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The full text of this treaty was provided by the Antarctic Cooperative Research Centre (ACRC).

Summary of the "Treaty Banning Nuclear Weapon Tests in the Atmosphere, in Outer Space and Under Water" is available from the UNEP Register of International Treaties and Other Agreements in the Field of the Environment.

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Treaty Banning Nuclear Weapon Tests in the Atmosphere, in Outer
Space and Under Water (1963)

Entered into force 10 Oct 1963

The Governments of the United States of America, the United
Kingdom of Great Britain and Northern Ireland, and the Union of
Soviet Socialist Republics, hereinafter referred to as the
"Original Parties",

PROCLAIMING as their principal aim the speediest possible
achievement of an agreement on general and complete disarmament
under strict international control in accordance with the
objectives of the United Nations which would put an end to the
armaments race and eliminate the incentive to the production and
testing of all kinds of weapons, including nuclear weapons,

SEEKING to achieve the discontinuance of all test explosions of
nuclear weapons for all time,

DETERMINED to continue negotiations to this end, and desiring to
put an end to the contamination of man's environment by
radioactive substances,

Have agreed as follows:

Article I

1. Each of the Parties to this Treaty undertakes to prohibit, to
prevent, and not to carry out any nuclear weapon test explosion,
or any other nuclear explosion, at any place under its
jurisdiction or control:

(a) in the atmosphere; beyond its limits, including outer space;
or under water, including territorial waters or high seas; or

(b) in any other environment if such explosion causes radio
active debris to be present outside the territorial limits of
the State under whose jurisdiction or control such explosion is
conducted. It is understood in this connection that the
provisions of this sub paragraph are without prejudice to the
conclusion of a treaty resulting in the permanent banning of all
nuclear test explosions, including all such explosions
underground, the conclusion of which, as the Parties have stated
in the Preamble to this Treaty, they seek to achieve.

2. Each of the Parties to this Treaty undertakes furthermore to
refrain from causing, encouraging, or in any way participating
in, the carrying out of any nuclear weapon test explosion, or
any other nuclear explosion, anywhere which would take place in
any of the environments described, or have the effect referred
to, in paragraph 1 of this Article.

Article II

1. Any Party may propose amendments to this Treaty. The text of
any proposed amendment shall be submitted to the Depositary
Governments which shall circulate it to all Parties to this
Treaty. Thereafter, if requested to do so by one-third or more
of the Parties, the Depositary Governments shall convene a
conference, to which they shall invite all the Parties, to
consider such amendment.

2. Any amendment to this Treaty must be approved by a majority
of the votes of all the Parties to this Treaty, including the
votes of all of the Original Parties. The amendment shall enter
into force for all Parties upon the deposit of instruments of
ratification by a majority of all the Parties, including the
instruments of ratification of all of the Original Parties.

Article III

1. This Treaty shall be open to all States for signature. Any
State which does not sign this Treaty before its entry into
force in accordance with paragraph 3 of this Article may accede
to it at any time.

2. This Treaty shall be subject to ratification by signatory
States. Instruments of ratification and instruments of accession
shall be deposited with the Governments of the Original Parties
- the United Statesof America, the United Kingdom of Great
Britain and Northern Ireland, and the Union of Soviet Socialist
Republics - which are hereby designated the Depositary
Governments.

3. This Treaty shall enter into force after its ratification by
all the Original Parties and the deposit of their instruments of
ratification.

4. For States whose instruments of ratification or accession are
deposited subsequent to the entry into force of this Treaty, it
shall enter into force on the date of the deposit of their
instruments of ratification or accession.

5. The Depositary Governments shall promptly inform all
signatory and acceding States of the date of each signature, the
date of deposit of each instrument of ratification of and
accession to this Treaty, the date of its entry into force, and
the date of receipt of any requests for conferences or other
notices.

6. This Treaty shall be registered by the Depositary Governments
pursuant to Article 102 of the Charter of the United Nations.

Article IV

This Treaty shall be of unlimited duration.

Each Party shall in exercising its national sovereignty have the
right to withdraw from the Treaty if it decides that
extraordinary events, related to the subject matter of this
Treaty, have jeopardized the supreme interests of its country.
It shall give notice of such withdrawal to all other Parties to
the Treaty three months in advance.

Article V

This Treaty, of which the English and Russian texts are equally
authentic, shall be deposited in the archives of the Depositary
Governments. Duly certified copies of this Treaty shall be
transmitted by the Depositary Governments to the Governments of
the signatory and acceding States.

IN WITNESS WHEREOF the undersigned, duly authorized, have signed
this Treaty.

DONE in triplicate at the city of Moscow the fifth day of
August, one thousand nine hundred and sixty-three.