Seabed Arms Control Treaty

Seabed Arms Control Treaty
Treaty on the Prohibition of the Emplacement of Nuclear Weapons and Other Weapons of Mass Destruction on the Sea-Bed and the Ocean Floor and in the Subsoil Thereof
Ratifications and signatories of the treaty
  Parties
  Signatories
  Non-parties
Signed 11 February 1971
Effective 18 May 1972
Condition 22 ratifications (including depositary states)
Signatories 84
Parties 94 (as of May 2014)
Depositary Governments of the United States of America, the United Kingdom of Great Britain and Northern Ireland, and the Union of Soviet Socialist Republics
Languages English, French, Russian, Spanish and Chinese
Full text
Seabed Arms Control Treaty at Wikisource

The Seabed Arms Control Treaty (or Seabed Treaty, formally the Treaty on the Prohibition of the Emplacement of Nuclear Weapons and Other Weapons of Mass Destruction on the Sea-Bed and the Ocean Floor and in the Subsoil thereof) is a multilateral agreement between the United States, Soviet Union (now Russia), United Kingdom, and 91 other countries banning the emplacement of nuclear weapons or "weapons of mass destruction" on the ocean floor beyond a 12-mile (22.2 km) coastal zone. It allows signatories to observe all seabed "activities" of any other signatory beyond the 12-mile zone to ensure compliance.

Like the Antarctic Treaty, the Outer Space Treaty, and the Nuclear-Weapon-Free Zone treaties, the Seabed Arms Control Treaty sought to prevent the introduction of international conflict and nuclear weapons into an area hitherto free of them. Reaching agreement on the seabed, however, involved problems that were not met in framing the other two agreements.

History

In the 1960s, advances in the technology of oceanography and greatly increased interest in the vast and virtually untapped resources of the ocean floor led to concern that the absence of clearly established rules of law might lead to strife. There were concurrent fears that nations might use the seabed as a new environment for military installations, including those capable of launching nuclear weapons.

In keeping with a proposal submitted to the U.N. Secretary General by Ambassador Pardo of Malta in August 1967, the U.N. General Assembly, on 18 December 1967, established an ad hoc committee to study ways of reserving the seabed for peaceful purposes, with the objective of ensuring "that the exploration and use of the seabed and the ocean floor should be conducted in accordance with the principles and purposes of the Charter of the United Nations, in the interests of maintaining international peace and security and for the benefit of all mankind." The committee was given permanent status the following year. At the same time, seabed-related military and arms control issues were referred to the Eighteen Nation Committee on Disarmament (ENDC) and its successor, the Conference of the Committee on Disarmament (CCD). In a message of 18 March 1969, President Nixon said the American delegation to the ENDC should seek discussion of the factors necessary for an international agreement prohibiting the emplacement of weapons of mass destruction on the seabed and ocean floor and pointed out that an agreement of this kind would, like the Antarctic and Outer Space treaties, "prevent an arms race before it has a chance to start."

Status

List of parties

The Seabed Arms Control Treaty was opened for signature in Washington, London, and Moscow on 11 February 1971. It entered into force 18 May 1972, when the United States, the United Kingdom, the Soviet Union, and more than 22 nations had deposited instruments of ratification. As of October 2018, 94 current states are parties to the treaty, while another 21 have signed the treaty but have not completed ratification.

Multiple dates indicate the different days in which states submitted their signature or deposition, which varied by location. This location is noted by: (L) for London, (M) for Moscow, and (W) for Washington.

