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

Signed by the Original Parties, the Union of Soviet Socialist Republics, the United Kingdom of Great Britain and

Northern Ireland and the United States of America at Moscow: 5 August 1963

Opened for signature at London, Moscow and Washington: 8 August 1963

Entered into force: 10 October 1963

Depositary Governments: Russian Federation,United Kingdom of Great Britain and Northern Ireland and

United States of America

State	Signature		Deposit		Deposit Type
Afghanistan	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	12 March 1964 13 March 1964 23 March 1964	London Washington Moscow	Ratification Ratification Ratification
Algeria	14 August 1963 14 August 1963 14 August 1963	London Moscow Washington
Antigua and Barbuda			16 November 1988 * 26 December 1988 * 26 January 1989	Washington Moscow London	Succession Succession Succession
Argentina	8 August 1963 9 August 1963 9 August 1963	Washington London Moscow	14 November 1986 17 November 1986 21 November 1986	London Moscow Washington	Ratification Ratification Ratification
Armenia			7 June 1994 7 June 1994	Moscow Washington	Accession Accession
Australia	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	12 November 1963 12 November 1963 12 November 1963	London Moscow Washington	Ratification Ratification Ratification
Austria	11 September 1963 12 September 1963 12 September 1963	Washington London Moscow	17 July 1964 17 July 1964 17 July 1964	London Moscow Washington	Ratification Ratification Ratification
Bahamas			11 August 1976 13 August 1976 * 30 August 1976 *	London Washington Moscow	Succession Succession Succession
Bangladesh			11 March 1985 12 March 1985 13 March 1985	Moscow Washington London	Accession Accession Accession
Belarus	8 October 1963	Moscow	16 December 1963	Moscow	Ratification
Belgium	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	1 March 1966 1 March 1966 1 March 1966	London Moscow Washington	Ratification Ratification Ratification
Benin	27 August 1963 * 3 September 1963 * 9 October 1963	Washington London Moscow	15 December 1964 23 December 1964 22 April 1965	Washington Moscow London	Ratification Ratification Ratification
Bhutan			8 June 1978	Washington	Accession
Bolivia (Plurinational State of)	8 August 1963 21 August 1963 21 August 1963	Washington London Moscow	4 August 1965 4 August 1965 25 January 1966	Moscow Washington London	Ratification Ratification Ratification
Bosnia and Herzegovina			15 August 1994 *	Washington	Succession
Botswana			15 January 1968 * 14 February 1968 4 March 1968 *	Moscow London Washington	Succession Succession Succession
Brazil	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	15 December 1964 15 January 1965 4 March 1965	Moscow Washington London	Ratification Ratification Ratification
Bulgaria	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	13 November 1963 21 November 1963 2 December 1963	Washington Moscow London	Ratification Ratification Ratification
Burkina Faso	30 August 1963	Washington
Burundi	4 October 1963	Washington
Cameroon	27 August 1963 * 6 September 1963 *	Washington London
Canada	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	28 January 1964 28 January 1964 28 January 1964	London Moscow Washington	Ratification Ratification Ratification
Cape Verde			24 October 1979	Moscow	Accession
Central African Republic			22 December 1964 24 August 1965 25 September 1965	Washington London Moscow	Accession Accession Accession
Chad	26 August 1963	Washington	1 March 1965	Washington	Ratification
Chile	8 August 1963 9 August 1963 9 August 1963	Washington London Moscow	6 October 1965	London	Ratification
China	23 August 1963 *	Moscow	18 May 1964 *	Moscow	Ratification
Colombia	16 August 1963 20 August 1963 20 August 1963	Washington London Moscow	17 October 1985 * 17 October 1985	London Washington	Ratification Ratification
Costa Rica	9 August 1963 13 August 1963 23 August 1963	London Washington Moscow	10 July 1967	Washington	Ratification
Côte d'Ivoire	5 September 1963	Washington	5 February 1965	Washington	Ratification
