanes and traffic separation schemes in the 
territorial sea

1. The coastal State may, where necessary having regard 
to the safety of navigation, require foreign ships 
exercising the right of innocent passage through its 
territorial sea to use such sea lanes and traffic 
separation schemes as it may designate or prescribe for 
the regulation of the passage of ships.

2. In particular, tankers, nuclear-powered ships and 
ships carrying nuclear or other inherently dangerous or 
noxious substances or materials may be required to 
confine their passage to such sea lanes.

(...)

Article 23

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances 
shall, when exercising the right of innocent passage 
through the territorial sea, carry documents and observe 
special precautionary measures established for such 
ships by international agreements.

(...)

PART III

STRAITS USED FOR INTERNATIONAL NAVIGATION

SECTION 2. TRANSIT PASSAGE

Article 39

Duties of ships and aircraft during transit passage

(...)

2. Ships in transit passage shall:

(...)

(b) comply with generally accepted international 
regulations, procedures and practices for the 
prevention, reduction and control of pollution from 
ships. (...)

Article 42

Laws and regulations of States bordering straits 
relating to transit passage

1. Subject to the provisions of this section, States 
bordering straits may adopt laws and regulations 
relating to transit passage through straits, in respect 
of all or any of the following:

(...)

(b) the prevention, reduction and control of pollution, 
by giving effect to applicable international regulations 
regarding the discharge of oil, oily wastes and other 
noxious substances in the straits;

(...)

Article 43

Navigational and safety aids and other improvements and 
the prevention, reduction and control of pollution

User States and States bordering a strait should by 
agreement co-operate:

(...)

(b) for the prevention, reduction and control of 
pollution from ships.

PART IV

ARCHIPELAGIC STATES

Article 54

Duties of ships and aircraft during their passage, 
research and survey activities, duties of the 
archipelagic State and laws and regulations of the 
archipelagic State relating to archipelagic sea lanes 
passage Articles 39, 40, 42 and 44 apply mutatis 
mutandis to archipelagic sea lanes passage.

PART V

EXCLUSIVE ECONOMIC ZONE

Article 56

Rights, jurisdiction and duties of the coastal State in 
the exclusive economic zone 

1. In the exclusive economic zone, the coastal State 
has:

(...)

(b) jurisdiction as provided for in the relevant 
provisions of this Convention with regard to:

(...)

(iii) the protection and preservation of the marine 
environment; (...)

Article 60

Artificial islands, installations and structures in the 
exclusive economic zone

(...)

3. Due notice must be given of the construction of such 
artificial islands, installations or structures, and 
permanent means for giving warning of their presence 
must be maintained. Any installations or structures 
which are abandoned or disused shall be removed to 
ensure safety of navigation, taking into account any 
generally accepted international standards established 
in this regard by the competent international 
organization. Such removal shall also have due regard to 
fishing, the protection of the marine environment and 
the rights and duties of other States. Appropriate 
publicity shall be given to the depth, position and 
dimensions of any installations or structures not 
entirely removed.

(...)

Article 65

Marine mammals

Nothing in this Part restricts the right of a coastal 
State or the competence of an international 
organization, as appropriate, to prohibit, limit or 
regulate the exploitation of marine mammals more 
strictly than provided for in this Part. States shall 
co-operate with a view to the conservation of marine 
mammals and in the case of cetaceans shall in particular 
work through the appropriate international organizations 
for their conservation, management and study.

PART VI

CONTINENTAL SHELF

Article 79

Submarine cables and pipelines on the continental shelf

(...)

2. Subject to its right to take reasonable measures for 
the exploration of the continental shelf, the 
exploitation of its natural resources and the 
prevention, reduction and control of pollution from 
pipelines, the coastal State may not impede the laying 
or maintenance of such cables or pipelines.

(...)

Article 80

Artificial islands, installations and structures on the 
continental shelf

Article 60 applies mutatis mutandis to artificial 
islands, installations and structures on the continental 
shelf.

PART VII

HIGH SEAS

SECTION 1. GENERAL PROVISIONS

Article 94

Duties of the flag State

(...)

7. Each State shall cause an inquiry to be held by or 
before a suitably qualified person or persons into every 
marine casualty or incident of navigation on the high 
seas involving a ship flying its flag and causing loss 
of life or serious injury to nationals of another state 
or serious damage to ships or installations of another 
State or to the marine environment. The flag State and 
the other State shall co-operate in the conduct of any 
inquiry held by that other State into any such marine 
casualty or incident of navigation.

SECTION 2. CONSERVATION AND MANAGEMENT OF THE LIVING 
RESOURCES OF THE HIGH SEAS

Article 120

Marine mammals

Article 65 also applies to the conservation and 
management of marine mammals in the high seas.


PART IX ENCLOSED OR SEMI-ENCLOSED SEAS

Article 123

Co-operation of States bordering enclosed or semi-
enclosed seas

States bordering an enclosed or semi-enclosed sea should 
co-operate with each other in the exercise of their 
rights and in the performance of their duties under this 
Convention. To this end they shall endeavour, directly 
or through an appropriate regional organization:

(...)

(b) to co-ordinate the implementation of their rights 
and duties with respect to the protection and 
preservation of the marine environment;

(...)


PART XI

THE AREA

SECTION 2. PRINCIPLES GOVERNING THE AREA

Article 142

Rights and legitimate interests of coastal States

(...)

3. Neither this Part nor any rights granted or exercised 
pursuant thereto shall affect the rights of coastal 
States to take such measures consistent with the 
relevant provisions of Part XII as may be necessary to 
prevent, mitigate or eliminate grave and imminent danger 
to their coastline, or related interests from pollution 
or threat thereof or from other hazardous occurrences 
resulting from or caused by any activities in the Area.


Article 145

Protection of the marine environment

Necessary measures shall be taken in accordance with 
this Convention with respect to activities in the Area 
to ensure effective protection for the marine 
environment from harmful effects which may arise from 
such activities. To this end the Authority shall adopt 
appropriate rules, regulations and procedures for inter 
alia:

(a) the prevention, reduction and control of pollution 
and other hazards to the marine environment, including 
the coastline, and of interference with the ecological 
balance of the marine environment, particular attention 
being paid to the need for protection from harmful 
effects of such activities as drilling, dredging, 
excavation, disposal of waste, construction and 
operation or maintenance of installations, pipelines and 
other devices related to such activities;

(b) the protection and conservation of the natural 
resources of the Area and the prevention of damage to 
the flora and fauna of the marine environment.

SECTION 4. THE AUTHORITY

SUBSECTION C. THE COUNCIL

Article 162

Powers and functions

(...)

2. In addition, the Council shall:

(...)

(w) issue emergency orders, which may include orders for 
the suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area;

(x) disapprove areas for exploitation by contractors or 
the Enterprise in cases where substantial evidence 
indicates the risk of serious harm to the marine 
environment;

(...)

Article 165

The Legal and Technical Commission

1. Members of the Legal and Technical Commission shall 
have appropriate qualifications such as those relevant 
to exploration for and exploitation and processing of 
mineral resources, oceanology, protection of the marine 
environment, or economic or legal matters relating to 
ocean mining and related fields of expertise. The 
Council shall endeavour to ensure that the membership of 
the Commission reflects all appropriate qualifications.

2. The Commission shall:

(...)

(e) make recommendations to the Council on the 
protection of the marine environment, taking into 
account the views of recognized experts in that field;

(f) formulate and submit to the Council the rules, 
regulations and procedures referred to in article 162, 
paragraph 2(o), taking into account all relevant factors 
including assessments of the environmental implications 
of activities in the Area;

(...)

(h) make recommendations to the Council regarding the 
establishment of a monitoring programme to observe, 
measure, evaluate and analyse, by recognized scientific 
methods, on a regular basis, the risks or effects of 
pollution of the marine environment resulting from 
activities in the Area, ensure that existing regulations 
are adequate and are complied with and co-ordinate the 
implementation of the monitoring programme approved by 
the Council;

(...)

(k) make recommendations to the Council to issue 
emergency orders, which may include orders for the 
suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area. Such recommendations shall be 
taken up by the Council on a priority basis;

(l) make recommendations to the Council to disapprove 
areas for exploitation by contractors or the Enterprise 
in cases where substantial evidence indicates the risk 
of serious harm to the marine environment;

(...)

PART XII

PROTECTION AND PRESERVATION OF THE MARINE ENVIRONMENT
SECTION 1. GENERAL PROVISIONS

Article 192

General obligation

States have the obligation to protect and preserve the 
marine environment.

Article 193

Sovereign right of States to exploit their natural 
resources

States have the sovereign right to exploit their natural 
resources pursuant to their environmental policies and 
in accordance with their duty to protect and preserve 
the marine environment.

Article 194

Measures to prevent, reduce and control pollution of the 
marine environment

1. States shall take, individually or jointly as 
appropriate, all measures consistent with this 
Convention that are necessary to prevent, reduce and 
control pollution of the marine environment from any 
source, using for this purpose the best practicable 
means at their disposal and in accordance with their 
capabilities, and they shall endeavour to harmonize 
their policies in this connection.

2. States shall take all measures necessary to ensure 
that activities under their jurisdiction or control are 
so conducted as not to cause damage by pollution to 
other States and their environment, and that pollution 
arising from incidents or activities under their 
jurisdiction or control does not spread beyond the areas 
where they exercise sovereign rights in accordance with 
this Convention. 3. The measures taken pursuant to this 
Part shall deal with all sources of pollution of the 
marine environment. These measures shall include, inter 
alia, those designed to minimize to the fullest possible 
extent:

(a) the release of toxic, harmful or noxious substances, 
especially those which are persistent, from land-based 
sources, from or through the atmosphere or by dumping;

(b) pollution from vessels, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, preventing 
intentional and unintentional discharges, and regulating 
the design, construction, equipment, operation and 
manning of vessels;

(c) pollution from installations and devices used in 
exploration or exploitation of the natural resources of 
the sea-bed and subsoil, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, and regulating 
the design, construction, equipment, operation and 
manning of such installations or devices;

(d) pollution from other installations and devices 
operating in the marine environment, in particular 
measures for preventing accidents and dealing with 
emergencies, ensuring the safety of operations at sea, 
and regulating the design, construction, equipment, 
operation and manning of such installations or devices.

4. In taking measures to prevent, reduce or control 
pollution of the marine environment, States shall 
refrain from unjustifiable interference with activities 
carried out by other States in the exercise of their 
rights and in pursuance of their duties in conformity 
with this Convention.

5. The measures taken in accordance with this Part shall 
include those necessary to protect and preserve rare or 
fragile ecosystems as well as the habitat of depleted, 
threatened or endangered species and other forms of 
marine life.

Article 195

Duty not to transfer damage or hazards or transform one 
type of pollution into another In taking measures to 
prevent, reduce and control pollution of the marine 
environment, States shall act so as not to transfer, 
directly or indirectly, damage or hazards from one area 
to another or transform one type of pollution into 
another.

Article 196

Use of technologies or introduction of alien or new 
species

1. States shall take all measures necessary to prevent, 
reduce and control pollution of the marine environment 
resulting from the use of technologies under their 
jurisdiction or control, or the intentional or 
accidental introduction of species, alien or new, to a 
particular part of the marine environment, which may 
cause significant and harmful changes thereto.

2. This article does not affect the application of this 
Convention regarding the prevention, reduction and 
control of pollution of the marine environment.

SECTION 2. GLOBAL AND REGIONAL CO-OPERATION

Article 197

Co-operation on a global or regional basis

States shall co-operate on a global basis and, as 
appropriate, on a regional basis, directly or through 
competent international organizations, in formulating 
and elaborating international rules, standards and 
recommended practices and procedures consistent 
with this Convention, for the protection and 
preservation of the marine environment, taking into 
account characteristic regional features.

Article 198

Notification of imminent or actual damage

When a State becomes aware of cases in which the marine 
environment is in imminent danger of being damaged or 
has been damaged by pollution, it shall immediately 
notify other States it deems likely to be affected by 
such damage, as well as the competent international 
organizations.

Article 199

Contingency plans against pollution

In the cases referred to in article 198, States in the 
area affected, in accordance with their capabilities, 
and the competent international organizations shall co-
operate, to the extent possible, in eliminating the 
effects of pollution and preventing or minimizing the 
damage. To this end, States shall jointly develop and 
promote contingency plans for responding to pollution 
incidents in the marine environment.

Article 200

Studies, research programmes and exchange of information 
and data States shall co-operate, directly or through 
competent international organizations, for the purpose 
of promoting studies, undertaking programmes of 
scientific research and encouraging the exchange of 
information and data acquired about pollution of the 
marine environment. They shall endeavour to participate 
actively in regional and global programmes to acquire 
knowledge for the assessment of the nature and extent of 
pollution, exposure to it, and its pathways, risks and 
remedies.

Article 201

Scientific criteria for regulations

In the light of the information and data acquired 
pursuant to article 200, States shall co-operate, 
directly or through competent international 
organizations, in establishing appropriate scientific 
criteria for the formulation and elaboration of rules, 
standards and recommended practices and procedures for 
the prevention, reduction and control of pollution of 
the marine environment.

SECTION 3. TECHNICAL ASSISTANCE

Article 202

Scientific and technical assistance to developing States

States shall, directly or through competent 
international organizations:

(a) promote programmes of scientific, educational, 
technical and other assistance to developing States for 
the protection and preservation of the marine 
environment and the prevention, reduction and control of 
marine pollution. Such assistance shall include, inter 
alia:

(i) training of their scientific and technical 
personnel;

(ii) facilitating their participation in relevant 
international programmes;

(iii) supplying them with necessary equipment and 
facilities; 

(iv) enhancing their capacity to manufacture such 
equipment; 

(v) advice on and developing facilities for research, 
monitoring, educational and other programmes;

(b) provide appropriate assistance, especially to 
developing States, for the minimization of the effects 
of major incidents which may cause serious pollution of 
the marine environment;

(c) provide appropriate assistance, especially to 
developing States, concerning the preparation of 
environmental assessments.

Article 203

Preferential treatment for developing States

Developing States shall, for the purposes of prevention, 
reduction and control of pollution of the marine 
environment or minimization of its effects, be granted 
preference by international organizations in:

(a) the allocation of appropriate funds and technical 
assistances; and

(b) the utilization of their specialized services.

SECTION 4. MONITORING AND ENVIRONMENTAL ASSESSMENT


Article 204

Monitoring of the risks or effects of pollution

1. States shall, consistent with the rights of other 
States, endeavour, as far as practicable, directly or 
through the competent international organizations, to 
observe, measure, evaluate and analyse, by recognized 
scientific methods, the risks or effects of pollution of 
the marine environment.

2. In particular, States shall keep under surveillance 
the effects of any activities which they permit or in 
which they engage in order to determine whether these 
activities are likely to pollute the marine environment.

Article 205

Publication of reports

States shall publish reports of the results obtained 
pursuant to article 204 or provide such reports at 
appropriate intervals to the competent international 
organizations, which should make them available to all 
States.

Article 206

Assessment of potential effects of activities

When States have reasonable grounds for believing that 
planned activities under their jurisdiction or control 
may cause substantial pollution of or significant and 
harmful changes to the marine environment, they shall, 
as far as practicable, assess the potential effects of 
such activities on the marine environment and shall 
communicate reports of the results of such assessments 
in the manner provided in article 205.

SECTION 5. INTERNATIONAL RULES AND NATIONAL LEGISLATION 
TO PREVENT, REDUCE AND CONTROL POLLUTION OF THE MARINE 
ENVIRONMENT

Article 207

Pollution from land-based sources

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from land-based sources, including rivers, estuaries, 
pipelines and outfall structures, taking into account 
internationally agreed rules, standards and recommended 
practices and procedures.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control pollution of the marine 
environment from land-based sources, taking into account 
characteristic regional features, the economic capacity 
of developing States and their need for economic 
development. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

5. Laws, regulations, measures, rules, standards and 
recommended practices and procedures referred to in 
paragraphs 1, 2 and 4 shall include those designed to 
minimize, to the fullest extent possible, the release of 
toxic, harmful or noxious substances, especially those 
which are persistent, into the marine environment.

Article 208

Pollution from sea-bed activities subject to national 
jurisdiction


1. Coastal States shall adopt laws and regulations to 
prevent, reduce and control pollution of the marine 
environment arising from or in connection with sea-bed 
activities subject to their jurisdiction and from 
artificial islands, installations and structures under 
their jurisdiction, pursuant to articles 60 and 80.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall be no less 
effective than international rules, standards and 
recommended practices and procedures.

4. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

5. States, acting especially through competent 
international organizations or diplomatic conference, 
shall establish global and regional rules, standards and 
recommended practices and procedures to prevent, reduce 
and control pollution of the marine environment referred 
to in paragraph 1. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

Article 209

Pollution from activities in the Area

1. International rules, regulations and procedures shall 
be established in accordance with Part XI to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area. Such rules, regulations and 
procedures shall be re-examined from time to time as 
necessary.

2. Subject to the relevant provisions of this section, 
States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area undertaken by vessels, 
installations, structures and other devices flying their 
flag or of their registry or operating under their 
authority, as the case may be. The requirements of such 
laws and regulations shall be no less effective than the 
international rules, regulations and procedures referred 
to in paragraph 1.

Article 210

Pollution by dumping

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
by dumping.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall ensure that 
dumping is not carried out without the permission of the 
competent authorities of States.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control such pollution. Such rules, 
standards and recommended practices and procedures shall 
be re-examined from time to time as necessary.

5. Dumping within the territorial sea and the exclusive 
economic zone or onto the continental shelf shall not be 
carried out without the express prior approval of the 
coastal State, which has the right to permit, regulate 
and control such dumping after due consideration of the 
matter with other States which by reason of their 
geographical situation may be adversely affected 
thereby.

6. National laws, regulations and measures shall be no 
less effective in preventing, reducing and controlling 
such pollution than the global rules and standards.

Article 211

Pollution from vessels

1. States, acting through the competent international 
organization or general diplomatic conference, shall 
establish international rules and standards to prevent, 
reduce and control pollution of the marine environment 
from vessels and promote the adoption, in the same 
manner, wherever appropriate, of routeing systems 
designed to minimize the threat of accidents which might 
cause pollution of the marine environment, including the 
coastline, and pollution damage to the related interests 
of coastal States. Such rules and standards shall, in 
the same manner, be re-examined from time to time as 
necessary.

2. States shall adopt laws and regulations for the 
prevention, reduction and control of pollution of the 
marine environment from vessels flying their flag or of 
their registry. Such laws and regulations shall at least 
have the same effect as that of generally accepted 
international rules and standards established through 
the competent international organization or general 
diplomatic conference.

3. States which establish particular requirements for 
the prevention, reduction and control of pollution of 
the marine environment as a condition for the entry of 
foreign vessels into their ports or internal waters or 
for a call at their off-shore terminals shall give due 
publicity to such requirements and shall communicate 
them to the competent international organization. 
Whenever such requirements are established in identical 
form by two or more coastal States in an endeavour to 
harmonize policy, the communication shall indicate which 
States are participating in such co-operative 
arrangements. Every State shall require the master of a 
vessel flying its flag or of its registry, when 
navigating within the territorial sea of a State 
participating in such co-operative arrangements, to 
furnish, upon the request of that State, information as 
to whether it is proceeding to a State of the same 
region participating in such co-operative arrangements 
and, if so, to indicate whether it complies with the 
port entry requirements of that State. This article is 
without prejudice to the continued exercise by a vessel 
of its right of innocent passage or to the application 
of article 25, paragraph 2.

4. Coastal States may, in the exercise of their 
sovereignty within their territorial sea, adopt laws and 
regulations for the prevention, reduction and control of 
marine pollution from foreign vessels, including vessels 
exercising the right of innocent passage. Such laws and 
regulations shall, in accordance with Part II, section 
3, not hamper innocent passage of foreign vessels.

5. Coastal States, for the purpose of enforcement as 
provided for in section 6, may in respect of their 
exclusive economic zones adopt laws and regulations for 
the prevention, reduction and control of pollution from 
vessels conforming to and giving effect to generally 
accepted international rules and standards established 
through the competent international organization or 
general diplomatic conference.

6. (a) Where the international rules and standards 
referred to in paragraph 1 are inadequate to meet 
special circumstances and coastal States have reasonable 
grounds for believing that a particular, clearly defined 
area of their respective exclusive economic zones is an 
area where the adoption of special mandatory measures 
for the prevention of pollution from vessels is required 
for recognized technical reasons in relation to its 
oceanographical and ecological conditions, as well as 
its utilization or the protection of its resources and 
the particular character of its traffic, the coastal 
States, after appropriate consultations through the 
competent international organization with any other 
States concerned, may, for that area, direct a 
communication to that organization, submitting 
scientific and technical evidence in support and 
information on necessary reception facilities. Within 12 
months after receiving such a communication, the 
organization shall determine whether the conditions in 
that area correspond to the requirements set out above. 
If the organization so determines, the coastal States 
may, for that area, adopt laws and regulations 
for the prevention, reduction and control of pollution 
from vessels implementing such international rules and 
standards or navigational practices as are made 
applicable, through the organization, for special areas. 
These laws and regulations shall not become applicable 
to foreign vessels until 15 months after the submission 
to the communication to the organization.

(b) The coastal States shall publish the limits of any 
such particular, clearly defined area.

(c) If the coastal States intend to adopt additional 
laws and regulations for the same area for the 
prevention, reduction and control of pollution from 
vessels, they shall, when submitting the aforesaid 
communication, at the same time notify the organization 
thereof. Such additional laws and regulations may relate 
to discharges or navigational practices but shall not 
require foreign vessels to observe design, construction, 
manning or equipment standards other than generally 
accepted international rules and standards; they shall 
become applicable to foreign vessels 15 months after the 
submission of the communication to the organization, 
provided that the organization agrees within 12 months 
after the submission of the communication.

7. The international rules and standards referred to in 
this article should include inter alia those relating to 
prompt notification to coastal States, whose coastline 
or related interests may be affected by incidents, 
including maritime casualties, which involve discharges 
or probability of discharges.

Article 212

Pollution from or through the atmosphere

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from or through the atmosphere, applicable to the air 
space under their sovereignty and to vessels flying 
their flag or vessels or aircraft of their registry, 
taking into account internationally agreed rules, 
standards and recommended practices and procedures and 
the safety of air navigation.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control such pollution.

SECTION 6. ENFORCEMENT

Article 213

Enforcement with respect to pollution from land-based 
sources

States shall enforce their laws and regulations adopted 
in accordance with article 207 and shall adopt laws and 
regulations and take other measures necessary to 
implement applicable international rules and standards 
established through competent international organiza-
tions or diplomatic conference to prevent, reduce and 
control pollution of the marine environment from land-
based sources.

Article 214

Enforcement with respect to pollution from sea-bed 
activities


States shall enforce their laws and regulations adopted 
in accordance with article 208 and shall adopt laws and 
regulations and take other measures necessary to 
implement applicable international rules and standards 
established through competent international 
organizations or diplomatic conference to prevent, 
reduce and control pollution of the marine environment 
arising from or in connection with sea-bed activities 
subject to their jurisdiction and from artificial 
islands, installations and structures under their 
jurisdiction, pursuant to articles 60 and 80.

Article 215

Enforcement with respect to pollution from activities in 
the Area

Enforcement of international rules, regulations and 
procedures established in accordance with Part XI to 
prevent, reduce and control pollution of the marine 
environment from activities in the Area shall be 
governed by that Part.

Article 216

Enforcement with respect to pollution by dumping

1. Laws and regulations adopted in accordance with this 
Convention and applicable international rules and 
standards established through competent international 
organizations or diplomatic conference for the 
prevention, reduction and control of pollution of the 
marine environment by dumping shall be enforced:

(a) by the coastal State with regard to dumping within 
its territorial sea or its exclusive economic zone or 
onto its continental shelf;

(b) by the flag State with regard to vessels flying its 
flag or vessels or aircraft of its registry;

(c) by any State with regard to acts of loading of 
wastes or other matter occurring within its territory or 
at its off-shore terminals. 2. No State shall be obliged 
by virtue of this article to institute proceedings when 
another State has already instituted proceedings 
in accordance with this article.

Article 217

Enforcement by flag States

1. States shall ensure compliance by vessels flying 
their flag or of their registry with applicable 
international rules and standards, established through 
the competent international organization or general 
diplomatic conference, and with their laws and 
regulations adopted in accordance with this Convention 
for the prevention, reduction and control of pollution 
of the marine environment from vessels and shall 
accordingly adopt laws and regulations and take other 
measures necessary for their implementation. Flag States 
shall provide for the effective enforcement of such 
rules, standards, laws and regulations, irrespective of 
where a violation occurs.

2. States shall, in particular, take appropriate 
measures in order to ensure that vessels flying their 
flag or of their registry are prohibited from sailing, 
until they can proceed to sea in compliance with the 
requirements of the international rules and standards 
referred to in paragraph 1, including requirements in 
respect of design, construction, equipment and manning 
of vessels.

3. States shall ensure that vessels flying their flag or 
of their registry carry on board certificates required 
by and issued pursuant to international rules and 
standards referred to in paragraph 1. States shall 
ensure that vessels flying their flag are periodically 
inspected in order to verify that such certificates are 
in conformity with the actual condition of the vessels. 
These certificates shall be accepted by other States as 
evidence of the condition of the vessels and shall be 
regarded as having the same force as certificates issued 
by them, unless there are clear grounds for believing 
that the condition of the vessel does not correspond 
substantially with the particulars of the certificates.

4. If a vessel commits a violation of rules and 
standards established through the competent inter-
national organization or general diplomatic conference, 
the flag State, without prejudice to articles 218, 220 
and 228, shall provide for immediate investigation and 
where appropriate institute proceedings in respect of 
the alleged violation irrespective of where the 
violation occurred or where the pollution caused by such 
violation has occurred or has been spotted. 

5. Flag States conducting an investigation of the 
violation may request the assistance of any other State 
whose co-operation could be useful in clarifying the 
circumstances of the case. States shall endeavour to 
meet appropriate requests of flag States.

6. States shall, at the written request of any State, 
investigate any violation alleged to have been committed 
by vessels flying their flag. If satisfied that 
sufficient evidence is available to enable proceedings 
to be brought in respect of the alleged violation, flag 
States shall without delay institute such proceedings in 
accordance with their laws.

7. Flag States shall promptly inform the requesting 
State and the competent international organization of 
the action taken and its outcome. Such information shall 
be available to all States.