State Signed Deposited Method
Afghanistan Feb 11, 1971 (L, M, W) Apr 22, 1971 (M)
Apr 23, 1971 (L)
May 21, 1971 (W)
Ratification
Algeria Jan 27, 1992 (W) Accession
Antigua and Barbuda Nov 16, 1988 (W)
Dec 26, 1988 (M)
Jan 26, 1989 (L)
Succession from United Kingdom
Argentina Sep 3, 1971 (L, M, W) Mar 21, 1983 (L, M, W) Ratification
Australia Feb 11, 1971 (L, M, W) Jan 23, 1973 (L, M, W) Ratification
Austria Feb 11, 1971 (L, M, W) Aug 10, 1972 (L, M, W) Ratification
Bahamas Jun 7, 1989 (W) Accession
Belarus Mar 3, 1971 (M) Sep 14, 1971 (M) Ratified as the Byelorussian SSR
Belgium Feb 11, 1971 (L, M, W) Nov 20, 1972 (L, M, W) Ratification
Benin Mar 18, 1971 (W) Jun 19, 1986 (M)
Jul 2, 1986 (L)
Jul 7, 1986 (W)
Ratification
Bosnia and Herzegovina Aug 15, 1994 (W) Succession from SFR Yugoslavia
Botswana Feb 11, 1971 (W) Nov 10, 1972 (W) Ratification
Brazil Sep 3, 1971 (L, M, W) May 10, 1988 (L, W)
Aug 4, 1988 (M)
Ratification
Bulgaria Feb 11, 1971 (L, M, W) Apr 16, 1971 (M)
May 7, 1971 (W)
May 26, 1971 (L)
Ratification
Canada Feb 11, 1971 (L, M, W) May 17, 1972 (L, M, W) Ratification
Cape Verde Oct 24, 1979 (M) Accession
Central African Republic Feb 11, 1971 (W) Jul 9, 1981 (W) Ratification
China Feb 28, 1991 (L, M, W) Accession
Congo Oct 23, 1978 (W) Accession
Côte d'Ivoire Jan 14, 1972 (M, W) Accession
Cuba Jun 3, 1977 (M) Accession
Cyprus Feb 11, 1971 (L, M, W) Nov 17, 1971 (L, M)
Dec 30, 1971 (W)
Ratification
Czech Republic Jan 1, 1993 (W)
Apr 5, 1993 (L)
Apr 9, 1993 (M)
Succession from Czechoslovakia
Denmark Feb 11, 1971 (L, M, W) Jun 15, 1971 (L, M, W) Ratification
Dominican Republic Feb 11, 1971 (W) Feb 11, 1972 (W) Ratification
Ethiopia Feb 11, 1971 (L, M, W) Jul 12, 1977 (L)
Jul 14, 1977 (M, W)
Ratification
Finland Feb 11, 1971 (L, M, W) Jun 8, 1971 (L, M, W) Ratification
Germany Jun 8, 1971 (L, M, W) Nov 18, 1975 (L, W) Ratification
Ghana Feb 11, 1971 (L, M, W) Aug 9, 1972 (W) Ratification
Greece Feb 11, 1971 (M)
Feb 12, 1971 (W)
May 28, 1985 (L, M, W) Ratification
Guatemala Feb 11, 1971 (W) Apr 1, 1996 (W) Ratification
Guinea-Bissau Aug 20, 1976 (M) Accession
Hungary Feb 11, 1971 (L, M, W) Aug 13, 1971 (L, M, W) Ratification
Iceland Feb 11, 1971 (L, M, W) May 30, 1972 (L, M, W) Ratification
India Jul 20, 1973 (L, M, W) Accession
Iran Feb 11, 1971 (L, M, W) Aug 26, 1971 (L, W)
Sep 6, 1971 (M)
Ratification
Iraq Feb 22, 1971 (M) Sep 13, 1972 (M) Ratification
Ireland Feb 11, 1971 (L, W) Aug 19, 1971 (L, W) Ratification
Italy Feb 11, 1971 (L, M, W) Sep 3, 1974 (L, M, W) Ratification
Jamaica Oct 11, 1971 (L, W)
Oct 14, 1971 (M)
Jul 30, 1986 (L, M, W) Ratification
Japan Feb 11, 1971 (L, M, W) Jun 21, 1971 (L, M, W) Ratification
Jordan Feb 11, 1971 (L, M, W) Aug 17, 1971 (W)
Aug 30, 1971 (M)
Nov 1, 1971 (L)
Ratification
South Korea Feb 11, 1971 (L, W) Jun 25, 1987 (L, W) Ratification
Laos Feb 11, 1971 (L, W)
Feb 15, 1971 (M)
Oct 19, 1971 (L)
Oct 22, 1971 (M)
Nov 3, 1971 (W)
Ratification
Latvia Jun 24, 1992 (L)
Aug 3, 1992 (W)