Croatia			8 June 1993 *	Washington	Succession
Cyprus	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	15 April 1965 21 April 1965 7 May 1965	London Moscow Washington	Ratification Ratification Ratification
Czech Republic			1 January 1993 * 1 January 1993 * 5 April 1993 *	Moscow Washington London	Succession Succession Succession
Democratic Republic of the Congo	9 August 1963 * 9 August 1963 12 August 1963	London Washington Moscow	28 October 1965	Washington	Ratification
Denmark	9 August 1963 9 August 1963 9 August 1963	London Moscow Washington	15 January 1964 15 January 1964 15 January 1964	London Moscow Washington	Ratification Ratification Ratification
Dominican Republic	16 September 1963 17 September 1963 17 September 1963	Washington London Moscow	3 June 1964 18 June 1964 22 July 1964	Moscow London Washington	Ratification Ratification Ratification
Ecuador	27 September 1963 1 October 1963 1 October 1963	Washington London Moscow	6 May 1964 8 May 1964 13 November 1964	Washington London Moscow	Ratification Ratification Ratification
Egypt	8 August 1963 8 August 1963 8 August 1963 *	London Moscow Washington	10 January 1964 10 January 1964 * 10 January 1964	London Moscow Washington	Ratification Ratification Ratification
El Salvador	21 August 1963 22 August 1963 22 August 1963	Washington London Moscow	3 December 1964 7 December 1964 9 February 1965	Washington London Moscow	Ratification Ratification Ratification
Equatorial Guinea			16 January 1989	Moscow	Accession
Ethiopia	9 August 1963 9 August 1963 9 August 1963	London Moscow Washington
Fiji			14 July 1972 * 18 July 1972 * 14 August 1972	Moscow Washington London	Succession Succession Succession
Finland	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	9 January 1964 9 January 1964 9 January 1964	London Moscow Washington	Ratification Ratification Ratification
Gabon	10 September 1963	Washington	20 February 1964 4 March 1964 * 9 March 1964	Washington London Moscow	Ratification Ratification Ratification
Gambia			27 April 1965 * 27 April 1965 * 6 May 1965	Moscow Washington London	Succession Succession Succession
Germany	19 August 1963 19 August 1963 * 19 August 1963	London Moscow Washington	1 December 1964 * 1 December 1964 *	London Washington	Ratification Ratification
Ghana	9 August 1963 4 September 1963 4 September 1963	Washington London Moscow	27 November 1963 9 January 1964 31 May 1965	London Washington Moscow	Ratification Ratification Ratification
Greece	8 August 1963 9 August 1963 9 August 1963	Washington London Moscow	18 December 1963 18 December 1963 18 December 1963	London Moscow Washington	Ratification Ratification Ratification
Guatemala	23 September 1963 *	Washington	6 January 1964 *	Washington	Ratification
Guinea-Bissau			20 August 1976	Moscow	Accession
Haiti	9 October 1963	Washington
Honduras	8 August 1963 15 August 1963 15 August 1963	Washington London Moscow	2 October 1964 2 December 1964	Washington London	Ratification Ratification
Hungary	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	21 October 1963 21 October 1963 22 October 1963	London Moscow Washington	Ratification Ratification Ratification
Iceland	12 August 1963 12 August 1963 12 August 1963	London Moscow Washington	29 April 1964 29 April 1964 29 April 1964	London Moscow Washington	Ratification Ratification Ratification
India	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	10 October 1963 14 October 1963 18 October 1963	London Moscow Washington	Ratification Ratification Ratification
Indonesia	23 August 1963 23 August 1963 23 August 1963	London Moscow Washington	20 January 1964 27 January 1964 8 May 1964	Moscow Washington London	Ratification Ratification Ratification
Iran (Islamic Republic of)	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	5 May 1964 5 May 1964 5 May 1964	London Moscow Washington	Ratification Ratification Ratification
Iraq	13 August 1963 13 August 1963 13 August 1963	London Moscow Washington	30 November 1964 1 December 1964 3 December 1964	London Washington Moscow	Ratification Ratification Ratification