8. Penalties provided for by the laws and regulations of 
States for vessels flying their flag shall be adequate 
in severity to discourage violations wherever they 
occur.

Article 218

Enforcement by port States

1. When a vessel is voluntarily within a port or at an 
off-shore terminal of a State, that State may undertake 
investigations and, where the evidence so warrants, 
institute proceedings in respect of any discharge from 
that vessel outside the internal waters, territorial sea 
or exclusive economic zone of that State in violation of 
applicable international rules and standards established 
through the competent international organization or 
general diplomatic conference.

2. No proceedings pursuant to paragraph 1 shall be 
instituted in respect of a discharge violation in the 
internal waters, territorial sea or exclusive economic 
zone of another State unless requested by that State, 
the flag State, or a State damaged or threatened by the 
discharge violation, or unless the violation has caused 
or is likely to cause pollution in the internal waters, 
territorial sea or exclusive economic zone of the State 
instituting the proceedings. 

3. When a vessel is voluntarily within a port or at an 
off-shore terminal of a State, that State shall, as far 
as practicable, comply with requests from any State for 
investigation of a discharge violation referred to in 
paragraph 1, believed to have occurred in, caused, or 
threatened damage to the internal waters, territorial 
sea or exclusive economic zone of the requesting State. 
It shall likewise, as far as practicable, comply with 
requests from the flag State for investigation of such a 
violation, irrespective of where the violation occurred.

4. The records of the investigation carried out by a 
port State pursuant to this article shall be transmitted 
upon request to the flag State or to the coastal State. 
Any proceedings instituted by the port State on the 
basis of such an investigation may, subject to section 
7, be suspended at the request of the coastal State when 
the violation has occurred within its internal waters, 
territorial sea or exclusive economic zone. The evidence 
and records of the case, together with any bond or other 
financial security posted with the authorities of the 
port State, shall in that event be transmitted to the 
coastal State. Such transmittal shall preclude the 
continuation of proceedings in the port State.

Article 219

Measures relating to seaworthiness of vessels to avoid 
pollution

Subject to section 7, States which, upon request or on 
their own initiative, have ascertained that a vessel 
within one of their ports or at one of their off-shore 
terminals is in violation of applicable international 
rules and standards relating to seaworthiness of vessels 
and thereby threatens damage to the marine environment 
shall, as far as practicable, take administrative 
measures to prevent the vessel from sailing. Such States 
may permit the vessel to proceed only to the nearest 
appropriate repair yard and, upon removal of the causes 
of the violation, shall permit the vessel to continue 
immediately.

Article 220

Enforcement by coastal States

1. When a vessel is voluntarily within a port or at an 
off-shore terminal of a State, that State may, subjec

United Nations Convention on the Law of the Sea




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8. UNITED NATIONS CONVENTION ON THE LAW OF THE SEA

(Montego Bay, 10 December 1982)

The States Parties to this Convention, (...) Recognizing 
the desirability of establishing through this 
Convention, with due regard for the sovereignty of all 
States, a legal order for the seas and oceans which will 
facilitate international communication, and will promote 
the peaceful uses of the seas and oceans, the equitable 
and efficient utilization of their resources, the 
conservation of their living resources, and the study, 
protection and preservation of the marine environment, 
(...)

PART I

INTRODUCTION

Article 1

Use of terms and scope

1. For the purposes of this Convention:

(1) "Area" means the sea-bed and ocean floor and subsoil 
thereof, beyonds the limits of national jurisdiction;
(...)

(4) "pollution of the marine environment" means the 
introduction by man, directly or indirectly, of 
substances or energy into the marine environment, 
including estuaries, which results or is likely to 
result in such deleterious effects as harm to living 
resources and marine life, hazards to human health, 
hindrance to marine activities, including fishing and 
other legitimate uses of the sea, impairment of quality 
for use of sea water and reduction of amenities;

(5) (a) "dumping" means:

(i) any deliberate disposal of wastes or other matter 
from vessels, aircraft, platforms or other man-made 
structures at sea;

(ii) any deliberate disposal of vessels, aircraft, 
platforms or other man-made structures at sea;

(b) "dumping" does not include:

(i) the disposal of wastes or other matter incidental 
to, or derived from the normal operations of vessels, 
aircraft, platforms or other man-made structures at sea 
and their equipment, other than wastes or other matter 
transported by or to vessels, aircraft, platforms or 
other man-made structures at sea, operating for the 
purpose of disposal of such matter or derived from the 
treatment of such wastes or other matter on such 
vessels, aircraft, platforms or structures;

(ii) placement of matter for a purpose other than the 
mere disposal thereof, provided that such placement is 
not contrary to the aims of this Convention.
(...)

PART II

TERRITORIAL SEA AND CONTIGUOUS ZONE

SECTION 3. INNOCENT PASSAGE IN THE TERRITORIAL SEA

Article 19

Meaning of innocent passage

(...)

2. Passage of a foreign ship shall be considered to be 
prejudicial to the peace, good order or security of the 
coastal State if in the territorial seas it engages in 
any of the following activities: (...)

(h)any act of wilful and serious pollution contrary to 
this Convention; (...)

Article 21

Laws and regulations of the coastal State relating to 
innocent passage

1. The coastal State may adopt laws and regulations, in 
conformity with the provisions of this Convention and 
other rules of international law, relating to innocent 
passage through the territorial sea, in respect of all 
or any of the following:

(...)

(f) the preservation of the environment of the coastal 
State and the prevention, reduction and control of 
pollution thereof; (...)

Article 22

Sea lanes and traffic separation schemes in the 
territorial sea

1. The coastal State may, where necessary having regard 
to the safety of navigation, require foreign ships 
exercising the right of innocent passage through its 
territorial sea to use such sea lanes and traffic 
separation schemes as it may designate or prescribe for 
the regulation of the passage of ships.

2. In particular, tankers, nuclear-powered ships and 
ships carrying nuclear or other inherently dangerous or 
noxious substances or materials may be required to 
confine their passage to such sea lanes.

(...)

Article 23

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances 
shall, when exercising the right of innocent passage 
through the territorial sea, carry documents and observe 
special precautionary measures established for such 
ships by international agreements.

(...)

PART III

STRAITS USED FOR INTERNATIONAL NAVIGATION

SECTION 2. TRANSIT PASSAGE

Article 39

Duties of ships and aircraft during transit passage

(...)

2. Ships in transit passage shall:

(...)

(b) comply with generally accepted international 
regulations, procedures and practices for the 
prevention, reduction and control of pollution from 
ships. (...)

Article 42

Laws and regulations of States bordering straits 
relating to transit passage

1. Subject to the provisions of this section, States 
bordering straits may adopt laws and regulations 
relating to transit passage through straits, in respect 
of all or any of the following:

(...)

(b) the prevention, reduction and control of pollution, 
by giving effect to applicable international regulations 
regarding the discharge of oil, oily wastes and other 
noxious substances in the straits;

(...)

Article 43

Navigational and safety aids and other improvements and 
the prevention, reduction and control of pollution

User States and States bordering a strait should by 
agreement co-operate:

(...)

(b) for the prevention, reduction and control of 
pollution from ships.

PART IV

ARCHIPELAGIC STATES

Article 54

Duties of ships and aircraft during their passage, 
research and survey activities, duties of the 
archipelagic State and laws and regulations of the 
archipelagic State relating to archipelagic sea lanes 
passage Articles 39, 40, 42 and 44 apply mutatis 
mutandis to archipelagic sea lanes passage.

PART V

EXCLUSIVE ECONOMIC ZONE

Article 56

Rights, jurisdiction and duties of the coastal State in 
the exclusive economic zone 

1. In the exclusive economic zone, the coastal State 
has:

(...)

(b) jurisdiction as provided for in the relevant 
provisions of this Convention with regard to:

(...)

(iii) the protection and preservation of the marine 
environment; (...)

Article 60

Artificial islands, installations and structures in the 
exclusive economic zone

(...)

3. Due notice must be given of the construction of such 
artificial islands, installations or structures, and 
permanent means for giving warning of their presence 
must be maintained. Any installations or structures 
which are abandoned or disused shall be removed to 
ensure safety of navigation, taking into account any 
generally accepted international standards established 
in this regard by the competent international 
organization. Such removal shall also have due regard to 
fishing, the protection of the marine environment and 
the rights and duties of other States. Appropriate 
publicity shall be given to the depth, position and 
dimensions of any installations or structures not 
entirely removed.

(...)

Article 65

Marine mammals

Nothing in this Part restricts the right of a coastal 
State or the competence of an international 
organization, as appropriate, to prohibit, limit or 
regulate the exploitation of marine mammals more 
strictly than provided for in this Part. States shall 
co-operate with a view to the conservation of marine 
mammals and in the case of cetaceans shall in particular 
work through the appropriate international organizations 
for their conservation, management and study.

PART VI

CONTINENTAL SHELF

Article 79

Submarine cables and pipelines on the continental shelf

(...)

2. Subject to its right to take reasonable measures for 
the exploration of the continental shelf, the 
exploitation of its natural resources and the 
prevention, reduction and control of pollution from 
pipelines, the coastal State may not impede the laying 
or maintenance of such cables or pipelines.

(...)

Article 80

Artificial islands, installations and structures on the 
continental shelf

Article 60 applies mutatis mutandis to artificial 
islands, installations and structures on the continental 
shelf.

PART VII

HIGH SEAS

SECTION 1. GENERAL PROVISIONS

Article 94

Duties of the flag State

(...)

7. Each State shall cause an inquiry to be held by or 
before a suitably qualified person or persons into every 
marine casualty or incident of navigation on the high 
seas involving a ship flying its flag and causing loss 
of life or serious injury to nationals of another state 
or serious damage to ships or installations of another 
State or to the marine environment. The flag State and 
the other State shall co-operate in the conduct of any 
inquiry held by that other State into any such marine 
casualty or incident of navigation.

SECTION 2. CONSERVATION AND MANAGEMENT OF THE LIVING 
RESOURCES OF THE HIGH SEAS

Article 120

Marine mammals

Article 65 also applies to the conservation and 
management of marine mammals in the high seas.


PART IX ENCLOSED OR SEMI-ENCLOSED SEAS

Article 123

Co-operation of States bordering enclosed or semi-
enclosed seas

States bordering an enclosed or semi-enclosed sea should 
co-operate with each other in the exercise of their 
rights and in the performance of their duties under this 
Convention. To this end they shall endeavour, directly 
or through an appropriate regional organization:

(...)

(b) to co-ordinate the implementation of their rights 
and duties with respect to the protection and 
preservation of the marine environment;

(...)


PART XI

THE AREA

SECTION 2. PRINCIPLES GOVERNING THE AREA

Article 142

Rights and legitimate interests of coastal States

(...)

3. Neither this Part nor any rights granted or exercised 
pursuant thereto shall affect the rights of coastal 
States to take such measures consistent with the 
relevant provisions of Part XII as may be necessary to 
prevent, mitigate or eliminate grave and imminent danger 
to their coastline, or related interests from pollution 
or threat thereof or from other hazardous occurrences 
resulting from or caused by any activities in the Area.


Article 145

Protection of the marine environment

Necessary measures shall be taken in accordance with 
this Convention with respect to activities in the Area 
to ensure effective protection for the marine 
environment from harmful effects which may arise from 
such activities. To this end the Authority shall adopt 
appropriate rules, regulations and procedures for inter 
alia:

(a) the prevention, reduction and control of pollution 
and other hazards to the marine environment, including 
the coastline, and of interference with the ecological 
balance of the marine environment, particular attention 
being paid to the need for protection from harmful 
effects of such activities as drilling, dredging, 
excavation, disposal of waste, construction and 
operation or maintenance of installations, pipelines and 
other devices related to such activities;

(b) the protection and conservation of the natural 
resources of the Area and the prevention of damage to 
the flora and fauna of the marine environment.

SECTION 4. THE AUTHORITY

SUBSECTION C. THE COUNCIL

Article 162

Powers and functions

(...)

2. In addition, the Council shall:

(...)

(w) issue emergency orders, which may include orders for 
the suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area;

(x) disapprove areas for exploitation by contractors or 
the Enterprise in cases where substantial evidence 
indicates the risk of serious harm to the marine 
environment;

(...)

Article 165

The Legal and Technical Commission

1. Members of the Legal and Technical Commission shall 
have appropriate qualifications such as those relevant 
to exploration for and exploitation and processing of 
mineral resources, oceanology, protection of the marine 
environment, or economic or legal matters relating to 
ocean mining and related fields of expertise. The 
Council shall endeavour to ensure that the membership of 
the Commission reflects all appropriate qualifications.

2. The Commission shall:

(...)

(e) make recommendations to the Council on the 
protection of the marine environment, taking into 
account the views of recognized experts in that field;

(f) formulate and submit to the Council the rules, 
regulations and procedures referred to in article 162, 
paragraph 2(o), taking into account all relevant factors 
including assessments of the environmental implications 
of activities in the Area;

(...)

(h) make recommendations to the Council regarding the 
establishment of a monitoring programme to observe, 
measure, evaluate and analyse, by recognized scientific 
methods, on a regular basis, the risks or effects of 
pollution of the marine environment resulting from 
activities in the Area, ensure that existing regulations 
are adequate and are complied with and co-ordinate the 
implementation of the monitoring programme approved by 
the Council;

(...)

(k) make recommendations to the Council to issue 
emergency orders, which may include orders for the 
suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area. Such recommendations shall be 
taken up by the Council on a priority basis;

(l) make recommendations to the Council to disapprove 
areas for exploitation by contractors or the Enterprise 
in cases where substantial evidence indicates the risk 
of serious harm to the marine environment;

(...)

PART XII

PROTECTION AND PRESERVATION OF THE MARINE ENVIRONMENT
SECTION 1. GENERAL PROVISIONS

Article 192

General obligation

States have the obligation to protect and preserve the 
marine environment.

Article 193

Sovereign right of States to exploit their natural 
resources

States have the sovereign right to exploit their natural 
resources pursuant to their environmental policies and 
in accordance with their duty to protect and preserve 
the marine environment.

Article 194

Measures to prevent, reduce and control pollution of the 
marine environment

1. States shall take, individually or jointly as 
appropriate, all measures consistent with this 
Convention that are necessary to prevent, reduce and 
control pollution of the marine environment from any 
source, using for this purpose the best practicable 
means at their disposal and in accordance with their 
capabilities, and they shall endeavour to harmonize 
their policies in this connection.

2. States shall take all measures necessary to ensure 
that activities under their jurisdiction or control are 
so conducted as not to cause damage by pollution to 
other States and their environment, and that pollution 
arising from incidents or activities under their 
jurisdiction or control does not spread beyond the areas 
where they exercise sovereign rights in accordance with 
this Convention. 3. The measures taken pursuant to this 
Part shall deal with all sources of pollution of the 
marine environment. These measures shall include, inter 
alia, those designed to minimize to the fullest possible 
extent:

(a) the release of toxic, harmful or noxious substances, 
especially those which are persistent, from land-based 
sources, from or through the atmosphere or by dumping;

(b) pollution from vessels, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, preventing 
intentional and unintentional discharges, and regulating 
the design, construction, equipment, operation and 
manning of vessels;

(c) pollution from installations and devices used in 
exploration or exploitation of the natural resources of 
the sea-bed and subsoil, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, and regulating 
the design, construction, equipment, operation and 
manning of such installations or devices;

(d) pollution from other installations and devices 
operating in the marine environment, in particular 
measures for preventing accidents and dealing with 
emergencies, ensuring the safety of operations at sea, 
and regulating the design, construction, equipment, 
operation and manning of such installations or devices.

4. In taking measures to prevent, reduce or control 
pollution of the marine environment, States shall 
refrain from unjustifiable interference with activities 
carried out by other States in the exercise of their 
rights and in pursuance of their duties in conformity 
with this Convention.

5. The measures taken in accordance with this Part shall 
include those necessary to protect and preserve rare or 
fragile ecosystems as well as the habitat of depleted, 
threatened or endangered species and other forms of 
marine life.

Article 195

Duty not to transfer damage or hazards or transform one 
type of pollution into another In taking measures to 
prevent, reduce and control pollution of the marine 
environment, States shall act so as not to transfer, 
directly or indirectly, damage or hazards from one area 
to another or transform one type of pollution into 
another.

Article 196

Use of technologies or introduction of alien or new 
species

1. States shall take all measures necessary to prevent, 
reduce and control pollution of the marine environment 
resulting from the use of technologies under their 
jurisdiction or control, or the intentional or 
accidental introduction of species, alien or new, to a 
particular part of the marine environment, which may 
cause significant and harmful changes thereto.

2. This article does not affect the application of this 
Convention regarding the prevention, reduction and 
control of pollution of the marine environment.

SECTION 2. GLOBAL AND REGIONAL CO-OPERATION

Article 197

Co-operation on a global or regional basis

States shall co-operate on a global basis and, as 
appropriate, on a regional basis, directly or through 
competent international organizations, in formulating 
and elaborating international rules, standards and 
recommended practices and procedures consistent 
with this Convention, for the protection and 
preservation of the marine environment, taking into 
account characteristic regional features.

Article 198

Notification of imminent or actual damage

When a State becomes aware of cases in which the marine 
environment is in imminent danger of being damaged or 
has been damaged by pollution, it shall immediately 
notify other States it deems likely to be affected by 
such damage, as well as the competent international 
organizations.

Article 199

Contingency plans against pollution

In the cases referred to in article 198, States in the 
area affected, in accordance with their capabilities, 
and the competent international organizations shall co-
operate, to the extent possible, in eliminating the 
effects of pollution and preventing or minimizing the 
damage. To this end, States shall jointly develop and 
promote contingency plans for responding to pollution 
incidents in the marine environment.

Article 200

Studies, research programmes and exchange of information 
and data States shall co-operate, directly or through 
competent international organizations, for the purpose 
of promoting studies, undertaking programmes of 
scientific research and encouraging the exchange of 
information and data acquired about pollution of the 
marine environment. They shall endeavour to participate 
actively in regional and global programmes to acquire 
knowledge for the assessment of the nature and extent of 
pollution, exposure to it, and its pathways, risks and 
remedies.

Article 201

Scientific criteria for regulations

In the light of the information and data acquired 
pursuant to article 200, States shall co-operate, 
directly or through competent international 
organizations, in establishing appropriate scientific 
criteria for the formulation and elaboration of rules, 
standards and recommended practices and procedures for 
the prevention, reduction and control of pollution of 
the marine environment.

SECTION 3. TECHNICAL ASSISTANCE

Article 202

Scientific and technical assistance to developing States

States shall, directly or through competent 
international organizations:

(a) promote programmes of scientific, educational, 
technical and other assistance to developing States for 
the protection and preservation of the marine 
environment and the prevention, reduction and control of 
marine pollution. Such assistance shall include, inter 
alia:

(i) training of their scientific and technical 
personnel;

(ii) facilitating their participation in relevant 
international programmes;

(iii) supplying them with necessary equipment and 
facilities; 

(iv) enhancing their capacity to manufacture such 
equipment; 

(v) advice on and developing facilities for research, 
monitoring, educational and other programmes;

(b) provide appropriate assistance, especially to 
developing States, for the minimization of the effects 
of major incidents which may cause serious pollution of 
the marine environment;

(c) provide appropriate assistance, especially to 
developing States, concerning the preparation of 
environmental assessments.

Article 203

Preferential treatment for developing States

Developing States shall, for the purposes of prevention, 
reduction and control of pollution of the marine 
environment or minimization of its effects, be granted 
preference by international organizations in:

(a) the allocation of appropriate funds and technical 
assistances; and

(b) the utilization of their specialized services.

SECTION 4. MONITORING AND ENVIRONMENTAL ASSESSMENT


Article 204

Monitoring of the risks or effects of pollution

1. States shall, consistent with the rights of other 
States, endeavour, as far as practicable, directly or 
through the competent international organizations, to 
observe, measure, evaluate and analyse, by recognized 
scientific methods, the risks or effects of pollution of 
the marine environment.

2. In particular, States shall keep under surveillance 
the effects of any activities which they permit or in 
which they engage in order to determine whether these 
activities are likely to pollute the marine environment.

Article 205

Publication of reports

States shall publish reports of the results obtained 
pursuant to article 204 or provide such reports at 
appropriate intervals to the competent international 
organizations, which should make them available to all 
States.

Article 206

Assessment of potential effects of activities

When States have reasonable grounds for believing that 
planned activities under their jurisdiction or control 
may cause substantial pollution of or significant and 
harmful changes to the marine environment, they shall, 
as far as practicable, assess the potential effects of 
such activities on the marine environment and shall 
communicate reports of the results of such assessments 
in the manner provided in article 205.

SECTION 5. INTERNATIONAL RULES AND NATIONAL LEGISLATION 
TO PREVENT, REDUCE AND CONTROL POLLUTION OF THE MARINE 
ENVIRONMENT

Article 207

Pollution from land-based sources

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from land-based sources, including rivers, estuaries, 
pipelines and outfall structures, taking into account 
internationally agreed rules, standards and recommended 
practices and procedures.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control pollution of the marine 
environment from land-based sources, taking into account 
characteristic regional features, the economic capacity 
of developing States and their need for economic 
development. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

5. Laws, regulations, measures, rules, standards and 
recommended practices and procedures referred to in 
paragraphs 1, 2 and 4 shall include those designed to 
minimize, to the fullest extent possible, the release of 
toxic, harmful or noxious substances, especially those 
which are persistent, into the marine environment.

Article 208

Pollution from sea-bed activities subject to national 
jurisdiction


1. Coastal States shall adopt laws and regulations to 
prevent, reduce and control pollution of the marine 
environment arising from or in connection with sea-bed 
activities subject to their jurisdiction and from 
artificial islands, installations and structures under 
their jurisdiction, pursuant to articles 60 and 80.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall be no less 
effective than international rules, standards and 
recommended practices and procedures.

4. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

5. States, acting especially through competent 
international organizations or diplomatic conference, 
shall establish global and regional rules, standards and 
recommended practices and procedures to prevent, reduce 
and control pollution of the marine environment referred 
to in paragraph 1. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

Article 209

Pollution from activities in the Area

1. International rules, regulations and procedures shall 
be established in accordance with Part XI to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area. Such rules, regulations and 
procedures shall be re-examined from time to time as 
necessary.

2. Subject to the relevant provisions of this section, 
States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area undertaken by vessels, 
installations, structures and other devices flying their 
flag or of their registry or operating under their 
authority, as the case may be. The requirements of such 
laws and regulations shall be no less effective than the 
international rules, regulations and procedures referred 
to in paragraph 1.

Article 210

Pollution by dumping

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
by dumping.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall ensure that 
dumping is not carried out without the permission of the 
competent authorities of States.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control such pollution. Such rules, 
standards and recommended practices and procedures shall 
be re-examined from time to time as necessary.

5. Dumping within the territorial sea and the exclusive 
economic zone or onto the continental shelf shall not be 
carried out without the express prior approval of the 
coastal State, which has the right to permit, regulate 
and control such dumping after due consideration of the 
matter with other States which by reason of their 
geographical situation may be adversely affected 
thereby.

6. National laws, regulations and measures shall be no 
less effective in preventing, reducing and controlling 
such pollution than the global rules and standards.

Article 211

Pollution from vessels

1. States, acting through the competent international 
organization or general diplomatic conference, shall 
establish international rules and standards to prevent, 
reduce and control pollution of the marine environment 
from vessels and promote the adoption, in the same 
manner, wherever appropriate, of routeing systems 
designed to minimize the threat of accidents which might 
cause pollution of the marine environment, including the 
coastline, and pollution damage to the related interests 
of coastal States. Such rules and standards shall, in 
the same manner, be re-examined from time to time as 
necessary.

2. States shall adopt laws and regulations for the 
prevention, reduction and control of pollution of the 
marine environment from vessels flying their flag or of 
their registry. Such laws and regulations shall at least 
have the same effect as that of generally accepted 
international rules and standards established through 
the competent international organization or general 
diplomatic conference.

3. States which establish particular requirements for 
the prevention, reduction and control of pollution of 
the marine environment as a condition for the entry of 
foreign vessels into their ports or internal waters or 
for a call at their off-shore terminals shall give due 
publicity to such requirements and shall communicate 
them to the competent international organization. 
Whenever such requirements are established in identical 
form by two or more coastal States in an endeavour to 
harmonize policy, the communication shall indicate which 
States are participating in such co-operative 
arrangements. Every State shall require the master of a 
vessel flying its flag or of its registry, when 
navigating within the territorial sea of a State 
participating in such co-operative arrangements, to 
furnish, upon the request of that State, information as 
to whether it is proceeding to a State of the same 
region participating in such co-operative arrangements 
and, if so, to indicate whether it complies with the 
port entry requirements of that State. This article is 
without prejudice to the continued exercise by a vessel 
of its right of innocent passage or to the application 
of article 25, paragraph 2.

4. Coastal States may, in the exercise of their 
sovereignty within their territorial sea, adopt laws and 
regulations for the prevention, reduction and control of 
marine pollution from foreign vessels, including vessels 
exercising the right of innocent passage. Such laws and 
regulations shall, in accordance with Part II, section 
3, not hamper innocent passage of foreign vessels.

5. Coastal States, for the purpose of enforcement as 
provided for in section 6, may in respect of their 
exclusive economic zones adopt laws and regulations for 
the prevention, reduction and control of pollution from 
vessels conforming to and giving effect to generally 
accepted international rules and standards established 
through the competent international organization or 
general diplomatic conference.

6. (a) Where the international rules and standards 
referred to in paragraph 1 are inadequate to meet 
special circumstances and coastal States have reasonable 
grounds for believing that a particular, clearly defined 
area of their respective exclusive economic zones is an 
area where the adoption of special mandatory measures 
for the prevention of pollution from vessels is required 
for recognized technical reasons in relation to its 
oceanographical and ecological conditions, as well as 
its utilization or the protection of its resources and 
the particular character of its traffic, the coastal 
States, after appropriate consultations through the 
competent international organization with any other 
States concerned, may, for that area, direct a 
communication to that organization, submitting 
scientific and technical evidence in support and 
information on necessary reception facilities. Within 12 
months after receiving such a communication, the 
organization shall determine whether the conditions in 
that area correspond to the requirements set out above. 
If the organization so determines, the coastal States 
may, for that area, adopt laws and regulations 
for the prevention, reduction and control of pollution 
from vessels implementing such international rules and 
standards or navigational practices as are made 
applicable, through the organization, for special areas. 
These laws and regulations shall not become applicable 
to foreign vessels until 15 months after the submission 
to the communication to the organization.