Ireland	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	18 December 1963 18 December 1963 20 December 1963	London Washington Moscow	Ratification Ratification Ratification
Israel	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	15 January 1964 15 January 1964 28 January 1964	London Washington Moscow	Ratification Ratification Ratification
Italy	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	10 December 1964 10 December 1964 10 December 1964	London Moscow Washington	Ratification Ratification Ratification
Jamaica	13 August 1963 13 August 1963 13 August 1963	London Moscow Washington	11 November 1991 22 November 1991	Moscow Washington	Ratification Ratification
Japan	14 August 1963 14 August 1963 14 August 1963	London Moscow Washington	15 June 1964 15 June 1964 15 June 1964	London Moscow Washington	Ratification Ratification Ratification
Jordan	12 August 1963 12 August 1963 12 August 1963	London Moscow Washington	29 May 1964 7 July 1964 10 July 1964	London Moscow Washington	Ratification Ratification Ratification
Kenya			10 June 1965 11 June 1965 30 June 1965	London Washington Moscow	Accession Accession Accession
Kuwait	20 August 1963 20 August 1963 20 August 1963	London Moscow Washington	20 May 1965 * 21 May 1965 17 June 1965 *	Washington London Moscow	Ratification Ratification Ratification
Lao People's Democratic Republic	12 August 1963 12 August 1963 12 August 1963	London Moscow Washington	10 February 1965 12 February 1965 7 April 1965	London Washington Moscow	Ratification Ratification Ratification
Lebanon	12 August 1963 13 August 1963 13 August 1963	Washington London Moscow	14 May 1965 20 May 1965 4 June 1965	Washington London Moscow	Ratification Ratification Ratification
Liberia	8 August 1963 16 August 1963 16 August 1963	Washington London Moscow	19 May 1964 22 May 1964 16 June 1964	Washington London Moscow	Ratification Ratification Ratification
Libya	9 August 1963 9 August 1963 16 August 1963	London Moscow Washington	15 July 1968	London	Ratification
Luxembourg	13 August 1963 3 September 1963 13 September 1963	London Washington Moscow	10 February 1965 10 February 1965 10 February 1965	London Moscow Washington	Ratification Ratification Ratification
Madagascar	23 September 1963	Washington	15 March 1965	Washington	Ratification
Malawi			26 November 1964 * 29 November 1964 * 7 January 1965	Moscow Washington London	Succession Succession Succession
Malaysia	8 August 1963 12 August 1963 21 August 1963	Washington London Moscow	15 July 1964 16 July 1964 16 July 1964	Moscow London Washington	Ratification Ratification Ratification
Mali	23 August 1963 23 August 1963 23 August 1963	London Moscow Washington
Malta			25 November 1964 * 25 November 1964 * 1 December 1964	Moscow Washington London	Succession Succession Succession
Mauritania	13 September 1963 17 September 1963 17 September 1963	Washington London Moscow	6 April 1964 15 April 1964 28 April 1964	Washington London Moscow	Ratification Ratification Ratification
Mauritius			30 April 1969 * 30 April 1969 * 12 May 1969	Moscow Washington London	Succession Succession Succession
Mexico	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	27 December 1963 27 December 1963 27 December 1963	London Moscow Washington	Ratification Ratification Ratification
Mongolia	8 August 1963 8 August 1963	London Moscow	1 November 1963 7 November 1963	Moscow London	Ratification Ratification
Montenegro			3 June 2006 * 12 December 2006 *	Moscow London	Succession Succession
Morocco	27 August 1963 30 August 1963 30 August 1963	Washington London Moscow	1 February 1966 18 February 1966 21 February 1966	London Moscow Washington	Ratification Ratification Ratification
Myanmar	14 August 1963 14 August 1963 14 August 1963	London Moscow Washington	15 November 1963 15 November 1963 15 November 1963	London Moscow Washington	Ratification Ratification Ratification
Nepal	26 August 1963 26 August 1963 30 August 1963	London Moscow Washington	7 October 1964 7 October 1964 7 October 1964	London Moscow Washington	Ratification Ratification Ratification