(b) The coastal States shall publish the limits of any 
such particular, clearly defined area.

(c) If the coastal States intend to adopt additional 
laws and regulations for the same area for the 
prevention, reduction and control of pollution from 
vessels, they shall, when submitting the aforesaid 
communication, at the same time notify the organization 
thereof. Such additional laws and regulations may relate 
to discharges or navigational practices but shall not 
require foreign vessels to observe design, construction, 
manning or equipment standards other than generally 
accepted international rules and standards; they shall 
become applicable to foreign vessels 15 months after the 
submission of the communication to the organization, 
provided that the organization agrees within 12 months 
after the submission of the communication.

7. The international rules and standards referred to in 
this article should include inter alia those relating to 
prompt notification to coastal States, whose coastline 
or related interests may be affected by incidents, 
including maritime casualties, which involve discharges 
or probability of discharges.

Article 212

Pollution from or through the atmosphere

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from or through the atmosphere, applicable to the air 
space under their sovereignty and to vessels flying 
their flag or vessels or aircraft of their registry, 
taking into account internationally agreed rules, 
standards and recommended practices and procedures and 
the safety of air navigation.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control such pollution.

SECTION 6. ENFORCEMENT

Article 213

Enforcement with respect to pollution from land-based 
sources

States shall enforce their laws and regulations adopted 
in accordance with article 207 and shall adopt laws and 
regulations and take other measures necessary to 
implement applicable international rules and standards 
established through competent international organiza-
tions or diplomatic conference to prevent, reduce and 
control pollution of the marine environment from land-
based sources.

Article 214

Enforcement with respect to pollution from sea-bed 
activities


States shall enforce their laws and regulations adopted 
in accordance with article 208 and shall adopt laws and 
regulations and take other measures necessary to 
implement applicable international rules and standards 
established through competent international 
organizations or diplomatic conference to prevent, 
reduce and control pollution of the marine environment 
arising from or in connection with sea-bed activities 
subject to their jurisdiction and from artificial 
islands, installations and structures under their 
jurisdiction, pursuant to articles 60 and 80.

Article 215

Enforcement with respect to pollution from activities in 
the Area

Enforcement of international rules, regulations and 
procedures established in accordance with Part XI to 
prevent, reduce and control pollution of the marine 
environment from activities in the Area shall be 
governed by that Part.

Article 216

Enforcement with respect to pollution by dumping

1. Laws and regulations adopted in accordance with this 
Convention and applicable international rules and 
standards established through competent international 
organizations or diplomatic conference for the 
prevention, reduction and control of pollution of the 
marine environment by dumping shall be enforced:

(a) by the coastal State with regard to dumping within 
its territorial sea or its exclusive economic zone or 
onto its continental shelf;

(b) by the flag State with regard to vessels flying its 
flag or vessels or aircraft of its registry;

(c) by any State with regard to acts of loading of 
wastes or other matter occurring within its territory or 
at its off-shore terminals. 2. No State shall be obliged 
by virtue of this article to institute proceedings when 
another State has already instituted proceedings 
in accordance with this article.

Article 217

Enforcement by flag States

1. States shall ensure compliance by vessels flying 
their flag or of their registry with applicable 
international rules and standards, established through 
the competent international organization or general 
diplomatic conference, and with their laws and 
regulations adopted in accordance with this Convention 
for the prevention, reduction and control of pollution 
of the marine environment from vessels and shall 
accordingly adopt laws and regulations and take other 
measures necessary for their implementation. Flag States 
shall provide for the effective enforcement of such 
rules, standards, laws and regulations, irrespective of 
where a violation occurs.

2. States shall, in particular, take appropriate 
measures in order to ensure that vessels flying their 
flag or of their registry are prohibited from sailing, 
until they can proceed to sea in compliance with the 
requirements of the international rules and standards 
referred to in paragraph 1, including requirements in 
respect of design, construction, equipment and manning 
of vessels.

3. States shall ensure that vessels flying their flag or 
of their registry carry on board certificates required 
by and issued pursuant to international rules and 
standards referred to in paragraph 1. States shall 
ensure that vessels flying their flag are periodically 
inspected in order to verify that such certificates are 
in conformity with the actual condition of the vessels. 
These certificates shall be accepted by other States as 
evidence of the condition of the vessels and shall be 
regarded as having the same force as certificates issued 
by them, unless there are clear grounds for believing 
that the condition of the vessel does not correspond 
substantially with the particulars of the certificates.

4. If a vessel commits a violation of rules and 
standards established through the competent inter-
national organization or general diplomatic conference, 
the flag State, without prejudice to articles 218, 220 
and 228, shall provide for immediate investigation and 
where appropriate institute proceedings in respect of 
the alleged violation irrespective of where the 
violation occurred or where the pollution caused by such 
violation has occurred or has been spotted. 

5. Flag States conducting an investigation of the 
violation may request the assistance of any other State 
whose co-operation could be useful in clarifying the 
circumstances of the case. States shall endeavour to 
meet appropriate requests of flag States.

6. States shall, at the written request of any State, 
investigate any violation alleged to have been committed 
by vessels flying their flag. If satisfied that 
sufficient evidence is available to enable proceedings 
to be brought in respect of the alleged violation, flag 
States shall without delay institute such proceedings in 
accordance with their laws.

7. Flag States shall promptly inform the requesting 
State and the competent international organization of 
the action taken and its outcome. Such information shall 
be available to all States.

8. Penalties provided for by the laws and regulations of 
States for vessels flying their flag shall be adequate 
in severity to discourage violations wherever they 
occur.

Article 218

Enforcement by port States

1. When a vessel is voluntarily within a port or at an 
off-shore terminal of a State, that State may undertake 
investigations and, where the evidence so warrants, 
institute proceedings in respect of any discharge from 
that vessel outside the internal waters, territorial sea 
or exclusive economic zone of that State in violation of 
applicable international rules and standards established 
through the competent international organization or 
general diplomatic conference.

2. No proceedings pursuant to paragraph 1 shall be 
instituted in respect of a discharge violation in the 
internal waters, territorial sea or exclusive economic 
zone of another State unless requested by that State, 
the flag State, or a State damaged or threatened by the 
discharge violation, or unless the violation has caused 
or is likely to cause pollution in the internal waters, 
territorial sea or exclusive economic zone of the State 
instituting the proceedings. 

3. When a vessel is voluntarily within a port or at an 
off-shore terminal of a State, that State shall, as far 
as practicable, comply with requests from any State for 
investigation of a discharge violation referred to in 
paragraph 1, believed to have occurred in, caused, or 
threatened damage to the internal waters, territorial 
sea or exclusive economic zone of the requesting State. 
It shall likewise, as far as practicable, comply with 
requests from the flag State for investigation of such a 
violation, irrespective of where the violation occurred.

4. The records of the investigation carried out by a 
port State pursuant to this article shall be transmitted 
upon request to the flag State or to the coastal State. 
Any proceedings instituted by the port State on the 
basis of such an investigation may, subject to section 
7, be suspended at the request of the coastal State when 
the violation has occurred within its internal waters, 
territorial sea or exclusive economic zone. The evidence 
and records of the case, together with any bond or other 
financial security posted with the authorities of the 
port State, shall in that event be transmitted to the 
coastal State. Such transmittal shall preclude the 
continuation of proceedings in the port State.

Article 219

Measures relating to seaworthiness of vessels to avoid 
pollution

Subject to section 7, States which, upon request or on 
their own initiative, have ascertained that a vessel 
within one of their ports or at one of their off-shore 
terminals is in violation of applicable international 
rules and standards relating to seaworthiness of vessels 
and thereby threatens damage to the marine environment 
shall, as far as practicable, take administrative 
measures to prevent the vessel from sailing. Such States 
may permit the vessel to proceed only to the nearest 
appropriate repair yard and, upon removal of the causes 
of the violation, shall permit the vessel to continue 
immediately.

Article 220

Enforcement by coastal States

1. When a vessel is voluntarily within a port or at an 
off-shore terminal of a State, that State may, subject 
to section 7, institute proceedings in respect of any 
violation of its laws and regulations adopted in 
accordance with this Convention or applicable 
international rules and standards for the prevention, 
reduction and control of pollution from vessels when the 
violation has occurred within the territorial sea or the 
exclusive economic zone of that State.

2. Where there are clear grounds for believing that a 
vessel navigating in the territorial sea of a State has, 
during its passage therein, violated laws and 
regulations of that State adopted in accordance with 
this Convention or applicable international rules and 
standards for the prevention, reduction and control of 
pollution from vessels, that State, without prejudice to 
the application of the relevant provisions of Part II, 
section 3, may undertake physical inspection of the 
vessel relating to the violation and may, where the 
evidence so warrants, institute proceedings, including 
detention of the vessel, in accordance with its laws, 
subject to the provisions of section 7.

3. Where there are clear grounds for believing that a 
vessel navigating in the exclusive economic zone or the 
territorial sea of a State has, in the exclusive 
economic zone, committed a violation of applicable 
international rules and standards for the prevention, 
reduction and control of pollution from vessels or laws 
and regulations of that State conforming and giving 
effect to such rules and standards, that State may 
require the vessel to give information regarding its 
identity and port of registry, its last and its next 
port of call and other relevant information required to 
establish whether a violation has occurred.

4. States shall adopt laws and regulations and take 
other measures so that vessels flying their flag comply 
with requests for information pursuant to paragraph 3.

5. Where there are clear grounds for believing that a 
vessel navigating in the exclusive economic zone or the 
territorial sea of a State has, in the exclusive 
economic zone, committed a violation referred to in 
paragraph 3 resulting in a substantial discharge causing 
or threatening significant pollution of the marine 
environment, that State may undertake physical 
inspection of the vessel for matters relating to the 
violation if the vessel has refused to give information 
or if the information supplied by the vessel is 
manifestly at variance with the evident factual 
situation and if the circumstances of the case justify 
such inspection.

6. Where there is clear objective evidence that a vessel 
navigating in the exclusive economic zone or the 
territorial sea of a State has, in the exclusive 
economic zone, committed a violation referred to in 
paragraph 3 resulting in a discharge causing major 
damage or threat of major damage to the coastline or 
related interests of the coastal State, or to any 
resources of its territorial sea or exclusive economic 
zone, that State may, subject to section 7, provided 
that the evidence so warrants, institute proceedings, 
including detention of the vessel, in accordance with 
its laws.

7. Notwithstanding the provisions of paragraph 6, 
whenever appropriate procedures have been established, 
either through the competent international organization 
or as otherwise agreed, whereby compliance with 
requirements for bonding or other appropriate financial 
security has been assured, the coastal State if bound by 
such procedures shall allow the vessel to proceed.

8. The provisions of paragraphs 3, 4, 5, 6 and 7 also 
apply in respect of national laws and regulations 
adopted pursuant to article 211, paragraph 6.

Article 221

Measures to avoid pollution arising from maritime 
casualties

1. Nothing in this Part shall prejudice the right of 
States, pursuant to international law, both customary 
and conventional, to take and enforce measures beyond 
the territorial sea proportionate to the actual or 
threatened damage to protect their coastline or related 
interests, including fishing, from pollution or threat 
of pollution following upon a mar

United Nations Convention on the Law of the Sea




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8. UNITED NATIONS CONVENTION ON THE LAW OF THE SEA

(Montego Bay, 10 December 1982)

The States Parties to this Convention, (...) Recognizing 
the desirability of establishing through this 
Convention, with due regard for the sovereignty of all 
States, a legal order for the seas and oceans which will 
facilitate international communication, and will promote 
the peaceful uses of the seas and oceans, the equitable 
and efficient utilization of their resources, the 
conservation of their living resources, and the study, 
protection and preservation of the marine environment, 
(...)

PART I

INTRODUCTION

Article 1

Use of terms and scope

1. For the purposes of this Convention:

(1) "Area" means the sea-bed and ocean floor and subsoil 
thereof, beyonds the limits of national jurisdiction;
(...)

(4) "pollution of the marine environment" means the 
introduction by man, directly or indirectly, of 
substances or energy into the marine environment, 
including estuaries, which results or is likely to 
result in such deleterious effects as harm to living 
resources and marine life, hazards to human health, 
hindrance to marine activities, including fishing and 
other legitimate uses of the sea, impairment of quality 
for use of sea water and reduction of amenities;

(5) (a) "dumping" means:

(i) any deliberate disposal of wastes or other matter 
from vessels, aircraft, platforms or other man-made 
structures at sea;

(ii) any deliberate disposal of vessels, aircraft, 
platforms or other man-made structures at sea;

(b) "dumping" does not include:

(i) the disposal of wastes or other matter incidental 
to, or derived from the normal operations of vessels, 
aircraft, platforms or other man-made structures at sea 
and their equipment, other than wastes or other matter 
transported by or to vessels, aircraft, platforms or 
other man-made structures at sea, operating for the 
purpose of disposal of such matter or derived from the 
treatment of such wastes or other matter on such 
vessels, aircraft, platforms or structures;

(ii) placement of matter for a purpose other than the 
mere disposal thereof, provided that such placement is 
not contrary to the aims of this Convention.
(...)

PART II

TERRITORIAL SEA AND CONTIGUOUS ZONE

SECTION 3. INNOCENT PASSAGE IN THE TERRITORIAL SEA

Article 19

Meaning of innocent passage

(...)

2. Passage of a foreign ship shall be considered to be 
prejudicial to the peace, good order or security of the 
coastal State if in the territorial seas it engages in 
any of the following activities: (...)

(h)any act of wilful and serious pollution contrary to 
this Convention; (...)

Article 21

Laws and regulations of the coastal State relating to 
innocent passage

1. The coastal State may adopt laws and regulations, in 
conformity with the provisions of this Convention and 
other rules of international law, relating to innocent 
passage through the territorial sea, in respect of all 
or any of the following:

(...)

(f) the preservation of the environment of the coastal 
State and the prevention, reduction and control of 
pollution thereof; (...)

Article 22

Sea lanes and traffic separation schemes in the 
territorial sea

1. The coastal State may, where necessary having regard 
to the safety of navigation, require foreign ships 
exercising the right of innocent passage through its 
territorial sea to use such sea lanes and traffic 
separation schemes as it may designate or prescribe for 
the regulation of the passage of ships.

2. In particular, tankers, nuclear-powered ships and 
ships carrying nuclear or other inherently dangerous or 
noxious substances or materials may be required to 
confine their passage to such sea lanes.

(...)

Article 23

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances 
shall, when exercising the right of innocent passage 
through the territorial sea, carry documents and observe 
special precautionary measures established for such 
ships by international agreements.

(...)

PART III

STRAITS USED FOR INTERNATIONAL NAVIGATION

SECTION 2. TRANSIT PASSAGE

Article 39

Duties of ships and aircraft during transit passage

(...)

2. Ships in transit passage shall:

(...)

(b) comply with generally accepted international 
regulations, procedures and practices for the 
prevention, reduction and control of pollution from 
ships. (...)

Article 42

Laws and regulations of States bordering straits 
relating to transit passage

1. Subject to the provisions of this section, States 
bordering straits may adopt laws and regulations 
relating to transit passage through straits, in respect 
of all or any of the following:

(...)

(b) the prevention, reduction and control of pollution, 
by giving effect to applicable international regulations 
regarding the discharge of oil, oily wastes and other 
noxious substances in the straits;

(...)

Article 43

Navigational and safety aids and other improvements and 
the prevention, reduction and control of pollution

User States and States bordering a strait should by 
agreement co-operate:

(...)

(b) for the prevention, reduction and control of 
pollution from ships.

PART IV

ARCHIPELAGIC STATES

Article 54

Duties of ships and aircraft during their passage, 
research and survey activities, duties of the 
archipelagic State and laws and regulations of the 
archipelagic State relating to archipelagic sea lanes 
passage Articles 39, 40, 42 and 44 apply mutatis 
mutandis to archipelagic sea lanes passage.

PART V

EXCLUSIVE ECONOMIC ZONE

Article 56

Rights, jurisdiction and duties of the coastal State in 
the exclusive economic zone 

1. In the exclusive economic zone, the coastal State 
has:

(...)

(b) jurisdiction as provided for in the relevant 
provisions of this Convention with regard to:

(...)

(iii) the protection and preservation of the marine 
environment; (...)

Article 60

Artificial islands, installations and structures in the 
exclusive economic zone

(...)

3. Due notice must be given of the construction of such 
artificial islands, installations or structures, and 
permanent means for giving warning of their presence 
must be maintained. Any installations or structures 
which are abandoned or disused shall be removed to 
ensure safety of navigation, taking into account any 
generally accepted international standards established 
in this regard by the competent international 
organization. Such removal shall also have due regard to 
fishing, the protection of the marine environment and 
the rights and duties of other States. Appropriate 
publicity shall be given to the depth, position and 
dimensions of any installations or structures not 
entirely removed.

(...)

Article 65

Marine mammals

Nothing in this Part restricts the right of a coastal 
State or the competence of an international 
organization, as appropriate, to prohibit, limit or 
regulate the exploitation of marine mammals more 
strictly than provided for in this Part. States shall 
co-operate with a view to the conservation of marine 
mammals and in the case of cetaceans shall in particular 
work through the appropriate international organizations 
for their conservation, management and study.

PART VI

CONTINENTAL SHELF

Article 79

Submarine cables and pipelines on the continental shelf

(...)

2. Subject to its right to take reasonable measures for 
the exploration of the continental shelf, the 
exploitation of its natural resources and the 
prevention, reduction and control of pollution from 
pipelines, the coastal State may not impede the laying 
or maintenance of such cables or pipelines.

(...)

Article 80

Artificial islands, installations and structures on the 
continental shelf

Article 60 applies mutatis mutandis to artificial 
islands, installations and structures on the continental 
shelf.

PART VII

HIGH SEAS

SECTION 1. GENERAL PROVISIONS

Article 94

Duties of the flag State

(...)

7. Each State shall cause an inquiry to be held by or 
before a suitably qualified person or persons into every 
marine casualty or incident of navigation on the high 
seas involving a ship flying its flag and causing loss 
of life or serious injury to nationals of another state 
or serious damage to ships or installations of another 
State or to the marine environment. The flag State and 
the other State shall co-operate in the conduct of any 
inquiry held by that other State into any such marine 
casualty or incident of navigation.

SECTION 2. CONSERVATION AND MANAGEMENT OF THE LIVING 
RESOURCES OF THE HIGH SEAS

Article 120

Marine mammals

Article 65 also applies to the conservation and 
management of marine mammals in the high seas.


PART IX ENCLOSED OR SEMI-ENCLOSED SEAS

Article 123

Co-operation of States bordering enclosed or semi-
enclosed seas

States bordering an enclosed or semi-enclosed sea should 
co-operate with each other in the exercise of their 
rights and in the performance of their duties under this 
Convention. To this end they shall endeavour, directly 
or through an appropriate regional organization:

(...)

(b) to co-ordinate the implementation of their rights 
and duties with respect to the protection and 
preservation of the marine environment;

(...)


PART XI

THE AREA

SECTION 2. PRINCIPLES GOVERNING THE AREA

Article 142

Rights and legitimate interests of coastal States

(...)

3. Neither this Part nor any rights granted or exercised 
pursuant thereto shall affect the rights of coastal 
States to take such measures consistent with the 
relevant provisions of Part XII as may be necessary to 
prevent, mitigate or eliminate grave and imminent danger 
to their coastline, or related interests from pollution 
or threat thereof or from other hazardous occurrences 
resulting from or caused by any activities in the Area.


Article 145

Protection of the marine environment

Necessary measures shall be taken in accordance with 
this Convention with respect to activities in the Area 
to ensure effective protection for the marine 
environment from harmful effects which may arise from 
such activities. To this end the Authority shall adopt 
appropriate rules, regulations and procedures for inter 
alia:

(a) the prevention, reduction and control of pollution 
and other hazards to the marine environment, including 
the coastline, and of interference with the ecological 
balance of the marine environment, particular attention 
being paid to the need for protection from harmful 
effects of such activities as drilling, dredging, 
excavation, disposal of waste, construction and 
operation or maintenance of installations, pipelines and 
other devices related to such activities;

(b) the protection and conservation of the natural 
resources of the Area and the prevention of damage to 
the flora and fauna of the marine environment.

SECTION 4. THE AUTHORITY

SUBSECTION C. THE COUNCIL

Article 162

Powers and functions

(...)

2. In addition, the Council shall:

(...)

(w) issue emergency orders, which may include orders for 
the suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area;

(x) disapprove areas for exploitation by contractors or 
the Enterprise in cases where substantial evidence 
indicates the risk of serious harm to the marine 
environment;

(...)

Article 165

The Legal and Technical Commission

1. Members of the Legal and Technical Commission shall 
have appropriate qualifications such as those relevant 
to exploration for and exploitation and processing of 
mineral resources, oceanology, protection of the marine 
environment, or economic or legal matters relating to 
ocean mining and related fields of expertise. The 
Council shall endeavour to ensure that the membership of 
the Commission reflects all appropriate qualifications.

2. The Commission shall:

(...)

(e) make recommendations to the Council on the 
protection of the marine environment, taking into 
account the views of recognized experts in that field;

(f) formulate and submit to the Council the rules, 
regulations and procedures referred to in article 162, 
paragraph 2(o), taking into account all relevant factors 
including assessments of the environmental implications 
of activities in the Area;

(...)

(h) make recommendations to the Council regarding the 
establishment of a monitoring programme to observe, 
measure, evaluate and analyse, by recognized scientific 
methods, on a regular basis, the risks or effects of 
pollution of the marine environment resulting from 
activities in the Area, ensure that existing regulations 
are adequate and are complied with and co-ordinate the 
implementation of the monitoring programme approved by 
the Council;

(...)

(k) make recommendations to the Council to issue 
emergency orders, which may include orders for the 
suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area. Such recommendations shall be 
taken up by the Council on a priority basis;

(l) make recommendations to the Council to disapprove 
areas for exploitation by contractors or the Enterprise 
in cases where substantial evidence indicates the risk 
of serious harm to the marine environment;

(...)

PART XII

PROTECTION AND PRESERVATION OF THE MARINE ENVIRONMENT
SECTION 1. GENERAL PROVISIONS

Article 192

General obligation

States have the obligation to protect and preserve the 
marine environment.

Article 193

Sovereign right of States to exploit their natural 
resources

States have the sovereign right to exploit their natural 
resources pursuant to their environmental policies and 
in accordance with their duty to protect and preserve 
the marine environment.

Article 194

Measures to prevent, reduce and control pollution of the 
marine environment

1. States shall take, individually or jointly as 
appropriate, all measures consistent with this 
Convention that are necessary to prevent, reduce and 
control pollution of the marine environment from any 
source, using for this purpose the best practicable 
means at their disposal and in accordance with their 
capabilities, and they shall endeavour to harmonize 
their policies in this connection.

2. States shall take all measures necessary to ensure 
that activities under their jurisdiction or control are 
so conducted as not to cause damage by pollution to 
other States and their environment, and that pollution 
arising from incidents or activities under their 
jurisdiction or control does not spread beyond the areas 
where they exercise sovereign rights in accordance with 
this Convention. 3. The measures taken pursuant to this 
Part shall deal with all sources of pollution of the 
marine environment. These measures shall include, inter 
alia, those designed to minimize to the fullest possible 
extent:

(a) the release of toxic, harmful or noxious substances, 
especially those which are persistent, from land-based 
sources, from or through the atmosphere or by dumping;

(b) pollution from vessels, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, preventing 
intentional and unintentional discharges, and regulating 
the design, construction, equipment, operation and 
manning of vessels;

(c) pollution from installations and devices used in 
exploration or exploitation of the natural resources of 
the sea-bed and subsoil, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, and regulating 
the design, construction, equipment, operation and 
manning of such installations or devices;

(d) pollution from other installations and devices 
operating in the marine environment, in particular 
measures for preventing accidents and dealing with 
emergencies, ensuring the safety of operations at sea, 
and regulating the design, construction, equipment, 
operation and manning of such installations or devices.

4. In taking measures to prevent, reduce or control 
pollution of the marine environment, States shall 
refrain from unjustifiable interference with activities 
carried out by other States in the exercise of their 
rights and in pursuance of their duties in conformity 
with this Convention.

5. The measures taken in accordance with this Part shall 
include those necessary to protect and preserve rare or 
fragile ecosystems as well as the habitat of depleted, 
threatened or endangered species and other forms of 
marine life.

Article 195

Duty not to transfer damage or hazards or transform one 
type of pollution into another In taking measures to 
prevent, reduce and control pollution of the marine 
environment, States shall act so as not to transfer, 
directly or indirectly, damage or hazards from one area 
to another or transform one type of pollution into 
another.

Article 196

Use of technologies or introduction of alien or new 
species

1. States shall take all measures necessary to prevent, 
reduce and control pollution of the marine environment 
resulting from the use of technologies under their 
jurisdiction or control, or the intentional or 
accidental introduction of species, alien or new, to a 
particular part of the marine environment, which may 
cause significant and harmful changes thereto.

2. This article does not affect the application of this 
Convention regarding the prevention, reduction and 
control of pollution of the marine environment.

SECTION 2. GLOBAL AND REGIONAL CO-OPERATION

Article 197

Co-operation on a global or regional basis

States shall co-operate on a global basis and, as 
appropriate, on a regional basis, directly or through 
competent international organizations, in formulating 
and elaborating international rules, standards and 
recommended practices and procedures consistent 
with this Convention, for the protection and 
preservation of the marine environment, taking into 
account characteristic regional features.

Article 198

Notification of imminent or actual damage

When a State becomes aware of cases in which the marine 
environment is in imminent danger of being damaged or 
has been damaged by pollution, it shall immediately 
notify other States it deems likely to be affected by 
such damage, as well as the competent international 
organizations.

Article 199

Contingency plans against pollution

In the cases referred to in article 198, States in the 
area affected, in accordance with their capabilities, 
and the competent international organizations shall co-
operate, to the extent possible, in eliminating the 
effects of pollution and preventing or minimizing the 
damage. To this end, States shall jointly develop and 
promote contingency plans for responding to pollution 
incidents in the marine environment.

Article 200

Studies, research programmes and exchange of information 
and data States shall co-operate, directly or through 
competent international organizations, for the purpose 
of promoting studies, undertaking programmes of 
scientific research and encouraging the exchange of 
information and data acquired about pollution of the 
marine environment. They shall endeavour to participate 
actively in regional and global programmes to acquire 
knowledge for the assessment of the nature and extent of 
pollution, exposure to it, and its pathways, risks and 
remedies.