Netherlands	9 August 1963 9 August 1963 9 August 1963	London Moscow Washington	14 September 1964 14 September 1964 * 14 September 1964 *	London Moscow Washington	Ratification Ratification Ratification
New Zealand	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	10 October 1963 10 October 1963 16 October 1963	London Washington Moscow	Ratification Ratification Ratification
Nicaragua	13 August 1963 13 August 1963 13 August 1963	London Moscow Washington	26 January 1965 26 February 1965 26 February 1965	London Moscow Washington	Ratification Ratification Ratification
Niger	24 September 1963 24 September 1963 24 September 1963	London Moscow Washington	3 July 1964 6 July 1964 9 July 1964	Moscow London Washington	Ratification Ratification Ratification
Nigeria	2 September 1963 4 September 1963 2 September 1964	London Washington Moscow	17 February 1967 25 February 1967 28 February 1967	London Moscow Washington	Ratification Ratification Ratification
Norway	9 August 1963 9 August 1963 9 August 1963	London Moscow Washington	21 November 1963 21 November 1963 21 November 1963	London Moscow Washington	Ratification Ratification Ratification
Pakistan	14 August 1963 14 August 1963 14 August 1963	London Moscow Washington	3 March 1988	London	Ratification
Panama	20 September 1963	Washington	24 February 1966	Washington	Ratification
Papua New Guinea			27 October 1980 13 November 1980 * 16 March 1981 *	London Moscow Washington	Succession Succession Succession
Paraguay	15 August 1963 15 August 1963 15 August 1963	London Moscow Washington
Peru	23 August 1963 23 August 1963 23 August 1963	London Moscow Washington	20 July 1964 4 August 1964 21 August 1964	Washington London Moscow	Ratification Ratification Ratification
Philippines	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	10 November 1965 15 November 1965 * 8 February 1966	London Washington Moscow	Ratification Ratification Ratification
Poland	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	14 October 1963 14 October 1963 14 October 1963	London Moscow Washington	Ratification Ratification Ratification
Portugal	9 October 1963 9 October 1963	London Washington
Republic of Korea	30 August 1963 30 August 1963	London Washington	24 July 1964 * 24 July 1964 *	London Washington	Ratification Ratification
Romania	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	12 December 1963 12 December 1963 12 December 1963	London Moscow Washington	Ratification Ratification Ratification
Russian Federation	5 August 1963 5 August 1963 5 August 1963	London Moscow Washington	10 October 1963 10 October 1963 10 October 1963 *	London Moscow Washington	Ratification Ratification Ratification
Rwanda	19 September 1963	Washington	22 October 1963 16 December 1963 27 December 1963	London Moscow Washington	Ratification Ratification Ratification
Samoa	5 September 1963 5 September 1963 6 September 1963	London Moscow Washington	15 January 1965 19 January 1965 8 February 1965	Washington London Moscow	Ratification Ratification Ratification
San Marino	17 September 1963 20 September 1963 20 September 1963	Washington London Moscow	3 July 1964 9 July 1964 27 November 1964	London Washington Moscow	Ratification Ratification Ratification
Senegal	20 September 1963 23 September 1963 23 September 1963	Washington London Moscow	6 May 1964 12 May 1964 2 June 1964	London Moscow Washington	Ratification Ratification Ratification
Serbia	8 August 1963	Moscow	31 January 1964 * 3 June 2006 *	Moscow London	Ratification Succession
Seychelles			12 March 1985 14 March 1985 8 April 1985	London Moscow Washington	Accession Accession Accession
Sierra Leone	4 September 1963 4 September 1963 11 September 1963	London Moscow Washington	21 February 1964 4 March 1964 29 April 1964	London Washington Moscow	Ratification Ratification Ratification
Singapore			12 July 1968 12 July 1968 * 23 July 1968	Moscow Washington London	Succession Succession Succession
Slovakia			1 January 1993 * 1 January 1993 * 17 May 1993 *	Moscow Washington London	Succession Succession Succession