Article 201

Scientific criteria for regulations

In the light of the information and data acquired 
pursuant to article 200, States shall co-operate, 
directly or through competent international 
organizations, in establishing appropriate scientific 
criteria for the formulation and elaboration of rules, 
standards and recommended practices and procedures for 
the prevention, reduction and control of pollution of 
the marine environment.

SECTION 3. TECHNICAL ASSISTANCE

Article 202

Scientific and technical assistance to developing States

States shall, directly or through competent 
international organizations:

(a) promote programmes of scientific, educational, 
technical and other assistance to developing States for 
the protection and preservation of the marine 
environment and the prevention, reduction and control of 
marine pollution. Such assistance shall include, inter 
alia:

(i) training of their scientific and technical 
personnel;

(ii) facilitating their participation in relevant 
international programmes;

(iii) supplying them with necessary equipment and 
facilities; 

(iv) enhancing their capacity to manufacture such 
equipment; 

(v) advice on and developing facilities for research, 
monitoring, educational and other programmes;

(b) provide appropriate assistance, especially to 
developing States, for the minimization of the effects 
of major incidents which may cause serious pollution of 
the marine environment;

(c) provide appropriate assistance, especially to 
developing States, concerning the preparation of 
environmental assessments.

Article 203

Preferential treatment for developing States

Developing States shall, for the purposes of prevention, 
reduction and control of pollution of the marine 
environment or minimization of its effects, be granted 
preference by international organizations in:

(a) the allocation of appropriate funds and technical 
assistances; and

(b) the utilization of their specialized services.

SECTION 4. MONITORING AND ENVIRONMENTAL ASSESSMENT


Article 204

Monitoring of the risks or effects of pollution

1. States shall, consistent with the rights of other 
States, endeavour, as far as practicable, directly or 
through the competent international organizations, to 
observe, measure, evaluate and analyse, by recognized 
scientific methods, the risks or effects of pollution of 
the marine environment.

2. In particular, States shall keep under surveillance 
the effects of any activities which they permit or in 
which they engage in order to determine whether these 
activities are likely to pollute the marine environment.

Article 205

Publication of reports

States shall publish reports of the results obtained 
pursuant to article 204 or provide such reports at 
appropriate intervals to the competent international 
organizations, which should make them available to all 
States.

Article 206

Assessment of potential effects of activities

When States have reasonable grounds for believing that 
planned activities under their jurisdiction or control 
may cause substantial pollution of or significant and 
harmful changes to the marine environment, they shall, 
as far as practicable, assess the potential effects of 
such activities on the marine environment and shall 
communicate reports of the results of such assessments 
in the manner provided in article 205.

SECTION 5. INTERNATIONAL RULES AND NATIONAL LEGISLATION 
TO PREVENT, REDUCE AND CONTROL POLLUTION OF THE MARINE 
ENVIRONMENT

Article 207

Pollution from land-based sources

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from land-based sources, including rivers, estuaries, 
pipelines and outfall structures, taking into account 
internationally agreed rules, standards and recommended 
practices and procedures.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control pollution of the marine 
environment from land-based sources, taking into account 
characteristic regional features, the economic capacity 
of developing States and their need for economic 
development. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

5. Laws, regulations, measures, rules, standards and 
recommended practices and procedures referred to in 
paragraphs 1, 2 and 4 shall include those designed to 
minimize, to the fullest extent possible, the release of 
toxic, harmful or noxious substances, especially those 
which are persistent, into the marine environment.

Article 208

Pollution from sea-bed activities subject to national 
jurisdiction


1. Coastal States shall adopt laws and regulations to 
prevent, reduce and control pollution of the marine 
environment arising from or in connection with sea-bed 
activities subject to their jurisdiction and from 
artificial islands, installations and structures under 
their jurisdiction, pursuant to articles 60 and 80.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall be no less 
effective than international rules, standards and 
recommended practices and procedures.

4. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

5. States, acting especially through competent 
international organizations or diplomatic conference, 
shall establish global and regional rules, standards and 
recommended practices and procedures to prevent, reduce 
and control pollution of the marine environment referred 
to in paragraph 1. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

Article 209

Pollution from activities in the Area

1. International rules, regulations and procedures shall 
be established in accordance with Part XI to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area. Such rules, regulations and 
procedures shall be re-examined from time to time as 
necessary.

2. Subject to the relevant provisions of this section, 
States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area undertaken by vessels, 
installations, structures and other devices flying their 
flag or of their registry or operating under their 
authority, as the case may be. The requirements of such 
laws and regulations shall be no less effective than the 
international rules, regulations and procedures referred 
to in paragraph 1.

Article 210

Pollution by dumping

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
by dumping.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall ensure that 
dumping is not carried out without the permission of the 
competent authorities of States.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control such pollution. Such rules, 
standards and recommended practices and procedures shall 
be re-examined from time to time as necessary.

5. Dumping within the territorial sea and the exclusive 
economic zone or onto the continental shelf shall not be 
carried out without the express prior approval of the 
coastal State, which has the right to permit, regulate 
and control such dumping after due consideration of the 
matter with other States which by reason of their 
geographical situation may be adversely affected 
thereby.

6. National laws, regulations and measures shall be no 
less effective in preventing, reducing and controlling 
such pollution than the global rules and standards.

Article 211

Pollution from vessels

1. States, acting through the competent international 
organization or general diplomatic conference, shall 
establish international rules and standards to prevent, 
reduce and control pollution of the marine environment 
from vessels and promote the adoption, in the same 
manner, wherever appropriate, of routeing systems 
designed to minimize the threat of accidents which might 
cause pollution of the marine environment, including the 
coastline, and pollution damage to the related interests 
of coastal States. Such rules and standards shall, in 
the same manner, be re-examined from time to time as 
necessary.

2. States shall adopt laws and regulations for the 
prevention, reduction and control of pollution of the 
marine environment from vessels flying their flag or of 
their registry. Such laws and regulations shall at least 
have the same effect as that of generally accepted 
international rules and standards established through 
the competent international organization or general 
diplomatic conference.

3. States which establish particular requirements for 
the prevention, reduction and control of pollution of 
the marine environment as a condition for the entry of 
foreign vessels into their ports or internal waters or 
for a call at their off-shore terminals shall give due 
publicity to such requirements and shall communicate 
them to the competent international organization. 
Whenever such requirements are established in identical 
form by two or more coastal States in an endeavour to 
harmonize policy, the communication shall indicate which 
States are participating in such co-operative 
arrangements. Every State shall require the master of a 
vessel flying its flag or of its registry, when 
navigating within the territorial sea of a State 
participating in such co-operative arrangements, to 
furnish, upon the request of that State, information as 
to whether it is proceeding to a State of the same 
region participating in such co-operative arrangements 
and, if so, to indicate whether it complies with the 
port entry requirements of that State. This article is 
without prejudice to the continued exercise by a vessel 
of its right of innocent passage or to the application 
of article 25, paragraph 2.

4. Coastal States may, in the exercise of their 
sovereignty within their territorial sea, adopt laws and 
regulations for the prevention, reduction and control of 
marine pollution from foreign vessels, including vessels 
exercising the right of innocent passage. Such laws and 
regulations shall, in accordance with Part II, section 
3, not hamper innocent passage of foreign vessels.

5. Coastal States, for the purpose of enforcement as 
provided for in section 6, may in respect of their 
exclusive economic zones adopt laws and regulations for 
the prevention, reduction and control of pollution from 
vessels conforming to and giving effect to generally 
accepted international rules and standards established 
through the competent international organization or 
general diplomatic conference.

6. (a) Where the international rules and standards 
referred to in paragraph 1 are inadequate to meet 
special circumstances and coastal States have reasonable 
grounds for believing that a particular, clearly defined 
area of their respective exclusive economic zones is an 
area where the adoption of special mandatory measures 
for the prevention of pollution from vessels is required 
for recognized technical reasons in relation to its 
oceanographical and ecological conditions, as well as 
its utilization or the protection of its resources and 
the particular character of its traffic, the coastal 
States, after appropriate consultations through the 
competent international organization with any other 
States concerned, may, for that area, direct a 
communication to that organization, submitting 
scientific and technical evidence in support and 
information on necessary reception facilities. Within 12 
months after receiving such a communication, the 
organization shall determine whether the conditions in 
that area correspond to the requirements set out above. 
If the organization so determines, the coastal States 
may, for that area, adopt laws and regulations 
for the prevention, reduction and control of pollution 
from vessels implementing such international rules and 
standards or navigational practices as are made 
applicable, through the organization, for special areas. 
These laws and regulations shall not become applicable 
to foreign vessels until 15 months after the submission 
to the communication to the organization.

(b) The coastal States shall publish the limits of any 
such particular, clearly defined area.

(c) If the coastal States intend to adopt additional 
laws and regulations for the same area for the 
prevention, reduction and control of pollution from 
vessels, they shall, when submitting the aforesaid 
communication, at the same time notify the organization 
thereof. Such additional laws and regulations may relate 
to discharges or navigational practices but shall not 
require foreign vessels to observe design, construction, 
manning or equipment standards other than generally 
accepted international rules and standards; they shall 
become applicable to foreign vessels 15 months after the 
submission of the communication to the organization, 
provided that the organization agrees within 12 months 
after the submission of the communication.

7. The international rules and standards referred to in 
this article should include inter alia those relating to 
prompt notification to coastal States, whose coastline 
or related interests may be affected by incidents, 
including maritime casualties, which involve discharges 
or probability of discharges.

Article 212

Pollution from or through the atmosphere

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from or through the atmosphere, applicable to the air 
space under their sovereignty and to vessels flying 
their flag or vessels or aircraft of their registry, 
taking into account internationally agreed rules, 
standards and recommended practices and procedures and 
the safety of air navigation.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control such pollution.

SECTION 6. ENFORCEMENT

Article 213

Enforcement with respect to pollution from land-based 
sources

States shall enforce their laws and regulations adopted 
in accordance with article 207 and shall adopt laws and 
regulations and take other measures necessary to 
implement applicable international rules and standards 
established through competent international organiza-
tions or diplomatic conference to prevent, reduce and 
control pollution of the marine environment from land-
based sources.

Article 214

Enforcement with respect to pollution from sea-bed 
activities


States shall enforce their laws and regulations adopted 
in accordance with article 208 and shall adopt laws and 
regulations and take other measures necessary to 
implement applicable international rules and standards 
established through competent international 
organizations or diplomatic conference to prevent, 
reduce and control pollution of the marine environment 
arising from or in connection with sea-bed activities 
subject to their jurisdiction and from artificial 
islands, installations and structures under their 
jurisdiction, pursuant to articles 60 and 80.

Article 215

Enforcement with respect to pollution from activities in 
the Area

Enforcement of international rules, regulations and 
procedures established in accordance with Part XI to 
prevent, reduce and control pollution of the marine 
environment from activities in the Area shall be 
governed by that Part.

Article 216

Enforcement with respect to pollution by dumping

1. Laws and regulations adopted in accordance with this 
Convention and applicable international rules and 
standards established through competent international 
organizations or diplomatic conference for the 
prevention, reduction and control of pollution of the 
marine environment by dumping shall be enforced:

(a) by the coastal State with regard to dumping within 
its territorial sea or its exclusive economic zone or 
onto its continental shelf;

(b) by the flag State with regard to vessels flying its 
flag or vessels or aircraft of its registry;

(c) by any State with regard to acts of loading of 
wastes or other matter occurring within its territory or 
at its off-shore terminals. 2. No State shall be obliged 
by virtue of this article to institute proceedings when 
another State has already instituted proceedings 
in accordance with this article.

Article 217

Enforcement by flag States

1. States shall ensure compliance by vessels flying 
their flag or of their registry with applicable 
international rules and standards, established through 
the competent international organization or general 
diplomatic conference, and with their laws and 
regulations adopted in accordance with this Convention 
for the prevention, reduction and control of pollution 
of the marine environment from vessels and shall 
accordingly adopt laws and regulations and take other 
measures necessary for their implementation. Flag States 
shall provide for the effective enforcement of such 
rules, standards, laws and regulations, irrespective of 
where a violation occurs.

2. States shall, in particular, take appropriate 
measures in order to ensure that vessels flying their 
flag or of their registry are prohibited from sailing, 
until they can proceed to sea in compliance with the 
requirements of the international rules and standards 
referred to in paragraph 1, including requirements in 
respect of design, construction, equipment and manning 
of vessels.

3. States shall ensure that vessels flying their flag or 
of their registry carry on board certificates required 
by and issued pursuant to international rules and 
standards referred to in paragraph 1. States shall 
ensure that vessels flying their flag are periodically 
inspected in order to verify that such certificates are 
in conformity with the actual condition of the vessels. 
These certificates shall be accepted by other States as 
evidence of the condition of the vessels and shall be 
regarded as having the same force as certificates issued 
by them, unless there are clear grounds for believing 
that the condition of the vessel does not correspond 
substantially with the particulars of the certificates.

4. If a vessel commits a violation of rules and 
standards established through the competent inter-
national organization or general diplomatic conference, 
the flag State, without prejudice to articles 218, 220 
and 228, shall provide for immediate investigation and 
where appropriate institute proceedings in respect of 
the alleged violation irrespective of where the 
violation occurred or where the pollution caused by such 
violation has occurred or has been spotted. 

5. Flag States conducting an investigation of the 
violation may request the assistance of any other State 
whose co-operation could be useful in clarifying the 
circumstances of the case. States shall endeavour to 
meet appropriate requests of flag States.

6. States shall, at the written request of any State, 
investigate any violation alleged to have been committed 
by vessels flying their flag. If satisfied that 
sufficient evidence is available to enable proceedings 
to be brought in respect of the alleged violation, flag 
States shall without delay institute such proceedings in 
accordance with their laws.

7. Flag States shall promptly inform the requesting 
State and the competent international organization of 
the action taken and its outcome. Such information shall 
be available to all States.

8. Penalties provided for by the laws and regulations of 
States for vessels flying their flag shall be adequate 
in severity to discourage violations wherever they 
occur.

Article 218

Enforcement by port States

1. When a vessel is voluntarily within a port or at an 
off-shore terminal of a State, that State may undertake 
investigations and, where the evidence so warrants, 
institute proceedings in respect of any discharge from 
that vessel outside the internal waters, territorial sea 
or exclusive economic zone of that State in violation of 
applicable international rules and standards established 
through the competent international organization or 
general diplomatic conference.

2. No proceedings pursuant to paragraph 1 shall be 
instituted in respect of a discharge violation in the 
internal waters, territorial sea or exclusive economic 
zone of another State unless requested by that State, 
the flag State, or a State damaged or threatened by the 
discharge violation, or unless the violation has caused 
or is likely to cause pollution in the internal waters, 
territorial sea or exclusive economic zone of the State 
instituting the proceedings. 

3. When a vessel is voluntarily within a port or at an 
off-shore terminal of a State, that State shall, as far 
as practicable, comply with requests from any State for 
investigation of a discharge violation referred to in 
paragraph 1, believed to have occurred in, caused, or 
threatened damage to the internal waters, territorial 
sea or exclusive economic zone of the requesting State. 
It shall likewise, as far as practicable, comply with 
requests from the flag State for investigation of such a 
violation, irrespective of where the violation occurred.

4. The records of the investigation carried out by a 
port State pursuant to this article shall be transmitted 
upon request to the flag State or to the coastal State. 
Any proceedings instituted by the port State on the 
basis of such an investigation may, subject to section 
7, be suspended at the request of the coastal State when 
the violation has occurred within its internal waters, 
territorial sea or exclusive economic zone. The evidence 
and records of the case, together with any bond or other 
financial security posted with the authorities of the 
port State, shall in that event be transmitted to the 
coastal State. Such transmittal shall preclude the 
continuation of proceedings in the port State.

Article 219

Measures relating to seaworthiness of vessels to avoid 
pollution

Subject to section 7, States which, upon request or on 
their own initiative, have ascertained that a vessel 
within one of their ports or at one of their off-shore 
terminals is in violation of applicable international 
rules and standards relating to seaworthiness of vessels 
and thereby threatens damage to the marine environment 
shall, as far as practicable, take administrative 
measures to prevent the vessel from sailing. Such States 
may permit the vessel to proceed only to the nearest 
appropriate repair yard and, upon removal of the causes 
of the violation, shall permit the vessel to continue 
immediately.

Article 220

Enforcement by coastal States

1. When a vessel is voluntarily within a port or at an 
off-shore terminal of a State, that State may, subject 
to section 7, institute proceedings in respect of any 
violation of its laws and regulations adopted in 
accordance with this Convention or applicable 
international rules and standards for the prevention, 
reduction and control of pollution from vessels when the 
violation has occurred within the territorial sea or the 
exclusive economic zone of that State.

2. Where there are clear grounds for believing that a 
vessel navigating in the territorial sea of a State has, 
during its passage therein, violated laws and 
regulations of that State adopted in accordance with 
this Convention or applicable international rules and 
standards for the prevention, reduction and control of 
pollution from vessels, that State, without prejudice to 
the application of the relevant provisions of Part II, 
section 3, may undertake physical inspection of the 
vessel relating to the violation and may, where the 
evidence so warrants, institute proceedings, including 
detention of the vessel, in accordance with its laws, 
subject to the provisions of section 7.

3. Where there are clear grounds for believing that a 
vessel navigating in the exclusive economic zone or the 
territorial sea of a State has, in the exclusive 
economic zone, committed a violation of applicable 
international rules and standards for the prevention, 
reduction and control of pollution from vessels or laws 
and regulations of that State conforming and giving 
effect to such rules and standards, that State may 
require the vessel to give information regarding its 
identity and port of registry, its last and its next 
port of call and other relevant information required to 
establish whether a violation has occurred.

4. States shall adopt laws and regulations and take 
other measures so that vessels flying their flag comply 
with requests for information pursuant to paragraph 3.

5. Where there are clear grounds for believing that a 
vessel navigating in the exclusive economic zone or the 
territorial sea of a State has, in the exclusive 
economic zone, committed a violation referred to in 
paragraph 3 resulting in a substantial discharge causing 
or threatening significant pollution of the marine 
environment, that State may undertake physical 
inspection of the vessel for matters relating to the 
violation if the vessel has refused to give information 
or if the information supplied by the vessel is 
manifestly at variance with the evident factual 
situation and if the circumstances of the case justify 
such inspection.

6. Where there is clear objective evidence that a vessel 
navigating in the exclusive economic zone or the 
territorial sea of a State has, in the exclusive 
economic zone, committed a violation referred to in 
paragraph 3 resulting in a discharge causing major 
damage or threat of major damage to the coastline or 
related interests of the coastal State, or to any 
resources of its territorial sea or exclusive economic 
zone, that State may, subject to section 7, provided 
that the evidence so warrants, institute proceedings, 
including detention of the vessel, in accordance with 
its laws.

7. Notwithstanding the provisions of paragraph 6, 
whenever appropriate procedures have been established, 
either through the competent international organization 
or as otherwise agreed, whereby compliance with 
requirements for bonding or other appropriate financial 
security has been assured, the coastal State if bound by 
such procedures shall allow the vessel to proceed.

8. The provisions of paragraphs 3, 4, 5, 6 and 7 also 
apply in respect of national laws and regulations 
adopted pursuant to article 211, paragraph 6.

Article 221

Measures to avoid pollution arising from maritime 
casualties

1. Nothing in this Part shall prejudice the right of 
States, pursuant to international law, both customary 
and conventional, to take and enforce measures beyond 
the territorial sea proportionate to the actual or 
threatened damage to protect their coastline or related 
interests, including fishing, from pollution or threat 
of pollution following upon a maritime casualty or acts 
relating to such a casualty, which may reasonably be 
expected to result in major harmful consequences.

2. For the purposes of this article, "maritime casualty" 
means a collision of vessels, stranding or other 
incident of navigation, or other occurrence on board a 
vessel or external to it resulting in material damage or 
imminent threat of material damage to a vessel or cargo.
Article 222

Enforcement with respect to pollution from or through 
the atmosphere

States shall enforce, within the air space under their 
sovereignty or with regard to vessels flying their flag 
or vessels or aircraft of their registry, their laws and 
regulations adopted in accordance with article 212, 
paragraph 1, and with other provisions of this 
Convention and shall adopt laws and regulations and take 
other measures necessary to implement applicable 
international rules and standards established through 
competent international organizations or diplomatic 
conference to prevent, reduce and control pollution of 
the marine environment from or through the atmosphere, 
in conformity with all relevant international rules and 
standards concerning the safety of air navigation.

SECTION 7. SAFEGUARDS

Article 223

Measures to facilitate proceedings

In proceedings instituted pursuant to this Part, States 
shall take measures to facilitate the hearing of 
witnesses and the admission of evidence submitted by 
authorities of another State, or by the competent 
international organization, and shall facilitate the 
attendance at such proceedings of official 
representatives of the competent international 
organization, the flag State and any State affected by 
pollution arising out of any violation. The official 
representatives attending such proceedings shall have 
such rights and duties as may be provided under national 
laws and regulations or international law.

Article 224

Exercise of powers of enforcement

The powers of enforcement against foreign vessels under 
this Part may only be exercised by officials or by 
warships, military aircraft, or other ships or aircraft 
clearly marked and identifiable as being on government 
service and authorized to that effect.

Article 225

Duty to avoid adverse consequences in the exercise of 
the powers of enforcement

In the exercise under this Convention of their powers of 
enforcement against foreign vessels, States shall not 
endanger the safety of navigation or otherwise create 
any hazard to a vessel, or bring it to an unsafe port or 
anchorage, or expose the marine environment to an 
unreasonable risk.

Article 226

Investigation of foreign vessels

1.(a) States shall not delay a foreign vessel longer 
than is essential for purposes of the investigations 
provided for in articles 216, 218 and 220. Any physical 
inspection of a foreign vessel shall be limited to an 
examination of such certificates, records or other 
documents as the vessel is required to carry by 
generally accepted international rules and standards or 
of any similar documents which it is carrying; further 
physical inspection of the vessel may be undertaken only 
after such an examination and only when:

(i) there are clear grounds for believing that the 
condition of the vessel or its equipment does not 
correspond substantially with the particulars of those 
documents;

(ii) the contents of such documents are not sufficient 
to confirm or verify a suspected violation; or

(iii) the vessel is not carrying valid certificates and 
records.

(b) If the investigation indicates a violation of 
applicable laws and regulations or international rules 
and standards for the protection and preservation of the 
marine environment, release shall be made promptly 
subject to reasonable procedures such as bonding or 
other appropriate financial security.

(c) Without prejudice to applicable international rules 
and standards relating to the seaworthiness of vessels, 
the release of a vessel may, whenever it would present 
an unreasonable threat of damage to the marine 
environment, be refused or made conditional up

United Nations Convention on the Law of the Sea




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8. UNITED NATIONS CONVENTION ON THE LAW OF THE SEA

(Montego Bay, 10 December 1982)

The States Parties to this Convention, (...) Recognizing 
the desirability of establishing through this 
Convention, with due regard for the sovereignty of all 
States, a legal order for the seas and oceans which will 
facilitate international communication, and will promote 
the peaceful uses of the seas and oceans, the equitable 
and efficient utilization of their resources, the 
conservation of their living resources, and the study, 
protection and preservation of the marine environment, 
(...)

PART I

INTRODUCTION

Article 1

Use of terms and scope

1. For the purposes of this Convention:

(1) "Area" means the sea-bed and ocean floor and subsoil 
thereof, beyonds the limits of national jurisdiction;
(...)

(4) "pollution of the marine environment" means the 
introduction by man, directly or indirectly, of 
substances or energy into the marine environment, 
including estuaries, which results or is likely to 
result in such deleterious effects as harm to living 
resources and marine life, hazards to human health, 
hindrance to marine activities, including fishing and 
other legitimate uses of the sea, impairment of quality 
for use of sea water and reduction of amenities;

(5) (a) "dumping" means:

(i) any deliberate disposal of wastes or other matter 
from vessels, aircraft, platforms or other man-made 
structures at sea;

(ii) any deliberate disposal of vessels, aircraft, 
platforms or other man-made structures at sea;

(b) "dumping" does not include:

(i) the disposal of wastes or other matter incidental 
to, or derived from the normal operations of vessels, 
aircraft, platforms or other man-made structures at sea 
and their equipment, other than wastes or other matter 
transported by or to vessels, aircraft, platforms or 
other man-made structures at sea, operating for the 
purpose of disposal of such matter or derived from the 
treatment of such wastes or other matter on such 
vessels, aircraft, platforms or structures;

(ii) placement of matter for a purpose other than the 
mere disposal thereof, provided that such placement is 
not contrary to the aims of this Convention.
(...)

PART II

TERRITORIAL SEA AND CONTIGUOUS ZONE

SECTION 3. INNOCENT PASSAGE IN THE TERRITORIAL SEA

Article 19

Meaning of innocent passage

(...)

2. Passage of a foreign ship shall be considered to be 
prejudicial to the peace, good order or security of the 
coastal State if in the territorial seas it engages in 
any of the following activities: (...)

(h)any act of wilful and serious pollution contrary to 
this Convention; (...)

Article 21

Laws and regulations of the coastal State relating to 
innocent passage

1. The coastal State may adopt laws and regulations, in 
conformity with the provisions of this Convention and 
other rules of international law, relating to innocent 
passage through the territorial sea, in respect of all 
or any of the following:

(...)

(f) the preservation of the environment of the coastal 
State and the prevention, reduction and control of 
pollution thereof; (...)

Article 22

Sea lanes and traffic separation schemes in the 
territorial sea

1. The coastal State may, where necessary having regard 
to the safety of navigation, require foreign ships 
exercising the right of innocent passage through its 
territorial sea to use such sea lanes and traffic 
separation schemes as it may designate or prescribe for 
the regulation of the passage of ships.

2. In particular, tankers, nuclear-powered ships and 
ships carrying nuclear or other inherently dangerous or 
noxious substances or materials may be required to 
confine their passage to such sea lanes.

(...)

Article 23

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances 
shall, when exercising the right of innocent passage 
through the territorial sea, carry documents and observe 
special precautionary measures established for such 
ships by international agreements.

(...)

PART III

STRAITS USED FOR INTERNATIONAL NAVIGATION

SECTION 2. TRANSIT PASSAGE

Article 39

Duties of ships and aircraft during transit passage

(...)