Slovenia			7 April 1992 20 August 1992 *	London Washington	Succession Succession
Somalia	19 August 1963 19 August 1963	Moscow Washington
South Africa			10 October 1963 10 October 1963 22 November 1963	London Washington Moscow	Accession Accession Accession
Spain	13 August 1963 14 August 1963	Washington London	17 December 1964 17 December 1964	London Washington	Ratification Ratification
Sri Lanka	22 August 1963 22 August 1963 23 August 1963	London Washington Moscow	5 February 1964 12 February 1964 13 February 1964	Washington Moscow London	Ratification Ratification Ratification
Sudan	9 August 1963 9 August 1963 9 August 1963	London Moscow Washington	4 March 1966 4 March 1966 28 March 1966	London Washington Moscow	Ratification Ratification Ratification
Suriname			6 January 1993 9 April 1993	London Washington	Accession Accession
Swaziland			29 May 1969 29 May 1969 3 June 1969	London Washington Moscow	Accession Accession Accession
Sweden	12 August 1963 12 August 1963 12 August 1963	London Moscow Washington	9 December 1963 9 December 1963 9 December 1963	London Moscow Washington	Ratification Ratification Ratification
Switzerland	26 August 1963 26 August 1963 26 August 1963	London Moscow Washington	16 January 1964 16 January 1964 16 January 1964	London Moscow Washington	Ratification Ratification Ratification
Syrian Arab Republic	13 August 1963 13 August 1963 13 August 1963	London Moscow Washington	1 June 1964 1 June 1964 1 June 1964	London Moscow Washington	Ratification Ratification Ratification
Thailand	8 August 1963 8 August 1963 8 August 1963	London Moscow Washington	15 November 1963 21 November 1963 29 November 1963	London Moscow Washington	Ratification Ratification Ratification
Togo	18 September 1963	Washington	7 December 1964	Washington	Ratification
Tonga			22 June 1971 * 7 July 1971 7 July 1971 *	Moscow London Washington	Succession Succession Succession
Trinidad and Tobago	12 August 1963 12 August 1963 12 August 1963	London Moscow Washington	14 July 1964 16 July 1964 6 August 1964	Washington London Moscow	Ratification Ratification Ratification
Tunisia	8 August 1963 12 August 1963 12 August 1963	Washington London Moscow	26 May 1965 26 May 1965 3 June 1965	London Moscow Washington	Ratification Ratification Ratification
Turkey	9 August 1963 9 August 1963 9 August 1963	London Moscow Washington	8 July 1965 8 July 1965 8 July 1965	London Moscow Washington	Ratification Ratification Ratification
Uganda	29 August 1963 29 August 1963	London Washington	24 March 1964 2 April 1964	London Washington	Ratification Ratification
Ukraine	8 October 1963	Moscow	30 December 1963	Moscow	Ratification
United Kingdom of Great Britain and Northern Ireland	5 August 1963 5 August 1963 5 August 1963	London Moscow Washington	10 October 1963 * 10 October 1963 10 October 1963	London Moscow Washington	Ratification Ratification Ratification
United Republic of Tanzania	16 September 1963 18 September 1963 20 September 1963	London Washington Moscow	6 February 1964	London	Ratification
United States of America	5 August 1963 5 August 1963 5 August 1963	London Moscow Washington	10 October 1963 10 October 1963 10 October 1963	London Moscow Washington	Ratification Ratification Ratification
Uruguay	12 August 1963 27 September 1963 27 September 1963	Washington London Moscow	25 February 1969	London	Ratification
Venezuela (Bolivarian Republic of)	16 August 1963 20 August 1963 20 August 1963	Washington London Moscow	22 February 1965 3 March 1965 29 March 1965	Moscow London Washington	Ratification Ratification Ratification
Yemen			1 June 1979 *	Moscow	Accession
Zambia			11 January 1965 * 11 January 1965 * 8 February 1965	Moscow Washington London	Succession Succession Succession

* A note, statement, declaration, or reservation, is attached to the signature or depository action. Click on the action date to view the details.

Glossary of treaty-related terms

Number of Signatory States:	105
Number of States Parties:	126

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