2. Ships in transit passage shall:

(...)

(b) comply with generally accepted international 
regulations, procedures and practices for the 
prevention, reduction and control of pollution from 
ships. (...)

Article 42

Laws and regulations of States bordering straits 
relating to transit passage

1. Subject to the provisions of this section, States 
bordering straits may adopt laws and regulations 
relating to transit passage through straits, in respect 
of all or any of the following:

(...)

(b) the prevention, reduction and control of pollution, 
by giving effect to applicable international regulations 
regarding the discharge of oil, oily wastes and other 
noxious substances in the straits;

(...)

Article 43

Navigational and safety aids and other improvements and 
the prevention, reduction and control of pollution

User States and States bordering a strait should by 
agreement co-operate:

(...)

(b) for the prevention, reduction and control of 
pollution from ships.

PART IV

ARCHIPELAGIC STATES

Article 54

Duties of ships and aircraft during their passage, 
research and survey activities, duties of the 
archipelagic State and laws and regulations of the 
archipelagic State relating to archipelagic sea lanes 
passage Articles 39, 40, 42 and 44 apply mutatis 
mutandis to archipelagic sea lanes passage.

PART V

EXCLUSIVE ECONOMIC ZONE

Article 56

Rights, jurisdiction and duties of the coastal State in 
the exclusive economic zone 

1. In the exclusive economic zone, the coastal State 
has:

(...)

(b) jurisdiction as provided for in the relevant 
provisions of this Convention with regard to:

(...)

(iii) the protection and preservation of the marine 
environment; (...)

Article 60

Artificial islands, installations and structures in the 
exclusive economic zone

(...)

3. Due notice must be given of the construction of such 
artificial islands, installations or structures, and 
permanent means for giving warning of their presence 
must be maintained. Any installations or structures 
which are abandoned or disused shall be removed to 
ensure safety of navigation, taking into account any 
generally accepted international standards established 
in this regard by the competent international 
organization. Such removal shall also have due regard to 
fishing, the protection of the marine environment and 
the rights and duties of other States. Appropriate 
publicity shall be given to the depth, position and 
dimensions of any installations or structures not 
entirely removed.

(...)

Article 65

Marine mammals

Nothing in this Part restricts the right of a coastal 
State or the competence of an international 
organization, as appropriate, to prohibit, limit or 
regulate the exploitation of marine mammals more 
strictly than provided for in this Part. States shall 
co-operate with a view to the conservation of marine 
mammals and in the case of cetaceans shall in particular 
work through the appropriate international organizations 
for their conservation, management and study.

PART VI

CONTINENTAL SHELF

Article 79

Submarine cables and pipelines on the continental shelf

(...)

2. Subject to its right to take reasonable measures for 
the exploration of the continental shelf, the 
exploitation of its natural resources and the 
prevention, reduction and control of pollution from 
pipelines, the coastal State may not impede the laying 
or maintenance of such cables or pipelines.

(...)

Article 80

Artificial islands, installations and structures on the 
continental shelf

Article 60 applies mutatis mutandis to artificial 
islands, installations and structures on the continental 
shelf.

PART VII

HIGH SEAS

SECTION 1. GENERAL PROVISIONS

Article 94

Duties of the flag State

(...)

7. Each State shall cause an inquiry to be held by or 
before a suitably qualified person or persons into every 
marine casualty or incident of navigation on the high 
seas involving a ship flying its flag and causing loss 
of life or serious injury to nationals of another state 
or serious damage to ships or installations of another 
State or to the marine environment. The flag State and 
the other State shall co-operate in the conduct of any 
inquiry held by that other State into any such marine 
casualty or incident of navigation.

SECTION 2. CONSERVATION AND MANAGEMENT OF THE LIVING 
RESOURCES OF THE HIGH SEAS

Article 120

Marine mammals

Article 65 also applies to the conservation and 
management of marine mammals in the high seas.


PART IX ENCLOSED OR SEMI-ENCLOSED SEAS

Article 123

Co-operation of States bordering enclosed or semi-
enclosed seas

States bordering an enclosed or semi-enclosed sea should 
co-operate with each other in the exercise of their 
rights and in the performance of their duties under this 
Convention. To this end they shall endeavour, directly 
or through an appropriate regional organization:

(...)

(b) to co-ordinate the implementation of their rights 
and duties with respect to the protection and 
preservation of the marine environment;

(...)


PART XI

THE AREA

SECTION 2. PRINCIPLES GOVERNING THE AREA

Article 142

Rights and legitimate interests of coastal States

(...)

3. Neither this Part nor any rights granted or exercised 
pursuant thereto shall affect the rights of coastal 
States to take such measures consistent with the 
relevant provisions of Part XII as may be necessary to 
prevent, mitigate or eliminate grave and imminent danger 
to their coastline, or related interests from pollution 
or threat thereof or from other hazardous occurrences 
resulting from or caused by any activities in the Area.


Article 145

Protection of the marine environment

Necessary measures shall be taken in accordance with 
this Convention with respect to activities in the Area 
to ensure effective protection for the marine 
environment from harmful effects which may arise from 
such activities. To this end the Authority shall adopt 
appropriate rules, regulations and procedures for inter 
alia:

(a) the prevention, reduction and control of pollution 
and other hazards to the marine environment, including 
the coastline, and of interference with the ecological 
balance of the marine environment, particular attention 
being paid to the need for protection from harmful 
effects of such activities as drilling, dredging, 
excavation, disposal of waste, construction and 
operation or maintenance of installations, pipelines and 
other devices related to such activities;

(b) the protection and conservation of the natural 
resources of the Area and the prevention of damage to 
the flora and fauna of the marine environment.

SECTION 4. THE AUTHORITY

SUBSECTION C. THE COUNCIL

Article 162

Powers and functions

(...)

2. In addition, the Council shall:

(...)

(w) issue emergency orders, which may include orders for 
the suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area;

(x) disapprove areas for exploitation by contractors or 
the Enterprise in cases where substantial evidence 
indicates the risk of serious harm to the marine 
environment;

(...)

Article 165

The Legal and Technical Commission

1. Members of the Legal and Technical Commission shall 
have appropriate qualifications such as those relevant 
to exploration for and exploitation and processing of 
mineral resources, oceanology, protection of the marine 
environment, or economic or legal matters relating to 
ocean mining and related fields of expertise. The 
Council shall endeavour to ensure that the membership of 
the Commission reflects all appropriate qualifications.

2. The Commission shall:

(...)

(e) make recommendations to the Council on the 
protection of the marine environment, taking into 
account the views of recognized experts in that field;

(f) formulate and submit to the Council the rules, 
regulations and procedures referred to in article 162, 
paragraph 2(o), taking into account all relevant factors 
including assessments of the environmental implications 
of activities in the Area;

(...)

(h) make recommendations to the Council regarding the 
establishment of a monitoring programme to observe, 
measure, evaluate and analyse, by recognized scientific 
methods, on a regular basis, the risks or effects of 
pollution of the marine environment resulting from 
activities in the Area, ensure that existing regulations 
are adequate and are complied with and co-ordinate the 
implementation of the monitoring programme approved by 
the Council;

(...)

(k) make recommendations to the Council to issue 
emergency orders, which may include orders for the 
suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area. Such recommendations shall be 
taken up by the Council on a priority basis;

(l) make recommendations to the Council to disapprove 
areas for exploitation by contractors or the Enterprise 
in cases where substantial evidence indicates the risk 
of serious harm to the marine environment;

(...)

PART XII

PROTECTION AND PRESERVATION OF THE MARINE ENVIRONMENT
SECTION 1. GENERAL PROVISIONS

Article 192

General obligation

States have the obligation to protect and preserve the 
marine environment.

Article 193

Sovereign right of States to exploit their natural 
resources

States have the sovereign right to exploit their natural 
resources pursuant to their environmental policies and 
in accordance with their duty to protect and preserve 
the marine environment.

Article 194

Measures to prevent, reduce and control pollution of the 
marine environment

1. States shall take, individually or jointly as 
appropriate, all measures consistent with this 
Convention that are necessary to prevent, reduce and 
control pollution of the marine environment from any 
source, using for this purpose the best practicable 
means at their disposal and in accordance with their 
capabilities, and they shall endeavour to harmonize 
their policies in this connection.

2. States shall take all measures necessary to ensure 
that activities under their jurisdiction or control are 
so conducted as not to cause damage by pollution to 
other States and their environment, and that pollution 
arising from incidents or activities under their 
jurisdiction or control does not spread beyond the areas 
where they exercise sovereign rights in accordance with 
this Convention. 3. The measures taken pursuant to this 
Part shall deal with all sources of pollution of the 
marine environment. These measures shall include, inter 
alia, those designed to minimize to the fullest possible 
extent:

(a) the release of toxic, harmful or noxious substances, 
especially those which are persistent, from land-based 
sources, from or through the atmosphere or by dumping;

(b) pollution from vessels, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, preventing 
intentional and unintentional discharges, and regulating 
the design, construction, equipment, operation and 
manning of vessels;

(c) pollution from installations and devices used in 
exploration or exploitation of the natural resources of 
the sea-bed and subsoil, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, and regulating 
the design, construction, equipment, operation and 
manning of such installations or devices;

(d) pollution from other installations and devices 
operating in the marine environment, in particular 
measures for preventing accidents and dealing with 
emergencies, ensuring the safety of operations at sea, 
and regulating the design, construction, equipment, 
operation and manning of such installations or devices.

4. In taking measures to prevent, reduce or control 
pollution of the marine environment, States shall 
refrain from unjustifiable interference with activities 
carried out by other States in the exercise of their 
rights and in pursuance of their duties in conformity 
with this Convention.

5. The measures taken in accordance with this Part shall 
include those necessary to protect and preserve rare or 
fragile ecosystems as well as the habitat of depleted, 
threatened or endangered species and other forms of 
marine life.

Article 195

Duty not to transfer damage or hazards or transform one 
type of pollution into another In taking measures to 
prevent, reduce and control pollution of the marine 
environment, States shall act so as not to transfer, 
directly or indirectly, damage or hazards from one area 
to another or transform one type of pollution into 
another.

Article 196

Use of technologies or introduction of alien or new 
species

1. States shall take all measures necessary to prevent, 
reduce and control pollution of the marine environment 
resulting from the use of technologies under their 
jurisdiction or control, or the intentional or 
accidental introduction of species, alien or new, to a 
particular part of the marine environment, which may 
cause significant and harmful changes thereto.

2. This article does not affect the application of this 
Convention regarding the prevention, reduction and 
control of pollution of the marine environment.

SECTION 2. GLOBAL AND REGIONAL CO-OPERATION

Article 197

Co-operation on a global or regional basis

States shall co-operate on a global basis and, as 
appropriate, on a regional basis, directly or through 
competent international organizations, in formulating 
and elaborating international rules, standards and 
recommended practices and procedures consistent 
with this Convention, for the protection and 
preservation of the marine environment, taking into 
account characteristic regional features.

Article 198

Notification of imminent or actual damage

When a State becomes aware of cases in which the marine 
environment is in imminent danger of being damaged or 
has been damaged by pollution, it shall immediately 
notify other States it deems likely to be affected by 
such damage, as well as the competent international 
organizations.

Article 199

Contingency plans against pollution

In the cases referred to in article 198, States in the 
area affected, in accordance with their capabilities, 
and the competent international organizations shall co-
operate, to the extent possible, in eliminating the 
effects of pollution and preventing or minimizing the 
damage. To this end, States shall jointly develop and 
promote contingency plans for responding to pollution 
incidents in the marine environment.

Article 200

Studies, research programmes and exchange of information 
and data States shall co-operate, directly or through 
competent international organizations, for the purpose 
of promoting studies, undertaking programmes of 
scientific research and encouraging the exchange of 
information and data acquired about pollution of the 
marine environment. They shall endeavour to participate 
actively in regional and global programmes to acquire 
knowledge for the assessment of the nature and extent of 
pollution, exposure to it, and its pathways, risks and 
remedies.

Article 201

Scientific criteria for regulations

In the light of the information and data acquired 
pursuant to article 200, States shall co-operate, 
directly or through competent international 
organizations, in establishing appropriate scientific 
criteria for the formulation and elaboration of rules, 
standards and recommended practices and procedures for 
the prevention, reduction and control of pollution of 
the marine environment.

SECTION 3. TECHNICAL ASSISTANCE

Article 202

Scientific and technical assistance to developing States

States shall, directly or through competent 
international organizations:

(a) promote programmes of scientific, educational, 
technical and other assistance to developing States for 
the protection and preservation of the marine 
environment and the prevention, reduction and control of 
marine pollution. Such assistance shall include, inter 
alia:

(i) training of their scientific and technical 
personnel;

(ii) facilitating their participation in relevant 
international programmes;

(iii) supplying them with necessary equipment and 
facilities; 

(iv) enhancing their capacity to manufacture such 
equipment; 

(v) advice on and developing facilities for research, 
monitoring, educational and other programmes;

(b) provide appropriate assistance, especially to 
developing States, for the minimization of the effects 
of major incidents which may cause serious pollution of 
the marine environment;

(c) provide appropriate assistance, especially to 
developing States, concerning the preparation of 
environmental assessments.

Article 203

Preferential treatment for developing States

Developing States shall, for the purposes of prevention, 
reduction and control of pollution of the marine 
environment or minimization of its effects, be granted 
preference by international organizations in:

(a) the allocation of appropriate funds and technical 
assistances; and

(b) the utilization of their specialized services.

SECTION 4. MONITORING AND ENVIRONMENTAL ASSESSMENT


Article 204

Monitoring of the risks or effects of pollution

1. States shall, consistent with the rights of other 
States, endeavour, as far as practicable, directly or 
through the competent international organizations, to 
observe, measure, evaluate and analyse, by recognized 
scientific methods, the risks or effects of pollution of 
the marine environment.

2. In particular, States shall keep under surveillance 
the effects of any activities which they permit or in 
which they engage in order to determine whether these 
activities are likely to pollute the marine environment.

Article 205

Publication of reports

States shall publish reports of the results obtained 
pursuant to article 204 or provide such reports at 
appropriate intervals to the competent international 
organizations, which should make them available to all 
States.

Article 206

Assessment of potential effects of activities

When States have reasonable grounds for believing that 
planned activities under their jurisdiction or control 
may cause substantial pollution of or significant and 
harmful changes to the marine environment, they shall, 
as far as practicable, assess the potential effects of 
such activities on the marine environment and shall 
communicate reports of the results of such assessments 
in the manner provided in article 205.

SECTION 5. INTERNATIONAL RULES AND NATIONAL LEGISLATION 
TO PREVENT, REDUCE AND CONTROL POLLUTION OF THE MARINE 
ENVIRONMENT

Article 207

Pollution from land-based sources

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from land-based sources, including rivers, estuaries, 
pipelines and outfall structures, taking into account 
internationally agreed rules, standards and recommended 
practices and procedures.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control pollution of the marine 
environment from land-based sources, taking into account 
characteristic regional features, the economic capacity 
of developing States and their need for economic 
development. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

5. Laws, regulations, measures, rules, standards and 
recommended practices and procedures referred to in 
paragraphs 1, 2 and 4 shall include those designed to 
minimize, to the fullest extent possible, the release of 
toxic, harmful or noxious substances, especially those 
which are persistent, into the marine environment.

Article 208

Pollution from sea-bed activities subject to national 
jurisdiction


1. Coastal States shall adopt laws and regulations to 
prevent, reduce and control pollution of the marine 
environment arising from or in connection with sea-bed 
activities subject to their jurisdiction and from 
artificial islands, installations and structures under 
their jurisdiction, pursuant to articles 60 and 80.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall be no less 
effective than international rules, standards and 
recommended practices and procedures.

4. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

5. States, acting especially through competent 
international organizations or diplomatic conference, 
shall establish global and regional rules, standards and 
recommended practices and procedures to prevent, reduce 
and control pollution of the marine environment referred 
to in paragraph 1. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

Article 209

Pollution from activities in the Area

1. International rules, regulations and procedures shall 
be established in accordance with Part XI to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area. Such rules, regulations and 
procedures shall be re-examined from time to time as 
necessary.

2. Subject to the relevant provisions of this section, 
States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area undertaken by vessels, 
installations, structures and other devices flying their 
flag or of their registry or operating under their 
authority, as the case may be. The requirements of such 
laws and regulations shall be no less effective than the 
international rules, regulations and procedures referred 
to in paragraph 1.

Article 210

Pollution by dumping

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
by dumping.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall ensure that 
dumping is not carried out without the permission of the 
competent authorities of States.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control such pollution. Such rules, 
standards and recommended practices and procedures shall 
be re-examined from time to time as necessary.

5. Dumping within the territorial sea and the exclusive 
economic zone or onto the continental shelf shall not be 
carried out without the express prior approval of the 
coastal State, which has the right to permit, regulate 
and control such dumping after due consideration of the 
matter with other States which by reason of their 
geographical situation may be adversely affected 
thereby.

6. National laws, regulations and measures shall be no 
less effective in preventing, reducing and controlling 
such pollution than the global rules and standards.

Article 211

Pollution from vessels

1. States, acting through the competent international 
organization or general diplomatic conference, shall 
establish international rules and standards to prevent, 
reduce and control pollution of the marine environment 
from vessels and promote the adoption, in the same 
manner, wherever appropriate, of routeing systems 
designed to minimize the threat of accidents which might 
cause pollution of the marine environment, including the 
coastline, and pollution damage to the related interests 
of coastal States. Such rules and standards shall, in 
the same manner, be re-examined from time to time as 
necessary.

2. States shall adopt laws and regulations for the 
prevention, reduction and control of pollution of the 
marine environment from vessels flying their flag or of 
their registry. Such laws and regulations shall at least 
have the same effect as that of generally accepted 
international rules and standards established through 
the competent international organization or general 
diplomatic conference.

3. States which establish particular requirements for 
the prevention, reduction and control of pollution of 
the marine environment as a condition for the entry of 
foreign vessels into their ports or internal waters or 
for a call at their off-shore terminals shall give due 
publicity to such requirements and shall communicate 
them to the competent international organization. 
Whenever such requirements are established in identical 
form by two or more coastal States in an endeavour to 
harmonize policy, the communication shall indicate which 
States are participating in such co-operative 
arrangements. Every State shall require the master of a 
vessel flying its flag or of its registry, when 
navigating within the territorial sea of a State 
participating in such co-operative arrangements, to 
furnish, upon the request of that State, information as 
to whether it is proceeding to a State of the same 
region participating in such co-operative arrangements 
and, if so, to indicate whether it complies with the 
port entry requirements of that State. This article is 
without prejudice to the continued exercise by a vessel 
of its right of innocent passage or to the application 
of article 25, paragraph 2.

4. Coastal States may, in the exercise of their 
sovereignty within their territorial sea, adopt laws and 
regulations for the prevention, reduction and control of 
marine pollution from foreign vessels, including vessels 
exercising the right of innocent passage. Such laws and 
regulations shall, in accordance with Part II, section 
3, not hamper innocent passage of foreign vessels.

5. Coastal States, for the purpose of enforcement as 
provided for in section 6, may in respect of their 
exclusive economic zones adopt laws and regulations for 
the prevention, reduction and control of pollution from 
vessels conforming to and giving effect to generally 
accepted international rules and standards established 
through the competent international organization or 
general diplomatic conference.

6. (a) Where the international rules and standards 
referred to in paragraph 1 are inadequate to meet 
special circumstances and coastal States have reasonable 
grounds for believing that a particular, clearly defined 
area of their respective exclusive economic zones is an 
area where the adoption of special mandatory measures 
for the prevention of pollution from vessels is required 
for recognized technical reasons in relation to its 
oceanographical and ecological conditions, as well as 
its utilization or the protection of its resources and 
the particular character of its traffic, the coastal 
States, after appropriate consultations through the 
competent international organization with any other 
States concerned, may, for that area, direct a 
communication to that organization, submitting 
scientific and technical evidence in support and 
information on necessary reception facilities. Within 12 
months after receiving such a communication, the 
organization shall determine whether the conditions in 
that area correspond to the requirements set out above. 
If the organization so determines, the coastal States 
may, for that area, adopt laws and regulations 
for the prevention, reduction and control of pollution 
from vessels implementing such international rules and 
standards or navigational practices as are made 
applicable, through the organization, for special areas. 
These laws and regulations shall not become applicable 
to foreign vessels until 15 months after the submission 
to the communication to the organization.

(b) The coastal States shall publish the limits of any 
such particular, clearly defined area.

(c) If the coastal States intend to adopt additional 
laws and regulations for the same area for the 
prevention, reduction and control of pollution from 
vessels, they shall, when submitting the aforesaid 
communication, at the same time notify the organization 
thereof. Such additional laws and regulations may relate 
to discharges or navigational practices but shall not 
require foreign vessels to observe design, construction, 
manning or equipment standards other than generally 
accepted international rules and standards; they shall 
become applicable to foreign vessels 15 months after the 
submission of the communication to the organization, 
provided that the organization agrees within 12 months 
after the submission of the communication.

7. The international rules and standards referred to in 
this article should include inter alia those relating to 
prompt notification to coastal States, whose coastline 
or related interests may be affected by incidents, 
including maritime casualties, which involve discharges 
or probability of discharges.

Article 212

Pollution from or through the atmosphere

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from or through the atmosphere, applicable to the air 
space under their sovereignty and to vessels flying 
their flag or vessels or aircraft of their registry, 
taking into account internationally agreed rules, 
standards and recommended practices and procedures and 
the safety of air navigation.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control such pollution.

SECTION 6. ENFORCEMENT

Article 213

Enforcement with respect to pollution from land-based 
sources

States shall enforce their laws and regulations adopted 
in accordance with article 207 and shall adopt laws and 
regulations and take other measures necessary to 
implement applicable international rules and standards 
established through competent international organiza-
tions or diplomatic conference to prevent, reduce and 
control pollution of the marine environment from land-
based sources.

Article 214

Enforcement with respect to pollution from sea-bed 
activities


States shall enforce their laws and regulations adopted 
in accordance with article 208 and shall adopt laws and 
regulations and take other measures necessary to 
implement applicable international rules and standards 
established through competent international 
organizations or diplomatic conference to prevent, 
reduce and control pollution of the marine environment 
arising from or in connection with sea-bed activities 
subject to their jurisdiction and from artificial 
islands, installations and structures under their 
jurisdiction, pursuant to articles 60 and 80.

Article 215

Enforcement with respect to pollution from activities in 
the Area

Enforcement of international rules, regulations and 
procedures established in accordance with Part XI to 
prevent, reduce and control pollution of the marine 
environment from activities in the Area shall be 
governed by that Part.

Article 216

Enforcement with respect to pollution by dumping

1. Laws and regulations adopted in accordance with this 
Convention and applicable international rules and 
standards established through competent international 
organizations or diplomatic conference for the 
prevention, reduction and control of pollution of the 
marine environment by dumping shall be enforced:

(a) by the coastal State with regard to dumping within 
its territorial sea or its exclusive economic zone or 
onto its continental shelf;

(b) by the flag State with regard to vessels flying its 
flag or vessels or aircraft of its registry;

(c) by any State with regard to acts of loading of 
wastes or other matter occurring within its territory or 
at its off-shore terminals. 2. No State shall be obliged 
by virtue of this article to institute proceedings when 
another State has already instituted proceedings 
in accordance with this article.

Article 217

Enforcement by flag States

1. States shall ensure compliance by vessels flying 
their flag or of their registry with applicable 
international rules and standards, established through 
the competent international organization or general 
diplomatic conference, and with their laws and 
regulations adopted in accordance with this Convention 
for the prevention, reduction and control of pollution 
of the marine environment from vessels and shall 
accordingly adopt laws and regulations and take other 
measures necessary for their implementation. Flag States 
shall provide for the effective enforcement of such 
rules, standards, laws and regulations, irrespective of 
where a violation occurs.

2. States shall, in particular, take appropriate 
measures in order to ensure that vessels flying their 
flag or of their registry are prohibited from sailing, 
until they can proceed to sea in compliance with the 
requirements of the international rules and standards 
referred to in paragraph 1, including requirements in 
respect of design, construction, equipment and manning 
of vessels.

3. States shall ensure that vessels flying their flag or 
of their registry carry on board certificates required 
by and issued pursuant to international rules and 
standards referred to in paragraph 1. States shall 
ensure that vessels flying their flag are periodically 
inspected in order to verify that such certificates are 
in conformity with the actual condition of the vessels. 
These certificates shall be accepted by other States as 
evidence of the condition of the vessels and shall be 
regarded as having the same force as certificates issued 
by them, unless there are clear grounds for believing 
that the condition of the vessel does not correspond 
substantially with the particulars of the certificates.

4. If a vessel commits a violation of rules and 
standards established through the competent inter-
national organization or general diplomatic conference, 
the flag State, without prejudice to articles 218, 220 
and 228, shall provide for immediate investigation and 
where appropriate institute proceedings in respect of 
the alleged violation irrespective of where the 
violation occurred or where the pollution caused by such 
violation has occurred or has been spotted. 

5. Flag States conducting an investigation of the 
violation may request the assistance of any other State 
whose co-operation could be useful in clarifying the 
circumstances of the case. States shall endeavour to 
meet appropriate requests of flag States.

6. States shall, at the written request of any State, 
investigate any violation alleged to have been committed 
by vessels flying their flag. If satisfied that 
sufficient evidence is available to enable proceedings 
to be brought in respect of the alleged violation, flag 
States shall without delay institute such proceedings in 
accordance with their laws.

7. Flag States shall promptly inform the requesting 
State and the competent international organization of 
the action taken and its outcome. Such information shall 
be available to all States.

8. Penalties provided for by the laws and regulations of 
States for vessels flying their flag shall be adequate 
in severity to discourage violations wherever they 
occur.

Article 218

Enforcement by port States

1. When a vessel is voluntarily within a port or at an 
off-shore terminal of a State, that State may undertake 
investigations and, where the evidence so warrants, 
institute proceedings in respect of any discharge from 
that vessel outside the internal waters, territorial sea 
or exclusive economic zone of that State in violation of 
applicable international rules and standards established 
through the competent international organization or 
general diplomatic conference.

2. No proceedings pursuant to paragraph 1 shall be 
instituted in respect of a discharge violation in the 
internal waters, territorial sea or exclusive economic 
zone of another State unless requested by that State, 
the flag State, or a State damaged or threatened by the 
discharge violation, or unless the violation has caused 
or is likely to cause pollution in the internal waters, 
territorial sea or exclusive economic zone of the State 
instituting the proceedings. 

3. When a vessel is voluntarily within a port or at an 
off-shore terminal of a State, that State shall, as far 
as practicable, comply with requests from any State for 
investigation of a discharge violation referred to in 
paragraph 1, believed to have occurred in, caused, or 
threatened damage to the internal waters, territorial 
sea or exclusive economic zone of the requesting State. 
It shall likewise, as far as practicable, comply with 
requests from the flag State for investigation of such a 
violation, irrespective of where the violation occurred.

4. The records of the investigation carried out by a 
port State pursuant to this article shall be transmitted 
upon request to the flag State or to the coastal State. 
Any proceedings instituted by the port State on the 
basis of such an investigation may, subject to section 
7, be suspended at the request of the coastal State when 
the violation has occurred within its internal waters, 
territorial sea or exclusive economic zone. The evidence 
and records of the case, together with any bond or other 
financial security posted with the authorities of the 
port State, shall in that event be transmitted to the 
coastal State. Such transmittal shall preclude the 
continuation of proceedings in the port State.

Article 219

Measures relating to seaworthiness of vessels to avoid 
pollution

Subject to section 7, States which, upon request or on 
their own initiative, have ascertained that a vessel 
within one of their ports or at one of their off-shore 
terminals is in violation of applicable international 
rules and standards relating to seaworthiness of vessels 
and thereby threatens damage to the marine environment 
shall, as far as practicable, take administrative 
measures to prevent the vessel from sailing. Such States 
may permit the vessel to proceed only to the nearest 
appropriate repair yard and, upon removal of the causes 
of the violation, shall permit the vessel to continue 
immediately.

Article 220

Enforcement by coastal States

1. When a vessel is voluntarily within a port or at an 
off-shore terminal of a State, that State may, subject 
to section 7, institute proceedings in respect of any 
violation of its laws and regulations adopted in 
accordance with this Convention or applicable 
international rules and standards for the prevention, 
reduction and control of pollution from vessels when the 
violation has occurred within the territorial sea or the 
exclusive economic zone of that State.

2. Where there are clear grounds for believing that a 
vessel navigating in the territorial sea of a State has, 
during its passage therein, violated laws and 
regulations of that State adopted in accordance with 
this Convention or applicable international rules and 
standards for the prevention, reduction and control of 
pollution from vessels, that State, without prejudice to 
the application of the relevant provisions of Part II, 
section 3, may undertake physical inspection of the 
vessel relating to the violation and may, where the 
evidence so warrants, institute proceedings, including 
detention of the vessel, in accordance with its laws, 
subject to the provisions of section 7.

3. Where there are clear grounds for believing that a 
vessel navigating in the exclusive economic zone or the 
territorial sea of a State has, in the exclusive 
economic zone, committed a violation of applicable 
international rules and standards for the prevention, 
reduction and control of pollution from vessels or laws 
and regulations of that State conforming and giving 
effect to such rules and standards, that State may 
require the vessel to give information regarding its 
identity and port of registry, its last and its next 
port of call and other relevant information required to 
establish whether a violation has occurred.

4. States shall adopt laws and regulations and take 
other measures so that vessels flying their flag comply 
with requests for information pursuant to paragraph 3.

5. Where there are clear grounds for believing that a 
vessel navigating in the exclusive economic zone or the 
territorial sea of a State has, in the exclusive 
economic zone, committed a violation referred to in 
paragraph 3 resulting in a substantial discharge causing 
or threatening significant pollution of the marine 
environment, that State may undertake physical 
inspection of the vessel for matters relating to the 
violation if the vessel has refused to give information 
or if the information supplied by the vessel is 
manifestly at variance with the evident factual 
situation and if the circumstances of the case justify 
such inspection.

6. Where there is clear objective evidence that a vessel 
navigating in the exclusive economic zone or the 
territorial sea of a State has, in the exclusive 
economic zone, committed a violation referred to in 
paragraph 3 resulting in a discharge causing major 
damage or threat of major damage to the coastline or 
related interests of the coastal State, or to any 
resources of its territorial sea or exclusive economic 
zone, that State may, subject to section 7, provided 
that the evidence so warrants, institute proceedings, 
including detention of the vessel, in accordance with 
its laws.

7. Notwithstanding the provisions of paragraph 6, 
whenever appropriate procedures have been established, 
either through the competent international organization 
or as otherwise agreed, whereby compliance with 
requirements for bonding or other appropriate financial 
security has been assured, the coastal State if bound by 
such procedures shall allow the vessel to proceed.

8. The provisions of paragraphs 3, 4, 5, 6 and 7 also 
apply in respect of national laws and regulations 
adopted pursuant to article 211, paragraph 6.

Article 221

Measures to avoid pollution arising from maritime 
casualties

1. Nothing in this Part shall prejudice the right of 
States, pursuant to international law, both customary 
and conventional, to take and enforce measures beyond 
the territorial sea proportionate to the actual or 
threatened damage to protect their coastline or related 
interests, including fishing, from pollution or threat 
of pollution following upon a maritime casualty or acts 
relating to such a casualty, which may reasonably be 
expected to result in major harmful consequences.

2. For the purposes of this article, "maritime casualty" 
means a collision of vessels, stranding or other 
incident of navigation, or other occurrence on board a 
vessel or external to it resulting in material damage or 
imminent threat of material damage to a vessel or cargo.
Article 222

Enforcement with respect to pollution from or through 
the atmosphere

States shall enforce, within the air space under their 
sovereignty or with regard to vessels flying their flag 
or vessels or aircraft of their registry, their laws and 
regulations adopted in accordance with article 212, 
paragraph 1, and with other provisions of this 
Convention and shall adopt laws and regulations and take 
other measures necessary to implement applicable 
international rules and standards established through 
competent international organizations or diplomatic 
conference to prevent, reduce and control pollution of 
the marine environment from or through the atmosphere, 
in conformity with all relevant international rules and 
standards concerning the safety of air navigation.

SECTION 7. SAFEGUARDS

Article 223

Measures to facilitate proceedings

In proceedings instituted pursuant to this Part, States 
shall take measures to facilitate the hearing of 
witnesses and the admission of evidence submitted by 
authorities of another State, or by the competent 
international organization, and shall facilitate the 
attendance at such proceedings of official 
representatives of the competent international 
organization, the flag State and any State affected by 
pollution arising out of any violation. The official 
representatives attending such proceedings shall have 
such rights and duties as may be provided under national 
laws and regulations or international law.

Article 224

Exercise of powers of enforcement

The powers of enforcement against foreign vessels under 
this Part may only be exercised by officials or by 
warships, military aircraft, or other ships or aircraft 
clearly marked and identifiable as being on government 
service and authorized to that effect.

Article 225

Duty to avoid adverse consequences in the exercise of 
the powers of enforcement

In the exercise under this Convention of their powers of 
enforcement against foreign vessels, States shall not 
endanger the safety of navigation or otherwise create 
any hazard to a vessel, or bring it to an unsafe port or 
anchorage, or expose the marine environment to an 
unreasonable risk.

Article 226

Investigation of foreign vessels

1.(a) States shall not delay a foreign vessel longer 
than is essential for purposes of the investigations 
provided for in articles 216, 218 and 220. Any physical 
inspection of a foreign vessel shall be limited to an 
examination of such certificates, records or other 
documents as the vessel is required to carry by 
generally accepted international rules and standards or 
of any similar documents which it is carrying; further 
physical inspection of the vessel may be undertaken only 
after such an examination and only when:

(i) there are clear grounds for believing that the 
condition of the vessel or its equipment does not 
correspond substantially with the particulars of those 
documents;

(ii) the contents of such documents are not sufficient 
to confirm or verify a suspected violation; or

(iii) the vessel is not carrying valid certificates and 
records.

(b) If the investigation indicates a violation of 
applicable laws and regulations or international rules 
and standards for the protection and preservation of the 
marine environment, release shall be made promptly 
subject to reasonable procedures such as bonding or 
other appropriate financial security.

(c) Without prejudice to applicable international rules 
and standards relating to the seaworthiness of vessels, 
the release of a vessel may, whenever it would present 
an unreasonable threat of damage to the marine 
environment, be refused or made conditional upon 
proceeding to the nearest appropriate repair yard. Where 
release has been refused or made conditional, the flag 
State of the vessel must be promptly notified, and may 
seek release of the vessel in accordance with Part XV.

2. States shall co-operate to develop procedures for the 
avoidance of necessary physical inspection of vessels at 
sea.

Article 227

Non-discrimination with respect to foreign vessels

In exercising their rights and performing their duties 
under this Part, States shall not discriminate in form 
or in fact against vessels of any other State.

Article 228

Suspension and restrictions on institution of 
proceedings

1. Proceedings to impose penalties in respect of any 
violation of applicable laws and regulations or 
international rules and standards relating to the 
prevention, reduction and control of pollution from 
vessels committed by a foreign vessel beyond the 
territorial sea of the State instituting proceedings 
shall be suspended upon the taking of proceedings to 
impose penalties in respect of corresponding charges by 
the flag State within six months of the date on which 
proceedings were first instituted, unless those 
proceedings relate to a case of major damage to the 
coastal State or the flag State in question has 
repeatedly disregarded its obligation to enforce 
effectively the applicable international rules and 
standards in respect of violations committed by its 
vessels. The flag State shall in due course make 
available to the State previously instituting 
proceedings a full dossier of the case and the records 
of the proceedings, whenever the flag State has 
requested the suspension of proceedings in accordance 
with this article. When proceedings instituted by the 
flag State have been brought to a conclusion, the 
suspended proceedings shall be terminated. Upon payment 
of costs incurred in respect of such proceedings, any 
bond posted or other financial security provided in 
connection with the suspended proceedings shall be 
released by the coastal State.

2. Proceedings to impose penalties on foreign vessels 
shall not be instituted after the expiry of three years 
from the date on which the violation was committed, and 
shall not be taken by any State in the event of 
proceedings having been instituted by another State 
subject to the provisions set out in paragraph 1.

3. The provisions of this article are without prejudice 
to the right of the flag State to take any measures, 
including proceedings to impose penalties, according to 
its laws irrespective of prior proceedings by another 
State.

Article 229

Institution of civil proceedings

Nothing in this Convention affects the institution of 
civil proceedings in respect of any claim for loss or 
damage resulting from pollution of the marine 
environment.

Article 230

Monetary penalties and the observance of recognized 
rights of the accused

1. Monetary penalties only may be imposed with respect 
to violations of national laws and regulations or 
applicable international rules and standards for the 
prevention, reduction and control of pollution of the 
marine environment, committed by foreign vessels beyond 
the territorial sea.

2. Monetary penalties only may be imposed with respect 
to violations of national laws and regulations or 
applicable international rules and standards for the 
prevention, reduction and control of pollution of the 
marine environment, committed by foreign vessels in the 
territorial sea, except in the case of a wilful and 
serious act of pollution in the territorial sea.

3. In the conduct of proceedings in respect of such 
violations committed by a foreign vessel which may 
result in the imposition of penalties, recognized rights 
of the accused shall be observed.

Article 231

Notification to the flag State and other States 
concerned

States shall promptly notify the flag State and any 
other State concerned of any measures taken pursuant to 
section 6 against foreign vessels and shall submit to 
the flag State all official reports concerning such 
measures. However, with respect

United Nations Convention on the Law of the Sea




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8. UNITED NATIONS CONVENTION ON THE LAW OF THE SEA

(Montego Bay, 10 December 1982)

The States Parties to this Convention, (...) Recognizing 
the desirability of establishing through this 
Convention, with due regard for the sovereignty of all 
States, a legal order for the seas and oceans which will 
facilitate international communication, and will promote 
the peaceful uses of the seas and oceans, the equitable 
and efficient utilization of their resources, the 
conservation of their living resources, and the study, 
protection and preservation of the marine environment, 
(...)

PART I

INTRODUCTION

Article 1

Use of terms and scope

1. For the purposes of this Convention:

(1) "Area" means the sea-bed and ocean floor and subsoil 
thereof, beyonds the limits of national jurisdiction;
(...)

(4) "pollution of the marine environment" means the 
introduction by man, directly or indirectly, of 
substances or energy into the marine environment, 
including estuaries, which results or is likely to 
result in such deleterious effects as harm to living 
resources and marine life, hazards to human health, 
hindrance to marine activities, including fishing and 
other legitimate uses of the sea, impairment of quality 
for use of sea water and reduction of amenities;

(5) (a) "dumping" means:

(i) any deliberate disposal of wastes or other matter 
from vessels, aircraft, platforms or other man-made 
structures at sea;

(ii) any deliberate disposal of vessels, aircraft, 
platforms or other man-made structures at sea;

(b) "dumping" does not include:

(i) the disposal of wastes or other matter incidental 
to, or derived from the normal operations of vessels, 
aircraft, platforms or other man-made structures at sea 
and their equipment, other than wastes or other matter 
transported by or to vessels, aircraft, platforms or 
other man-made structures at sea, operating for the 
purpose of disposal of such matter or derived from the 
treatment of such wastes or other matter on such 
vessels, aircraft, platforms or structures;

(ii) placement of matter for a purpose other than the 
mere disposal thereof, provided that such placement is 
not contrary to the aims of this Convention.
(...)

PART II

TERRITORIAL SEA AND CONTIGUOUS ZONE

SECTION 3. INNOCENT PASSAGE IN THE TERRITORIAL SEA

Article 19

Meaning of innocent passage

(...)

2. Passage of a foreign ship shall be considered to be 
prejudicial to the peace, good order or security of the 
coastal State if in the territorial seas it engages in 
any of the following activities: (...)

(h)any act of wilful and serious pollution contrary to 
this Convention; (...)

Article 21

Laws and regulations of the coastal State relating to 
innocent passage

1. The coastal State may adopt laws and regulations, in 
conformity with the provisions of this Convention and 
other rules of international law, relating to innocent 
passage through the territorial sea, in respect of all 
or any of the following:

(...)

(f) the preservation of the environment of the coastal 
State and the prevention, reduction and control of 
pollution thereof; (...)

Article 22

Sea lanes and traffic separation schemes in the 
territorial sea

1. The coastal State may, where necessary having regard 
to the safety of navigation, require foreign ships 
exercising the right of innocent passage through its 
territorial sea to use such sea lanes and traffic 
separation schemes as it may designate or prescribe for 
the regulation of the passage of ships.

2. In particular, tankers, nuclear-powered ships and 
ships carrying nuclear or other inherently dangerous or 
noxious substances or materials may be required to 
confine their passage to such sea lanes.

(...)

Article 23

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances 
shall, when exercising the right of innocent passage 
through the territorial sea, carry documents and observe 
special precautionary measures established for such 
ships by international agreements.

(...)

PART III

STRAITS USED FOR INTERNATIONAL NAVIGATION

SECTION 2. TRANSIT PASSAGE

Article 39

Duties of ships and aircraft during transit passage

(...)

2. Ships in transit passage shall:

(...)

(b) comply with generally accepted international 
regulations, procedures and practices for the 
prevention, reduction and control of pollution from 
ships. (...)

Article 42

Laws and regulations of States bordering straits 
relating to transit passage

1. Subject to the provisions of this section, States 
bordering straits may adopt laws and regulations 
relating to transit passage through straits, in respect 
of all or any of the following:

(...)

(b) the prevention, reduction and control of pollution, 
by giving effect to applicable international regulations 
regarding the discharge of oil, oily wastes and other 
noxious substances in the straits;

(...)

Article 43

Navigational and safety aids and other improvements and 
the prevention, reduction and control of pollution

User States and States bordering a strait should by 
agreement co-operate:

(...)

(b) for the prevention, reduction and control of 
pollution from ships.

PART IV

ARCHIPELAGIC STATES

Article 54

Duties of ships and aircraft during their passage, 
research and survey activities, duties of the 
archipelagic State and laws and regulations of the 
archipelagic State relating to archipelagic sea lanes 
passage Articles 39, 40, 42 and 44 apply mutatis 
mutandis to archipelagic sea lanes passage.

PART V

EXCLUSIVE ECONOMIC ZONE

Article 56

Rights, jurisdiction and duties of the coastal State in 
the exclusive economic zone 

1. In the exclusive economic zone, the coastal State 
has:

(...)

(b) jurisdiction as provided for in the relevant 
provisions of this Convention with regard to:

(...)

(iii) the protection and preservation of the marine 
environment; (...)

Article 60

Artificial islands, installations and structures in the 
exclusive economic zone

(...)

3. Due notice must be given of the construction of such 
artificial islands, installations or structures, and 
permanent means for giving warning of their presence 
must be maintained. Any installations or structures 
which are abandoned or disused shall be removed to 
ensure safety of navigation, taking into account any 
generally accepted international standards established 
in this regard by the competent international 
organization. Such removal shall also have due regard to 
fishing, the protection of the marine environment and 
the rights and duties of other States. Appropriate 
publicity shall be given to the depth, position and 
dimensions of any installations or structures not 
entirely removed.

(...)

Article 65

Marine mammals

Nothing in this Part restricts the right of a coastal 
State or the competence of an international 
organization, as appropriate, to prohibit, limit or 
regulate the exploitation of marine mammals more 
strictly than provided for in this Part. States shall 
co-operate with a view to the conservation of marine 
mammals and in the case of cetaceans shall in particular 
work through the appropriate international organizations 
for their conservation, management and study.

PART VI

CONTINENTAL SHELF

Article 79

Submarine cables and pipelines on the continental shelf

(...)

2. Subject to its right to take reasonable measures for 
the exploration of the continental shelf, the 
exploitation of its natural resources and the 
prevention, reduction and control of pollution from 
pipelines, the coastal State may not impede the laying 
or maintenance of such cables or pipelines.

(...)

Article 80

Artificial islands, installations and structures on the 
continental shelf

Article 60 applies mutatis mutandis to artificial 
islands, installations and structures on the continental 
shelf.

PART VII

HIGH SEAS

SECTION 1. GENERAL PROVISIONS

Article 94

Duties of the flag State

(...)

7. Each State shall cause an inquiry to be held by or 
before a suitably qualified person or persons into every 
marine casualty or incident of navigation on the high 
seas involving a ship flying its flag and causing loss 
of life or serious injury to nationals of another state 
or serious damage to ships or installations of another 
State or to the marine environment. The flag State and 
the other State shall co-operate in the conduct of any 
inquiry held by that other State into any such marine 
casualty or incident of navigation.

SECTION 2. CONSERVATION AND MANAGEMENT OF THE LIVING 
RESOURCES OF THE HIGH SEAS

Article 120

Marine mammals

Article 65 also applies to the conservation and 
management of marine mammals in the high seas.


PART IX ENCLOSED OR SEMI-ENCLOSED SEAS

Article 123

Co-operation of States bordering enclosed or semi-
enclosed seas

States bordering an enclosed or semi-enclosed sea should 
co-operate with each other in the exercise of their 
rights and in the performance of their duties under this 
Convention. To this end they shall endeavour, directly 
or through an appropriate regional organization:

(...)

(b) to co-ordinate the implementation of their rights 
and duties with respect to the protection and 
preservation of the marine environment;

(...)


PART XI

THE AREA

SECTION 2. PRINCIPLES GOVERNING THE AREA

Article 142

Rights and legitimate interests of coastal States

(...)

3. Neither this Part nor any rights granted or exercised 
pursuant thereto shall affect the rights of coastal 
States to take such measures consistent with the 
relevant provisions of Part XII as may be necessary to 
prevent, mitigate or eliminate grave and imminent danger 
to their coastline, or related interests from pollution 
or threat thereof or from other hazardous occurrences 
resulting from or caused by any activities in the Area.


Article 145

Protection of the marine environment

Necessary measures shall be taken in accordance with 
this Convention with respect to activities in the Area 
to ensure effective protection for the marine 
environment from harmful effects which may arise from 
such activities. To this end the Authority shall adopt 
appropriate rules, regulations and procedures for inter 
alia:

(a) the prevention, reduction and control of pollution 
and other hazards to the marine environment, including 
the coastline, and of interference with the ecological 
balance of the marine environment, particular attention 
being paid to the need for protection from harmful 
effects of such activities as drilling, dredging, 
excavation, disposal of waste, construction and 
operation or maintenance of installations, pipelines and 
other devices related to such activities;

(b) the protection and conservation of the natural 
resources of the Area and the prevention of damage to 
the flora and fauna of the marine environment.

SECTION 4. THE AUTHORITY

SUBSECTION C. THE COUNCIL

Article 162

Powers and functions

(...)

2. In addition, the Council shall:

(...)

(w) issue emergency orders, which may include orders for 
the suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area;

(x) disapprove areas for exploitation by contractors or 
the Enterprise in cases where substantial evidence 
indicates the risk of serious harm to the marine 
environment;

(...)

Article 165

The Legal and Technical Commission

1. Members of the Legal and Technical Commission shall 
have appropriate qualifications such as those relevant 
to exploration for and exploitation and processing of 
mineral resources, oceanology, protection of the marine 
environment, or economic or legal matters relating to 
ocean mining and related fields of expertise. The 
Council shall endeavour to ensure that the membership of 
the Commission reflects all appropriate qualifications.

2. The Commission shall:

(...)

(e) make recommendations to the Council on the 
protection of the marine environment, taking into 
account the views of recognized experts in that field;

(f) formulate and submit to the Council the rules, 
regulations and procedures referred to in article 162, 
paragraph 2(o), taking into account all relevant factors 
including assessments of the environmental implications 
of activities in the Area;

(...)

(h) make recommendations to the Council regarding the 
establishment of a monitoring programme to observe, 
measure, evaluate and analyse, by recognized scientific 
methods, on a regular basis, the risks or effects of 
pollution of the marine environment resulting from 
activities in the Area, ensure that existing regulations 
are adequate and are complied with and co-ordinate the 
implementation of the monitoring programme approved by 
the Council;

(...)

(k) make recommendations to the Council to issue 
emergency orders, which may include orders for the 
suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area. Such recommendations shall be 
taken up by the Council on a priority basis;

(l) make recommendations to the Council to disapprove 
areas for exploitation by contractors or the Enterprise 
in cases where substantial evidence indicates the risk 
of serious harm to the marine environment;

(...)

PART XII

PROTECTION AND PRESERVATION OF THE MARINE ENVIRONMENT
SECTION 1. GENERAL PROVISIONS

Article 192

General obligation

States have the obligation to protect and preserve the 
marine environment.

Article 193

Sovereign right of States to exploit their natural 
resources

States have the sovereign right to exploit their natural 
resources pursuant to their environmental policies and 
in accordance with their duty to protect and preserve 
the marine environment.

Article 194

Measures to prevent, reduce and control pollution of the 
marine environment

1. States shall take, individually or jointly as 
appropriate, all measures consistent with this 
Convention that are necessary to prevent, reduce and 
control pollution of the marine environment from any 
source, using for this purpose the best practicable 
means at their disposal and in accordance with their 
capabilities, and they shall endeavour to harmonize 
their policies in this connection.

2. States shall take all measures necessary to ensure 
that activities under their jurisdiction or control are 
so conducted as not to cause damage by pollution to 
other States and their environment, and that pollution 
arising from incidents or activities under their 
jurisdiction or control does not spread beyond the areas 
where they exercise sovereign rights in accordance with 
this Convention. 3. The measures taken pursuant to this 
Part shall deal with all sources of pollution of the 
marine environment. These measures shall include, inter 
alia, those designed to minimize to the fullest possible 
extent:

(a) the release of toxic, harmful or noxious substances, 
especially those which are persistent, from land-based 
sources, from or through the atmosphere or by dumping;

(b) pollution from vessels, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, preventing 
intentional and unintentional discharges, and regulating 
the design, construction, equipment, operation and 
manning of vessels;

(c) pollution from installations and devices used in 
exploration or exploitation of the natural resources of 
the sea-bed and subsoil, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, and regulating 
the design, construction, equipment, operation and 
manning of such installations or devices;

(d) pollution from other installations and devices 
operating in the marine environment, in particular 
measures for preventing accidents and dealing with 
emergencies, ensuring the safety of operations at sea, 
and regulating the design, construction, equipment, 
operation and manning of such installations or devices.

4. In taking measures to prevent, reduce or control 
pollution of the marine environment, States shall 
refrain from unjustifiable interference with activities 
carried out by other States in the exercise of their 
rights and in pursuance of their duties in conformity 
with this Convention.

5. The measures taken in accordance with this Part shall 
include those necessary to protect and preserve rare or 
fragile ecosystems as well as the habitat of depleted, 
threatened or endangered species and other forms of 
marine life.

Article 195

Duty not to transfer damage or hazards or transform one 
type of pollution into another In taking measures to 
prevent, reduce and control pollution of the marine 
environment, States shall act so as not to transfer, 
directly or indirectly, damage or hazards from one area 
to another or transform one type of pollution into 
another.

Article 196

Use of technologies or introduction of alien or new 
species

1. States shall take all measures necessary to prevent, 
reduce and control pollution of the marine environment 
resulting from the use of technologies under their 
jurisdiction or control, or the intentional or 
accidental introduction of species, alien or new, to a 
particular part of the marine environment, which may 
cause significant and harmful changes thereto.

2. This article does not affect the application of this 
Convention regarding the prevention, reduction and 
control of pollution of the marine environment.

SECTION 2. GLOBAL AND REGIONAL CO-OPERATION

Article 197

Co-operation on a global or regional basis

States shall co-operate on a global basis and, as 
appropriate, on a regional basis, directly or through 
competent international organizations, in formulating 
and elaborating international rules, standards and 
recommended practices and procedures consistent 
with this Convention, for the protection and 
preservation of the marine environment, taking into 
account characteristic regional features.

Article 198

Notification of imminent or actual damage

When a State becomes aware of cases in which the marine 
environment is in imminent danger of being damaged or 
has been damaged by pollution, it shall immediately 
notify other States it deems likely to be affected by 
such damage, as well as the competent international 
organizations.

Article 199

Contingency plans against pollution

In the cases referred to in article 198, States in the 
area affected, in accordance with their capabilities, 
and the competent international organizations shall co-
operate, to the extent possible, in eliminating the 
effects of pollution and preventing or minimizing the 
damage. To this end, States shall jointly develop and 
promote contingency plans for responding to pollution 
incidents in the marine environment.

Article 200

Studies, research programmes and exchange of information 
and data States shall co-operate, directly or through 
competent international organizations, for the purpose 
of promoting studies, undertaking programmes of 
scientific research and encouraging the exchange of 
information and data acquired about pollution of the 
marine environment. They shall endeavour to participate 
actively in regional and global programmes to acquire 
knowledge for the assessment of the nature and extent of 
pollution, exposure to it, and its pathways, risks and 
remedies.

Article 201

Scientific criteria for regulations

In the light of the information and data acquired 
pursuant to article 200, States shall co-operate, 
directly or through competent international 
organizations, in establishing appropriate scientific 
criteria for the formulation and elaboration of rules, 
standards and recommended practices and procedures for 
the prevention, reduction and control of pollution of 
the marine environment.

SECTION 3. TECHNICAL ASSISTANCE

Article 202

Scientific and technical assistance to developing States

States shall, directly or through competent 
international organizations:

(a) promote programmes of scientific, educational, 
technical and other assistance to developing States for 
the protection and preservation of the marine 
environment and the prevention, reduction and control of 
marine pollution. Such assistance shall include, inter 
alia:

(i) training of their scientific and technical 
personnel;

(ii) facilitating their participation in relevant 
international programmes;

(iii) supplying them with necessary equipment and 
facilities; 

(iv) enhancing their capacity to manufacture such 
equipment; 

(v) advice on and developing facilities for research, 
monitoring, educational and other programmes;

(b) provide appropriate assistance, especially to 
developing States, for the minimization of the effects 
of major incidents which may cause serious pollution of 
the marine environment;

(c) provide appropriate assistance, especially to 
developing States, concerning the preparation of 
environmental assessments.

Article 203

Preferential treatment for developing States

Developing States shall, for the purposes of prevention, 
reduction and control of pollution of the marine 
environment or minimization of its effects, be granted 
preference by international organizations in:

(a) the allocation of appropriate funds and technical 
assistances; and

(b) the utilization of their specialized services.

SECTION 4. MONITORING AND ENVIRONMENTAL ASSESSMENT


Article 204

Monitoring of the risks or effects of pollution

1. States shall, consistent with the rights of other 
States, endeavour, as far as practicable, directly or 
through the competent international organizations, to 
observe, measure, evaluate and analyse, by recognized 
scientific methods, the risks or effects of pollution of 
the marine environment.

2. In particular, States shall keep under surveillance 
the effects of any activities which they permit or in 
which they engage in order to determine whether these 
activities are likely to pollute the marine environment.

Article 205

Publication of reports

States shall publish reports of the results obtained 
pursuant to article 204 or provide such reports at 
appropriate intervals to the competent international 
organizations, which should make them available to all 
States.

Article 206

Assessment of potential effects of activities

When States have reasonable grounds for believing that 
planned activities under their jurisdiction or control 
may cause substantial pollution of or significant and 
harmful changes to the marine environment, they shall, 
as far as practicable, assess the potential effects of 
such activities on the marine environment and shall 
communicate reports of the results of such assessments 
in the manner provided in article 205.

SECTION 5. INTERNATIONAL RULES AND NATIONAL LEGISLATION 
TO PREVENT, REDUCE AND CONTROL POLLUTION OF THE MARINE 
ENVIRONMENT

Article 207

Pollution from land-based sources

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from land-based sources, including rivers, estuaries, 
pipelines and outfall structures, taking into account 
internationally agreed rules, standards and recommended 
practices and procedures.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control pollution of the marine 
environment from land-based sources, taking into account 
characteristic regional features, the economic capacity 
of developing States and their need for economic 
development. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

5. Laws, regulations, measures, rules, standards and 
recommended practices and procedures referred to in 
paragraphs 1, 2 and 4 shall include those designed to 
minimize, to the fullest extent possible, the release of 
toxic, harmful or noxious substances, especially those 
which are persistent, into the marine environment.

Article 208

Pollution from sea-bed activities subject to national 
jurisdiction


1. Coastal States shall adopt laws and regulations to 
prevent, reduce and control pollution of the marine 
environment arising from or in connection with sea-bed 
activities subject to their jurisdiction and from 
artificial islands, installations and structures under 
their jurisdiction, pursuant to articles 60 and 80.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall be no less 
effective than international rules, standards and 
recommended practices and procedures.

4. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

5. States, acting especially through competent 
international organizations or diplomatic conference, 
shall establish global and regional rules, standards and 
recommended practices and procedures to prevent, reduce 
and control pollution of the marine environment referred 
to in paragraph 1. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

Article 209

Pollution from activities in the Area

1. International rules, regulations and procedures shall 
be established in accordance with Part XI to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area. Such rules, regulations and 
procedures shall be re-examined from time to time as 
necessary.

2. Subject to the relevant provisions of this section, 
States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area undertaken by vessels, 
installations, structures and other devices flying their 
flag or of their registry or operating under their 
authority, as the case may be. The requirements of such 
laws and regulations shall be no less effective than the 
international rules, regulations and procedures referred 
to in paragraph 1.

Article 210

Pollution by dumping

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
by dumping.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall ensure that 
dumping is not carried out without the permission of the 
competent authorities of States.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control such pollution. Such rules, 
standards and recommended practices and procedures shall 
be re-examined from time to time as necessary.

5. Dumping within the territorial sea and the exclusive 
economic zone or onto the continental shelf shall not be 
carried out without the express prior approval of the 
coastal State, which has the right to permit, regulate 
and control such dumping after due consideration of the 
matter with other States which by reason of their 
geographical situation may be adversely affected 
thereby.

6. National laws, regulations and measures shall be no 
less effective in preventing, reducing and controlling 
such pollution than the global rules and standards.

Article 211

Pollution from vessels

1. States, acting through the competent international 
organization or general diplomatic conference, shall 
establish international rules and standards to prevent, 
reduce and control pollution of the marine environment 
from vessels and promote the adoption, in the same 
manner, wherever appropriate, of routeing systems 
designed to minimize the threat of accidents which might 
cause pollution of the marine environment, including the 
coastline, and pollution damage to the related interests 
of coastal States. Such rules and standards shall, in 
the same manner, be re-examined from time to time as 
necessary.

2. States shall adopt laws and regulations for the 
prevention, reduction and control of pollution of the 
marine environment from vessels flying their flag or of 
their registry. Such laws and regulations shall at least 
have the same effect as that of generally accepted 
international rules and standards established through 
the competent international organization or general 
diplomatic conference.

3. States which establish particular requirements for 
the prevention, reduction and control of pollution of 
the marine environment as a condition for the entry of 
foreign vessels into their ports or internal waters or 
for a call at their off-shore terminals shall give due 
publicity to such requirements and shall communicate 
them to the competent international organization. 
Whenever such requirements are established in identical 
form by two or more coastal States in an endeavour to 
harmonize policy, the communication shall indicate which 
States are participating in such co-operative 
arrangements. Every State shall require the master of a 
vessel flying its flag or of its registry, when 
navigating within the territorial sea of a State 
participating in such co-operative arrangements, to 
furnish, upon the request of that State, information as 
to whether it is proceeding to a State of the same 
region participating in such co-operative arrangements 
and, if so, to indicate whether it complies with the 
port entry requirements of that State. This article is 
without prejudice to the continued exercise by a vessel 
of its right of innocent passage or to the application 
of article 25, paragraph 2.

4. Coastal States may, in the exercise of their 
sovereignty within their territorial sea, adopt laws and 
regulations for the prevention, reduction and control of 
marine pollution from foreign vessels, including vessels 
exercising the right of innocent passage. Such laws and 
regulations shall, in accordance with Part II, section 
3, not hamper innocent passage of foreign vessels.

5. Coastal States, for the purpose of enforcement as 
provided for in section 6, may in respect of their 
exclusive economic zones adopt laws and regulations for 
the prevention, reduction and control of pollution from 
vessels conforming to and giving effect to generally 
accepted international rules and standards established 
through the competent international organization or 
general diplomatic conference.

6. (a) Where the international rules and standards 
referred to in paragraph 1 are inadequate to meet 
special circumstances and coastal States have reasonable 
grounds for believing that a particular, clearly defined 
area of their respective exclusive economic zones is an 
area where the adoption of special mandatory measures 
for the prevention of pollution from vessels is required 
for recognized technical reasons in relation to its 
oceanographical and ecological conditions, as well as 
its utilization or the protection of its resources and 
the particular character of its traffic, the coastal 
States, after appropriate consultations through the 
competent international organization with any other 
States concerned, may, for that area, direct a 
communication to that organization, submitting 
scientific and technical evidence in support and 
information on necessary reception facilities. Within 12 
months after receiving such a communication, the 
organization shall determine whether the conditions in 
that area correspond to the requirements set out above. 
If the organization so determines, the coastal States 
may, for that area, adopt laws and regulations 
for the prevention, reduction and control of pollution 
from vessels implementing such international rules and 
standards or navigational practices as are made 
applicable, through the organization, for special areas. 
These laws and regulations shall not become applicable 
to foreign vessels until 15 months after the submission 
to the communication to the organization.

(b) The coastal States shall publish the limits of any 
such particular, clearly defined area.

(c) If the coastal States intend to adopt additional 
laws and regulations for the same area for the 
prevention, reduction and control of pollution from 
vessels, they shall, when submitting the aforesaid 
communication, at the same time notify the organization 
thereof. Such additional laws and regulations may relate 
to discharges or navigational practices but shall not 
require foreign vessels to observe design, construction, 
manning or equipment standards other than generally 
accepted international rules and standards; they shall 
become applicable to foreign vessels 15 months after the 
submission of the communication to the organization, 
provided that the organization agrees within 12 months 
after the submission of the communication.

7. The international rules and standards referred to in 
this article should include inter alia those relating to 
prompt notification to coastal States, whose coastline 
or related interests may be affected by incidents, 
including maritime casualties, which involve discharges 
or probability of discharges.

Article 212

Pollution from or through the atmosphere

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from or through the atmosphere, applicable to the air 
space under their sovereignty and to vessels flying 
their flag or vessels or aircraft of their registry, 
taking into account internationally agreed rules, 
standards and recommended practices and procedures and 
the safety of air navigation.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control such pollution.

SECTION 6. ENFORCEMENT

Article 213

Enforcement with respect to pollution from land-based 
sources

States shall enforce their laws and regulations adopted 
in accordance with article 207 and shall adopt laws and 
regulations and take other measures necessary to 
implement applicable international rules and standards 
established through competent international organiza-
tions or diplomatic conference to prevent, reduce and 
control pollution of the marine environment from land-
based sources.

Article 214

Enforcement with respect to pollution from sea-bed 
activities


States shall enforce their laws and regulations adopted 
in accordance with article 208 and shall adopt laws and 
regulations and take other measures necessary to 
implement applicable international rules and standards 
established through competent international 
organizations or diplomatic conference to prevent, 
reduce and control pollution of the marine environment 
arising from or in connection with sea-bed activities 
subject to their jurisdiction and from artificial 
islands, installations and structures under their 
jurisdiction, pursuant to articles 60 and 80.

Article 215

Enforcement with respect to pollution from activities in 
the Area

Enforcement of international rules, regulations and 
procedures established in accordance with Part XI to 
prevent, reduce and control pollution of the marine 
environment from activities in the Area shall be 
governed by that Part.

Article 216

Enforcement with respect to pollution by dumping

1. Laws and regulations adopted in accordance with this 
Convention and applicable international rules and 
standards established through competent international 
organizations or diplomatic conference for the 
prevention, reduction and control of pollution of the 
marine environment by dumping shall be enforced:

(a) by the coastal State with regard to dumping within 
its territorial sea or its exclusive economic zone or 
onto its continental shelf;

(b) by the flag State with regard to vessels flying its 
flag or vessels or aircraft of its registry;

(c) by any State with regard to acts of loading of 
wastes or other matter occurring within its territory or 
at its off-shore terminals. 2. No State shall be obliged 
by virtue of this article to institute proceedings when 
another State has already instituted proceedings 
in accordance with this article.

Article 217

Enforcement by flag States

1. States shall ensure compliance by vessels flying 
their flag or of their registry with applicable 
international rules and standards, established through 
the competent international organization or general 
diplomatic conference, and with their laws and 
regulations adopted in accordance with this Convention 
for the prevention, reduction and control of pollution 
of the marine environment from vessels and shall 
accordingly adopt laws and regulations and take other 
measures necessary for their implementation. Flag States 
shall provide for the effective enforcement of such 
rules, standards, laws and regulations, irrespective of 
where a violation occurs.

2. States shall, in particular, take appropriate 
measures in order to ensure that vessels flying their 
flag or of their registry are prohibited from sailing, 
until they can proceed to sea in compliance with the 
requirements of the international rules and standards 
referred to in paragraph 1, including requirements in 
respect of design, construction, equipment and manning 
of vessels.

3. States shall ensure that vessels flying their flag or 
of their registry carry on board certificates required 
by and issued pursuant to international rules and 
standards referred to in paragraph 1. States shall 
ensure that vessels flying their flag are periodically 
inspected in order to verify that such certificates are 
in conformity with the actual condition of the vessels. 
These certificates shall be accepted by other States as 
evidence of the condition of the vessels and shall be 
regarded as having the same force as certificates issued 
by them, unless there are clear grounds for believing 
that the condition of the vessel does not correspond 
substantially with the particulars of the certificates.

4. If a vessel commits a violation of rules and 
standards established through the competent inter-
national organization or general diplomatic conference, 
the flag State, without prejudice to articles 218, 220 
and 228, shall provide for immediate investigation and 
where appropriate institute proceedings in respect of 
the alleged violation irrespective of where the 
violation occurred or where the pollution caused by such 
violation has occurred or has been spotted. 

5. Flag States conducting an investigation of the 
violation may request the assistance of any other State 
whose co-operation could be useful in clarifying the 
circumstances of the case. States shall endeavour to 
meet appropriate requests of flag States.

6. States shall, at the written request of any State, 
investigate any violation alleged to have been committed 
by vessels flying their flag. If satisfied that 
sufficient evidence is available to enable proceedings 
to be brought in respect of the alleged violation, flag 
States shall without delay institute such proceedings in 
accordance with their laws.

7. Flag States shall promptly inform the requesting 
State and the competent international organization of 
the action taken and its outcome. Such information shall 
be available to all States.

8. Penalties provided for by the laws and regulations of 
States for vessels flying their flag shall be adequate 
in severity to discourage violations wherever they 
occur.

Article 218

Enforcement by port States

1. When a vessel is voluntarily within a port or at an 
off-shore terminal of a State, that State may undertake 
investigations and, where the evidence so warrants, 
institute proceedings in respect of any discharge from 
that vessel outside the internal waters, territorial sea 
or exclusive economic zone of that State in violation of 
applicable international rules and standards established 
through the competent international organization or 
general diplomatic conference.

2. No proceedings pursuant to paragraph 1 shall be 
instituted in respect of a discharge violation in the 
internal waters, territorial sea or exclusive economic 
zone of another State unless requested by that State, 
the flag State, or a State damaged or threatened by the 
discharge violation, or unless the violation has caused 
or is likely to cause pollution in the internal waters, 
territorial sea or exclusive economic zone of the State 
instituting the proceedings. 

3. When a vessel is voluntarily within a port or at an 
off-shore terminal of a State, that State shall, as far 
as practicable, comply with requests from any State for 
investigation of a discharge violation referred to in 
paragraph 1, believed to have occurred in, caused, or 
threatened damage to the internal waters, territorial 
sea or exclusive economic zone of the requesting State. 
It shall likewise, as far as practicable, comply with 
requests from the flag State for investigation of such a 
violation, irrespective of where the violation occurred.

4. The records of the investigation carried out by a 
port State pursuant to this article shall be transmitted 
upon request to the flag State or to the coastal State. 
Any proceedings instituted by the port State on the 
basis of such an investigation may, subject to section 
7, be suspended at the request of the coastal State when 
the violation has occurred within its internal waters, 
territorial sea or exclusive economic zone. The evidence 
and records of the case, together with any bond or other 
financial security posted with the authorities of the 
port State, shall in that event be transmitted to the 
coastal State. Such transmittal shall preclude the 
continuation of proceedings in the port State.

Article 219

Measures relating to seaworthiness of vessels to avoid 
pollution

Subject to section 7, States which, upon request or on 
their own initiative, have ascertained that a vessel 
within one of their ports or at one of their off-shore 
terminals is in violation of applicable international 
rules and standards relating to seaworthiness of vessels 
and thereby threatens damage to the marine environment 
shall, as far as practicable, take administrative 
measures to prevent the vessel from sailing. Such States 
may permit the vessel to proceed only to the nearest 
appropriate repair yard and, upon removal of the causes 
of the violation, shall permit the vessel to continue 
immediately.

Article 220

Enforcement by coastal States

1. When a vessel is voluntarily within a port or at an 
off-shore terminal of a State, that State may, subject 
to section 7, institute proceedings in respect of any 
violation of its laws and regulations adopted in 
accordance with this Convention or applicable 
international rules and standards for the prevention, 
reduction and control of pollution from vessels when the 
violation has occurred within the territorial sea or the 
exclusive economic zone of that State.

2. Where there are clear grounds for believing that a 
vessel navigating in the territorial sea of a State has, 
during its passage therein, violated laws and 
regulations of that State adopted in accordance with 
this Convention or applicable international rules and 
standards for the prevention, reduction and control of 
pollution from vessels, that State, without prejudice to 
the application of the relevant provisions of Part II, 
section 3, may undertake physical inspection of the 
vessel relating to the violation and may, where the 
evidence so warrants, institute proceedings, including 
detention of the vessel, in accordance with its laws, 
subject to the provisions of section 7.

3. Where there are clear grounds for believing that a 
vessel navigating in the exclusive economic zone or the 
territorial sea of a State has, in the exclusive 
economic zone, committed a violation of applicable 
international rules and standards for the prevention, 
reduction and control of pollution from vessels or laws 
and regulations of that State conforming and giving 
effect to such rules and standards, that State may 
require the vessel to give information regarding its 
identity and port of registry, its last and its next 
port of call and other relevant information required to 
establish whether a violation has occurred.

4. States shall adopt laws and regulations and take 
other measures so that vessels flying their flag comply 
with requests for information pursuant to paragraph 3.

5. Where there are clear grounds for believing that a 
vessel navigating in the exclusive economic zone or the 
territorial sea of a State has, in the exclusive 
economic zone, committed a violation referred to in 
paragraph 3 resulting in a substantial discharge causing 
or threatening significant pollution of the marine 
environment, that State may undertake physical 
inspection of the vessel for matters relating to the 
violation if the vessel has refused to give information 
or if the information supplied by the vessel is 
manifestly at variance with the evident factual 
situation and if the circumstances of the case justify 
such inspection.

6. Where there is clear objective evidence that a vessel 
navigating in the exclusive economic zone or the 
territorial sea of a State has, in the exclusive 
economic zone, committed a violation referred to in 
paragraph 3 resulting in a discharge causing major 
damage or threat of major damage to the coastline or 
related interests of the coastal State, or to any 
resources of its territorial sea or exclusive economic 
zone, that State may, subject to section 7, provided 
that the evidence so warrants, institute proceedings, 
including detention of the vessel, in accordance with 
its laws.

7. Notwithstanding the provisions of paragraph 6, 
whenever appropriate procedures have been established, 
either through the competent international organization 
or as otherwise agreed, whereby compliance with 
requirements for bonding or other appropriate financial 
security has been assured, the coastal State if bound by 
such procedures shall allow the vessel to proceed.

8. The provisions of paragraphs 3, 4, 5, 6 and 7 also 
apply in respect of national laws and regulations 
adopted pursuant to article 211, paragraph 6.

Article 221

Measures to avoid pollution arising from maritime 
casualties

1. Nothing in this Part shall prejudice the right of 
States, pursuant to international law, both customary 
and conventional, to take and enforce measures beyond 
the territorial sea proportionate to the actual or 
threatened damage to protect their coastline or related 
interests, including fishing, from pollution or threat 
of pollution following upon a maritime casualty or acts 
relating to such a casualty, which may reasonably be 
expected to result in major harmful consequences.

2. For the purposes of this article, "maritime casualty" 
means a collision of vessels, stranding or other 
incident of navigation, or other occurrence on board a 
vessel or external to it resulting in material damage or 
imminent threat of material damage to a vessel or cargo.
Article 222

Enforcement with respect to pollution from or through 
the atmosphere

States shall enforce, within the air space under their 
sovereignty or with regard to vessels flying their flag 
or vessels or aircraft of their registry, their laws and 
regulations adopted in accordance with article 212, 
paragraph 1, and with other provisions of this 
Convention and shall adopt laws and regulations and take 
other measures necessary to implement applicable 
international rules and standards established through 
competent international organizations or diplomatic 
conference to prevent, reduce and control pollution of 
the marine environment from or through the atmosphere, 
in conformity with all relevant international rules and 
standards concerning the safety of air navigation.

SECTION 7. SAFEGUARDS

Article 223

Measures to facilitate proceedings

In proceedings instituted pursuant to this Part, States 
shall take measures to facilitate the hearing of 
witnesses and the admission of evidence submitted by 
authorities of another State, or by the competent 
international organization, and shall facilitate the 
attendance at such proceedings of official 
representatives of the competent international 
organization, the flag State and any State affected by 
pollution arising out of any violation. The official 
representatives attending such proceedings shall have 
such rights and duties as may be provided under national 
laws and regulations or international law.

Article 224

Exercise of powers of enforcement

The powers of enforcement against foreign vessels under 
this Part may only be exercised by officials or by 
warships, military aircraft, or other ships or aircraft 
clearly marked and identifiable as being on government 
service and authorized to that effect.

Article 225

Duty to avoid adverse consequences in the exercise of 
the powers of enforcement

In the exercise under this Convention of their powers of 
enforcement against foreign vessels, States shall not 
endanger the safety of navigation or otherwise create 
any hazard to a vessel, or bring it to an unsafe port or 
anchorage, or expose the marine environment to an 
unreasonable risk.

Article 226

Investigation of foreign vessels

1.(a) States shall not delay a foreign vessel longer 
than is essential for purposes of the investigations 
provided for in articles 216, 218 and 220. Any physical 
inspection of a foreign vessel shall be limited to an 
examination of such certificates, records or other 
documents as the vessel is required to carry by 
generally accepted international rules and standards or 
of any similar documents which it is carrying; further 
physical inspection of the vessel may be undertaken only 
after such an examination and only when:

(i) there are clear grounds for believing that the 
condition of the vessel or its equipment does not 
correspond substantially with the particulars of those 
documents;

(ii) the contents of such documents are not sufficient 
to confirm or verify a suspected violation; or

(iii) the vessel is not carrying valid certificates and 
records.

(b) If the investigation indicates a violation of 
applicable laws and regulations or international rules 
and standards for the protection and preservation of the 
marine environment, release shall be made promptly 
subject to reasonable procedures such as bonding or 
other appropriate financial security.

(c) Without prejudice to applicable international rules 
and standards relating to the seaworthiness of vessels, 
the release of a vessel may, whenever it would present 
an unreasonable threat of damage to the marine 
environment, be refused or made conditional upon 
proceeding to the nearest appropriate repair yard. Where 
release has been refused or made conditional, the flag 
State of the vessel must be promptly notified, and may 
seek release of the vessel in accordance with Part XV.

2. States shall co-operate to develop procedures for the 
avoidance of necessary physical inspection of vessels at 
sea.

Article 227

Non-discrimination with respect to foreign vessels

In exercising their rights and performing their duties 
under this Part, States shall not discriminate in form 
or in fact against vessels of any other State.

Article 228

Suspension and restrictions on institution of 
proceedings

1. Proceedings to impose penalties in respect of any 
violation of applicable laws and regulations or 
international rules and standards relating to the 
prevention, reduction and control of pollution from 
vessels committed by a foreign vessel beyond the 
territorial sea of the State instituting proceedings 
shall be suspended upon the taking of proceedings to 
impose penalties in respect of corresponding charges by 
the flag State within six months of the date on which 
proceedings were first instituted, unless those 
proceedings relate to a case of major damage to the 
coastal State or the flag State in question has 
repeatedly disregarded its obligation to enforce 
effectively the applicable international rules and 
standards in respect of violations committed by its 
vessels. The flag State shall in due course make 
available to the State previously instituting 
proceedings a full dossier of the case and the records 
of the proceedings, whenever the flag State has 
requested the suspension of proceedings in accordance 
with this article. When proceedings instituted by the 
flag State have been brought to a conclusion, the 
suspended proceedings shall be terminated. Upon payment 
of costs incurred in respect of such proceedings, any 
bond posted or other financial security provided in 
connection with the suspended proceedings shall be 
released by the coastal State.

2. Proceedings to impose penalties on foreign vessels 
shall not be instituted after the expiry of three years 
from the date on which the violation was committed, and 
shall not be taken by any State in the event of 
proceedings having been instituted by another State 
subject to the provisions set out in paragraph 1.

3. The provisions of this article are without prejudice 
to the right of the flag State to take any measures, 
including proceedings to impose penalties, according to 
its laws irrespective of prior proceedings by another 
State.

Article 229

Institution of civil proceedings

Nothing in this Convention affects the institution of 
civil proceedings in respect of any claim for loss or 
damage resulting from pollution of the marine 
environment.

Article 230

Monetary penalties and the observance of recognized 
rights of the accused

1. Monetary penalties only may be imposed with respect 
to violations of national laws and regulations or 
applicable international rules and standards for the 
prevention, reduction and control of pollution of the 
marine environment, committed by foreign vessels beyond 
the territorial sea.

2. Monetary penalties only may be imposed with respect 
to violations of national laws and regulations or 
applicable international rules and standards for the 
prevention, reduction and control of pollution of the 
marine environment, committed by foreign vessels in the 
territorial sea, except in the case of a wilful and 
serious act of pollution in the territorial sea.

3. In the conduct of proceedings in respect of such 
violations committed by a foreign vessel which may 
result in the imposition of penalties, recognized rights 
of the accused shall be observed.

Article 231

Notification to the flag State and other States 
concerned

States shall promptly notify the flag State and any 
other State concerned of any measures taken pursuant to 
section 6 against foreign vessels and shall submit to 
the flag State all official reports concerning such 
measures. However, with respect to violations committed 
in the territorial sea, the foregoing obligations of the 
coastal State apply only to such measures as are taken 
in proceedings. The diplomatic agents or consular 
officers and where possible the maritime authority of 
the flag State, shall be immediately informed of any 
such measures taken pursuant to section 6 against 
foreign vessels.

Article 232

Liability of States arising from enforcement measures


States shall be liable for damage or loss attributable 
to them arising from measures taken pursuant to section 
6 when such measures are unlawful or exceed those 
reasonably required in the light of available 
information. States shall provide for recourse in their 
courts for actions in respect of such damage or loss.

Article 233

Safeguards with respect to straits used for 
international navigation

Nothing in sections 5, 6 and 7 affects the legal rÚgime 
of straits used for international navigation. However, 
if a foreign ship other than those referred to in 
section 10 has committed a violation of the laws and 
regulations referred to in article 42, paragraph 1 (a) 
and (b), causing or threatening major damage to the 
marine environment of the straits, the States bordering 
the straits may take appropriate enforcement measures 
and if so shall respect mutatis mutandis the provisions 
of this section.

SECTION 8. ICE-COVERED AREAS

Article 234

Ice-covered areas

Coastal States have the right to adopt and enforce non-
discriminatory laws and regulations for the prevention, 
reduction and control of marine pollution from vessels 
in ice-covered areas within the limits of the exclusive 
economic zone, where particularly severe climatic 
conditions and the presence of ice covering such areas 
for most of the year create obstructions or exceptional 
hazards to navigation, and pollution of the marine 
environment could cause major harm to or irreversible 
disturbance of the ecological balance. Such laws and 
regulations shall have due regard to navigation and the 
protection and preservation of the marine environment 
based on the best available scientific evidence.

SECTION 9. RESPONSIBILITY AND LIABILITY

Article 235

Responsibility and liability

1. States are responsible for the fulfilment of their 
international obligations concerning the protection and 
preservation of the marine environment. They shall be 
liable in accordance with international law.

2. States shall ensure that recourse is available in 
accordance with their legal systems for prompt and 
adequate compensation or other relief in respect of 
damage caused by pollution of the marine environment by 
natural or juridical persons under their jurisdiction.

3. With the objective of assuring prompt and adeguate 
compensation in respect of all damage caused by 
pollution of the marine environment, States shall co-
operate in the implementation of existing international 
law and the further development of international law 
relating to responsibility and liability for the 
assessment of and compensation for damage and the 
settlement of related disputes, as well as, where 
appropriate, development of criteria and procedures for 
payment of adequate compensation, such as compulsory 
insurance or compensation funds.

SECTION 10. SOVEREIGN IMMUNITY

Article 236

Sovereign immunity

The provisions of this Convention regarding the 
protection and preservation of the marine environment do 
not apply to any warship, naval auxiliary, other vessels 
or aircraft owned or operated by a State and used, for 
the time being, only on government non-commercial 
service. However, each State shall ensure, by the 
adoption of appropriate measures not impairing 
operations or operational capabilities of such vessels 
or aircraft owned or operated by it, that such vessels 
or aircraft act in a manner consistent, so far as is 
reasonable and practicable, with this Convention.

SECTION 11. OBLIGATIONS UNDER OTHER CONVENTIONS ON THE 
PROTECTION AND PRESERVATION OF THE MARINE ENVIRONMENT

Article 237

Obligations under other conventions on the protect

United Nations Convention on the Law of the Sea




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8. UNITED NATIONS CONVENTION ON THE LAW OF THE SEA

(Montego Bay, 10 December 1982)

The States Parties to this Convention, (...) Recognizing 
the desirability of establishing through this 
Convention, with due regard for the sovereignty of all 
States, a legal order for the seas and oceans which will 
facilitate international communication, and will promote 
the peaceful uses of the seas and oceans, the equitable 
and efficient utilization of their resources, the 
conservation of their living resources, and the study, 
protection and preservation of the marine environment, 
(...)

PART I

INTRODUCTION

Article 1

Use of terms and scope

1. For the purposes of this Convention:

(1) "Area" means the sea-bed and ocean floor and subsoil 
thereof, beyonds the limits of national jurisdiction;
(...)

(4) "pollution of the marine environment" means the 
introduction by man, directly or indirectly, of 
substances or energy into the marine environment, 
including estuaries, which results or is likely to 
result in such deleterious effects as harm to living 
resources and marine life, hazards to human health, 
hindrance to marine activities, including fishing and 
other legitimate uses of the sea, impairment of quality 
for use of sea water and reduction of amenities;

(5) (a) "dumping" means:

(i) any deliberate disposal of wastes or other matter 
from vessels, aircraft, platforms or other man-made 
structures at sea;

(ii) any deliberate disposal of vessels, aircraft, 
platforms or other man-made structures at sea;

(b) "dumping" does not include:

(i) the disposal of wastes or other matter incidental 
to, or derived from the normal operations of vessels, 
aircraft, platforms or other man-made structures at sea 
and their equipment, other than wastes or other matter 
transported by or to vessels, aircraft, platforms or 
other man-made structures at sea, operating for the 
purpose of disposal of such matter or derived from the 
treatment of such wastes or other matter on such 
vessels, aircraft, platforms or structures;

(ii) placement of matter for a purpose other than the 
mere disposal thereof, provided that such placement is 
not contrary to the aims of this Convention.
(...)

PART II

TERRITORIAL SEA AND CONTIGUOUS ZONE

SECTION 3. INNOCENT PASSAGE IN THE TERRITORIAL SEA

Article 19

Meaning of innocent passage

(...)

2. Passage of a foreign ship shall be considered to be 
prejudicial to the peace, good order or security of the 
coastal State if in the territorial seas it engages in 
any of the following activities: (...)

(h)any act of wilful and serious pollution contrary to 
this Convention; (...)

Article 21

Laws and regulations of the coastal State relating to 
innocent passage

1. The coastal State may adopt laws and regulations, in 
conformity with the provisions of this Convention and 
other rules of international law, relating to innocent 
passage through the territorial sea, in respect of all 
or any of the following:

(...)

(f) the preservation of the environment of the coastal 
State and the prevention, reduction and control of 
pollution thereof; (...)

Article 22

Sea lanes and traffic separation schemes in the 
territorial sea

1. The coastal State may, where necessary having regard 
to the safety of navigation, require foreign ships 
exercising the right of innocent passage through its 
territorial sea to use such sea lanes and traffic 
separation schemes as it may designate or prescribe for 
the regulation of the passage of ships.

2. In particular, tankers, nuclear-powered ships and 
ships carrying nuclear or other inherently dangerous or 
noxious substances or materials may be required to 
confine their passage to such sea lanes.

(...)

Article 23

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances

Foreign nuclear-powered ships and ships carrying nuclear 
or other inherently dangerous or noxious substances 
shall, when exercising the right of innocent passage 
through the territorial sea, carry documents and observe 
special precautionary measures established for such 
ships by international agreements.

(...)

PART III

STRAITS USED FOR INTERNATIONAL NAVIGATION

SECTION 2. TRANSIT PASSAGE

Article 39

Duties of ships and aircraft during transit passage

(...)

2. Ships in transit passage shall:

(...)

(b) comply with generally accepted international 
regulations, procedures and practices for the 
prevention, reduction and control of pollution from 
ships. (...)

Article 42

Laws and regulations of States bordering straits 
relating to transit passage

1. Subject to the provisions of this section, States 
bordering straits may adopt laws and regulations 
relating to transit passage through straits, in respect 
of all or any of the following:

(...)

(b) the prevention, reduction and control of pollution, 
by giving effect to applicable international regulations 
regarding the discharge of oil, oily wastes and other 
noxious substances in the straits;

(...)

Article 43

Navigational and safety aids and other improvements and 
the prevention, reduction and control of pollution

User States and States bordering a strait should by 
agreement co-operate:

(...)

(b) for the prevention, reduction and control of 
pollution from ships.

PART IV

ARCHIPELAGIC STATES

Article 54

Duties of ships and aircraft during their passage, 
research and survey activities, duties of the 
archipelagic State and laws and regulations of the 
archipelagic State relating to archipelagic sea lanes 
passage Articles 39, 40, 42 and 44 apply mutatis 
mutandis to archipelagic sea lanes passage.

PART V

EXCLUSIVE ECONOMIC ZONE

Article 56

Rights, jurisdiction and duties of the coastal State in 
the exclusive economic zone 

1. In the exclusive economic zone, the coastal State 
has:

(...)

(b) jurisdiction as provided for in the relevant 
provisions of this Convention with regard to:

(...)

(iii) the protection and preservation of the marine 
environment; (...)

Article 60

Artificial islands, installations and structures in the 
exclusive economic zone

(...)

3. Due notice must be given of the construction of such 
artificial islands, installations or structures, and 
permanent means for giving warning of their presence 
must be maintained. Any installations or structures 
which are abandoned or disused shall be removed to 
ensure safety of navigation, taking into account any 
generally accepted international standards established 
in this regard by the competent international 
organization. Such removal shall also have due regard to 
fishing, the protection of the marine environment and 
the rights and duties of other States. Appropriate 
publicity shall be given to the depth, position and 
dimensions of any installations or structures not 
entirely removed.

(...)

Article 65

Marine mammals

Nothing in this Part restricts the right of a coastal 
State or the competence of an international 
organization, as appropriate, to prohibit, limit or 
regulate the exploitation of marine mammals more 
strictly than provided for in this Part. States shall 
co-operate with a view to the conservation of marine 
mammals and in the case of cetaceans shall in particular 
work through the appropriate international organizations 
for their conservation, management and study.

PART VI

CONTINENTAL SHELF

Article 79

Submarine cables and pipelines on the continental shelf

(...)

2. Subject to its right to take reasonable measures for 
the exploration of the continental shelf, the 
exploitation of its natural resources and the 
prevention, reduction and control of pollution from 
pipelines, the coastal State may not impede the laying 
or maintenance of such cables or pipelines.

(...)

Article 80

Artificial islands, installations and structures on the 
continental shelf

Article 60 applies mutatis mutandis to artificial 
islands, installations and structures on the continental 
shelf.

PART VII

HIGH SEAS

SECTION 1. GENERAL PROVISIONS

Article 94

Duties of the flag State

(...)

7. Each State shall cause an inquiry to be held by or 
before a suitably qualified person or persons into every 
marine casualty or incident of navigation on the high 
seas involving a ship flying its flag and causing loss 
of life or serious injury to nationals of another state 
or serious damage to ships or installations of another 
State or to the marine environment. The flag State and 
the other State shall co-operate in the conduct of any 
inquiry held by that other State into any such marine 
casualty or incident of navigation.

SECTION 2. CONSERVATION AND MANAGEMENT OF THE LIVING 
RESOURCES OF THE HIGH SEAS

Article 120

Marine mammals

Article 65 also applies to the conservation and 
management of marine mammals in the high seas.


PART IX ENCLOSED OR SEMI-ENCLOSED SEAS

Article 123

Co-operation of States bordering enclosed or semi-
enclosed seas

States bordering an enclosed or semi-enclosed sea should 
co-operate with each other in the exercise of their 
rights and in the performance of their duties under this 
Convention. To this end they shall endeavour, directly 
or through an appropriate regional organization:

(...)

(b) to co-ordinate the implementation of their rights 
and duties with respect to the protection and 
preservation of the marine environment;

(...)


PART XI

THE AREA

SECTION 2. PRINCIPLES GOVERNING THE AREA

Article 142

Rights and legitimate interests of coastal States

(...)

3. Neither this Part nor any rights granted or exercised 
pursuant thereto shall affect the rights of coastal 
States to take such measures consistent with the 
relevant provisions of Part XII as may be necessary to 
prevent, mitigate or eliminate grave and imminent danger 
to their coastline, or related interests from pollution 
or threat thereof or from other hazardous occurrences 
resulting from or caused by any activities in the Area.


Article 145

Protection of the marine environment

Necessary measures shall be taken in accordance with 
this Convention with respect to activities in the Area 
to ensure effective protection for the marine 
environment from harmful effects which may arise from 
such activities. To this end the Authority shall adopt 
appropriate rules, regulations and procedures for inter 
alia:

(a) the prevention, reduction and control of pollution 
and other hazards to the marine environment, including 
the coastline, and of interference with the ecological 
balance of the marine environment, particular attention 
being paid to the need for protection from harmful 
effects of such activities as drilling, dredging, 
excavation, disposal of waste, construction and 
operation or maintenance of installations, pipelines and 
other devices related to such activities;

(b) the protection and conservation of the natural 
resources of the Area and the prevention of damage to 
the flora and fauna of the marine environment.

SECTION 4. THE AUTHORITY

SUBSECTION C. THE COUNCIL

Article 162

Powers and functions

(...)

2. In addition, the Council shall:

(...)

(w) issue emergency orders, which may include orders for 
the suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area;

(x) disapprove areas for exploitation by contractors or 
the Enterprise in cases where substantial evidence 
indicates the risk of serious harm to the marine 
environment;

(...)

Article 165

The Legal and Technical Commission

1. Members of the Legal and Technical Commission shall 
have appropriate qualifications such as those relevant 
to exploration for and exploitation and processing of 
mineral resources, oceanology, protection of the marine 
environment, or economic or legal matters relating to 
ocean mining and related fields of expertise. The 
Council shall endeavour to ensure that the membership of 
the Commission reflects all appropriate qualifications.

2. The Commission shall:

(...)

(e) make recommendations to the Council on the 
protection of the marine environment, taking into 
account the views of recognized experts in that field;

(f) formulate and submit to the Council the rules, 
regulations and procedures referred to in article 162, 
paragraph 2(o), taking into account all relevant factors 
including assessments of the environmental implications 
of activities in the Area;

(...)

(h) make recommendations to the Council regarding the 
establishment of a monitoring programme to observe, 
measure, evaluate and analyse, by recognized scientific 
methods, on a regular basis, the risks or effects of 
pollution of the marine environment resulting from 
activities in the Area, ensure that existing regulations 
are adequate and are complied with and co-ordinate the 
implementation of the monitoring programme approved by 
the Council;

(...)

(k) make recommendations to the Council to issue 
emergency orders, which may include orders for the 
suspension or adjustment of operations, to prevent 
serious harm to the marine environment arising out of 
activities in the Area. Such recommendations shall be 
taken up by the Council on a priority basis;

(l) make recommendations to the Council to disapprove 
areas for exploitation by contractors or the Enterprise 
in cases where substantial evidence indicates the risk 
of serious harm to the marine environment;

(...)

PART XII

PROTECTION AND PRESERVATION OF THE MARINE ENVIRONMENT
SECTION 1. GENERAL PROVISIONS

Article 192

General obligation

States have the obligation to protect and preserve the 
marine environment.

Article 193

Sovereign right of States to exploit their natural 
resources

States have the sovereign right to exploit their natural 
resources pursuant to their environmental policies and 
in accordance with their duty to protect and preserve 
the marine environment.

Article 194

Measures to prevent, reduce and control pollution of the 
marine environment

1. States shall take, individually or jointly as 
appropriate, all measures consistent with this 
Convention that are necessary to prevent, reduce and 
control pollution of the marine environment from any 
source, using for this purpose the best practicable 
means at their disposal and in accordance with their 
capabilities, and they shall endeavour to harmonize 
their policies in this connection.

2. States shall take all measures necessary to ensure 
that activities under their jurisdiction or control are 
so conducted as not to cause damage by pollution to 
other States and their environment, and that pollution 
arising from incidents or activities under their 
jurisdiction or control does not spread beyond the areas 
where they exercise sovereign rights in accordance with 
this Convention. 3. The measures taken pursuant to this 
Part shall deal with all sources of pollution of the 
marine environment. These measures shall include, inter 
alia, those designed to minimize to the fullest possible 
extent:

(a) the release of toxic, harmful or noxious substances, 
especially those which are persistent, from land-based 
sources, from or through the atmosphere or by dumping;

(b) pollution from vessels, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, preventing 
intentional and unintentional discharges, and regulating 
the design, construction, equipment, operation and 
manning of vessels;

(c) pollution from installations and devices used in 
exploration or exploitation of the natural resources of 
the sea-bed and subsoil, in particular measures for 
preventing accidents and dealing with emergencies, 
ensuring the safety of operations at sea, and regulating 
the design, construction, equipment, operation and 
manning of such installations or devices;

(d) pollution from other installations and devices 
operating in the marine environment, in particular 
measures for preventing accidents and dealing with 
emergencies, ensuring the safety of operations at sea, 
and regulating the design, construction, equipment, 
operation and manning of such installations or devices.

4. In taking measures to prevent, reduce or control 
pollution of the marine environment, States shall 
refrain from unjustifiable interference with activities 
carried out by other States in the exercise of their 
rights and in pursuance of their duties in conformity 
with this Convention.

5. The measures taken in accordance with this Part shall 
include those necessary to protect and preserve rare or 
fragile ecosystems as well as the habitat of depleted, 
threatened or endangered species and other forms of 
marine life.

Article 195

Duty not to transfer damage or hazards or transform one 
type of pollution into another In taking measures to 
prevent, reduce and control pollution of the marine 
environment, States shall act so as not to transfer, 
directly or indirectly, damage or hazards from one area 
to another or transform one type of pollution into 
another.

Article 196

Use of technologies or introduction of alien or new 
species

1. States shall take all measures necessary to prevent, 
reduce and control pollution of the marine environment 
resulting from the use of technologies under their 
jurisdiction or control, or the intentional or 
accidental introduction of species, alien or new, to a 
particular part of the marine environment, which may 
cause significant and harmful changes thereto.

2. This article does not affect the application of this 
Convention regarding the prevention, reduction and 
control of pollution of the marine environment.

SECTION 2. GLOBAL AND REGIONAL CO-OPERATION

Article 197

Co-operation on a global or regional basis

States shall co-operate on a global basis and, as 
appropriate, on a regional basis, directly or through 
competent international organizations, in formulating 
and elaborating international rules, standards and 
recommended practices and procedures consistent 
with this Convention, for the protection and 
preservation of the marine environment, taking into 
account characteristic regional features.

Article 198

Notification of imminent or actual damage

When a State becomes aware of cases in which the marine 
environment is in imminent danger of being damaged or 
has been damaged by pollution, it shall immediately 
notify other States it deems likely to be affected by 
such damage, as well as the competent international 
organizations.

Article 199

Contingency plans against pollution

In the cases referred to in article 198, States in the 
area affected, in accordance with their capabilities, 
and the competent international organizations shall co-
operate, to the extent possible, in eliminating the 
effects of pollution and preventing or minimizing the 
damage. To this end, States shall jointly develop and 
promote contingency plans for responding to pollution 
incidents in the marine environment.

Article 200

Studies, research programmes and exchange of information 
and data States shall co-operate, directly or through 
competent international organizations, for the purpose 
of promoting studies, undertaking programmes of 
scientific research and encouraging the exchange of 
information and data acquired about pollution of the 
marine environment. They shall endeavour to participate 
actively in regional and global programmes to acquire 
knowledge for the assessment of the nature and extent of 
pollution, exposure to it, and its pathways, risks and 
remedies.

Article 201

Scientific criteria for regulations

In the light of the information and data acquired 
pursuant to article 200, States shall co-operate, 
directly or through competent international 
organizations, in establishing appropriate scientific 
criteria for the formulation and elaboration of rules, 
standards and recommended practices and procedures for 
the prevention, reduction and control of pollution of 
the marine environment.

SECTION 3. TECHNICAL ASSISTANCE

Article 202

Scientific and technical assistance to developing States

States shall, directly or through competent 
international organizations:

(a) promote programmes of scientific, educational, 
technical and other assistance to developing States for 
the protection and preservation of the marine 
environment and the prevention, reduction and control of 
marine pollution. Such assistance shall include, inter 
alia:

(i) training of their scientific and technical 
personnel;

(ii) facilitating their participation in relevant 
international programmes;

(iii) supplying them with necessary equipment and 
facilities; 

(iv) enhancing their capacity to manufacture such 
equipment; 

(v) advice on and developing facilities for research, 
monitoring, educational and other programmes;

(b) provide appropriate assistance, especially to 
developing States, for the minimization of the effects 
of major incidents which may cause serious pollution of 
the marine environment;

(c) provide appropriate assistance, especially to 
developing States, concerning the preparation of 
environmental assessments.

Article 203

Preferential treatment for developing States

Developing States shall, for the purposes of prevention, 
reduction and control of pollution of the marine 
environment or minimization of its effects, be granted 
preference by international organizations in:

(a) the allocation of appropriate funds and technical 
assistances; and

(b) the utilization of their specialized services.

SECTION 4. MONITORING AND ENVIRONMENTAL ASSESSMENT


Article 204

Monitoring of the risks or effects of pollution

1. States shall, consistent with the rights of other 
States, endeavour, as far as practicable, directly or 
through the competent international organizations, to 
observe, measure, evaluate and analyse, by recognized 
scientific methods, the risks or effects of pollution of 
the marine environment.

2. In particular, States shall keep under surveillance 
the effects of any activities which they permit or in 
which they engage in order to determine whether these 
activities are likely to pollute the marine environment.

Article 205

Publication of reports

States shall publish reports of the results obtained 
pursuant to article 204 or provide such reports at 
appropriate intervals to the competent international 
organizations, which should make them available to all 
States.

Article 206

Assessment of potential effects of activities

When States have reasonable grounds for believing that 
planned activities under their jurisdiction or control 
may cause substantial pollution of or significant and 
harmful changes to the marine environment, they shall, 
as far as practicable, assess the potential effects of 
such activities on the marine environment and shall 
communicate reports of the results of such assessments 
in the manner provided in article 205.

SECTION 5. INTERNATIONAL RULES AND NATIONAL LEGISLATION 
TO PREVENT, REDUCE AND CONTROL POLLUTION OF THE MARINE 
ENVIRONMENT

Article 207

Pollution from land-based sources

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from land-based sources, including rivers, estuaries, 
pipelines and outfall structures, taking into account 
internationally agreed rules, standards and recommended 
practices and procedures.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control pollution of the marine 
environment from land-based sources, taking into account 
characteristic regional features, the economic capacity 
of developing States and their need for economic 
development. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

5. Laws, regulations, measures, rules, standards and 
recommended practices and procedures referred to in 
paragraphs 1, 2 and 4 shall include those designed to 
minimize, to the fullest extent possible, the release of 
toxic, harmful or noxious substances, especially those 
which are persistent, into the marine environment.

Article 208

Pollution from sea-bed activities subject to national 
jurisdiction


1. Coastal States shall adopt laws and regulations to 
prevent, reduce and control pollution of the marine 
environment arising from or in connection with sea-bed 
activities subject to their jurisdiction and from 
artificial islands, installations and structures under 
their jurisdiction, pursuant to articles 60 and 80.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall be no less 
effective than international rules, standards and 
recommended practices and procedures.

4. States shall endeavour to harmonize their policies in 
this connection at the appropriate regional level.

5. States, acting especially through competent 
international organizations or diplomatic conference, 
shall establish global and regional rules, standards and 
recommended practices and procedures to prevent, reduce 
and control pollution of the marine environment referred 
to in paragraph 1. Such rules, standards and recommended 
practices and procedures shall be re-examined from time 
to time as necessary.

Article 209

Pollution from activities in the Area

1. International rules, regulations and procedures shall 
be established in accordance with Part XI to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area. Such rules, regulations and 
procedures shall be re-examined from time to time as 
necessary.

2. Subject to the relevant provisions of this section, 
States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
from activities in the Area undertaken by vessels, 
installations, structures and other devices flying their 
flag or of their registry or operating under their 
authority, as the case may be. The requirements of such 
laws and regulations shall be no less effective than the 
international rules, regulations and procedures referred 
to in paragraph 1.

Article 210

Pollution by dumping

1. States shall adopt laws and regulations to prevent, 
reduce and control pollution of the marine environment 
by dumping.

2. States shall take other measures as may be necessary 
to prevent, reduce and control such pollution.

3. Such laws, regulations and measures shall ensure that 
dumping is not carried out without the permission of the 
competent authorities of States.

4. States, acting especially through competent 
international organizations or diplomatic conference, 
shall endeavour to establish global and regional rules, 
standards and recommended practices and procedures to 
prevent, reduce and control such pollution. Such rules, 
standards and recommended practices and procedures shall 
be re-examined from time to time as necessary.

5. Dumping within the territorial sea and the exclusive 
economic zone or onto the continental shelf shall not be 
carried out without the express prior approval of the 
coastal State, which has the right to permit, regulate 
and control such dumping after due consideration of the 
matter with other States which by reason of their 
geographical situation may be adversely affected 
thereby.

6. National laws, regulations and measures shall be no 
less effective in preventing, reducing and controlling 
such pollution than the global rules and standards.

Article 211

Pollution from vessels

1. States, acting through the competent international 
organization or general diplomatic conference, shall 
establish international rules and standards to prevent, 
reduce and control pollution of the marine environment 
from vessels and promote the adoption, in the same 
manner, wherever appropriate, of routeing systems 
designed to minimize the threat of accidents which might 
cause pollution of the marine environment, including the 
coastline, and pollution damage to the related interests 
of coastal States. Such rules and standards shall, in 
the same manner, be re-examined from time to time as 
necessary.

2. States shall adopt laws and regulations for the 
prevention, reduction and control of pollution of the 
marine environment from vessels flying their flag or of 
their registry. Such laws and regulations shall at least 
have the same effect as that of generally accepted 
international rules and standards established through 
the competent international organization or general 
diplomatic conference.

3. States which establish particular requirements for 
the prevention, reduction and control of pollution of 
the marine environment as a condition for the entry of 
foreign vessels into their ports or internal waters or 
for a call at their off-shore terminals shall give due 
publicity to such requirements and shall communicate 
them to the competent international organization. 
Whenever such requirements are established in identical 
form by two or more coastal States in an endeavour to 
harmonize policy, the communication shall indicate which 
States are participating in such co-operative 
arrangements. Every State shall require the master of a 
vessel flying its flag or of its registry, when 
navigating within the territorial sea of a State 
participating in such co-operative arrangements, to 
furnish, upon the request of that State, information as 
to whether it is proceeding to a State of the same 
region participating in such co-operative arrangements 
and, if so, to indicate whether it complies with the 
port entry requirements of that State. This article is 
without prejudice to the continued exercise by a vessel 
of its right of innocent passage or to the application 
of article 25, paragraph 2.

4. Coastal States may, in the exercise of their 
sovereignty within their territorial sea, adopt laws and 
regulations for the prevention, reduction and control of 
marine pollution from foreign vessels, including vessels 
exercising the right of innocent passage. Such laws and 
regulations shall, in accordance with Part II, section 
3, not hamper innocent passage of foreign vessels.

5. Coastal States, for the purpose of enforcement as 
provide