Aug 21, 1992 (M)
Accession
Lesotho Sep 8, 1971 (W) Apr 3, 1973 (W) Ratification
Libya Jul 6, 1990 (M) Accession
Liechtenstein May 30, 1991 (L, W)
May 31, 1991 (M)
Accession
Luxembourg Feb 11, 1971 (L, M, W) Nov 11, 1982 (L, M, W) Ratification
Malaysia May 20, 1971 (L, M, W) Jun 21, 1972 (L, M, W) Ratification
Malta Feb 11, 1971 (L, W) May 4, 1971 (W) Ratification
Mauritius Feb 11, 1971 (W) Apr 23, 1971 (W)
May 3, 1971 (L)
May 18, 1971 (M)
Ratification
Mexico Mar 23, 1984 (L, M, W) Accession
Mongolia Feb 11, 1971 (L, M) Oct 8, 1971 (M)
Nov 15, 1981 (L)
Ratification
Montenegro Jun 3, 2006 (M)
Dec 12, 2006 (L)
Succession from FR Yugoslavia
Morocco Feb 11, 1971 (M, W)
Feb 18, 1971 (L)
Jul 26, 1971 (L)
Aug 5, 1971 (W)
Jan 18, 1972 (M)
Ratification
Nepal Feb 11, 1971 (M, W)
Feb 24, 1971 (L)
Jul 6, 1971 (L)
Jul 29, 1971 (M)
Aug 9, 1971 (W)
Ratification
Netherlands Feb 11, 1971 (L, M, W) Jan 14, 1976 (L, M, W) Ratification
New Zealand Feb 11, 1971 (L, M, W) Feb 24, 1972 (L, M, W) Ratification
Nicaragua Feb 11, 1971 (W) Feb 7, 1973 (W) Ratification
Niger Feb 11, 1971 (W) Aug 9, 1971 (W) Ratification
Norway Feb 11, 1971 (L, M, W) Jun 28, 1971 (L, M)
Jun 29, 1971 (W)
Ratification
Panama Feb 11, 1971 (W) Mar 20, 1974 (W) Ratification
Philippines Nov 5, 1993 (L) Accession
Poland Feb 11, 1971 (L, M, W) Nov 15, 1971 (L, M, W) Ratification
Portugal Jun 24, 1975 (L, M, W) Accession
Qatar Nov 12, 1974 (L) Accession
Romania Feb 11, 1971 (L, M, W) Jul 10, 1972 (L, M, W) Ratification
Russia Feb 11, 1971 (L, M, W) May 18, 1972 (L, M, W) Ratified as the Soviet Union
Rwanda Feb 11, 1971 (W) May 20, 1975 (L, M, W) Ratification
Saint Kitts and Nevis May 18, 1972 (W) Accession
Saint Vincent and the Grenadines May 13, 1999 (L) Succession from United Kingdom
Sao Tome and Principe Aug 24, 1979 (M) Accession
Saudi Arabia Jan 7, 1972 (W) Jun 23, 1972 (W) Ratification
Serbia Jun 3, 2006 (L, M) Succession from FR Yugoslavia
Seychelles Mar 12, 1985 (L)
Mar 14, 1985 (M)
Apr 8, 1985 (W)
Accession
Singapore May 5, 1971 (L, M, W) Sep 10, 1976 (L, M, W) Ratification
Slovakia Jan 1, 1993 (W)
May 17, 1993 (L)
Jun 25, 1993 (M)
Succession from Czechoslovakia
Slovenia Apr 7, 1992 (L)
Aug 20, 1992 (W)
Succession from SFR Yugoslavia
Solomon Islands Jun 17, 1981 (L) Succession from United Kingdom
South Africa Feb 11, 1971 (W) Nov 14, 1973 (W)
Nov 26, 1973 (L)
Nov 30, 1973 (M)
Ratification
Spain Jul 15, 1987 (L, M, W) Accession
Swaziland Feb 11, 1971 (W) Aug 9, 1971 (W) Ratification
Sweden Feb 11, 1971 (L, M, W) Apr 28, 1972 (L, M, W) Ratification
Switzerland Feb 11, 1971 (L, M, W) May 4, 1976 (L, M, W) Ratification
Togo Apr 2, 1971 (W) Jun 28, 1971 (W) Ratification
Tunisia Feb 11, 1971 (L, M, W) Oct 22, 1971 (M)
Oct 28, 1971 (L)
Oct 29, 1971 (W)
Ratification
Turkey Feb 25, 1971 (L, M, W) Oct 19, 1972 (W)
Oct 25, 1972 (L)
Oct 30, 1972 (M)
Ratification
Ukraine Mar 3, 1971 (M) Sep 3, 1971 (M) Ratified as the Ukrainian SSR
United Kingdom Feb 11, 1971 (L, M, W) May 18, 1972 (L, M, W) Ratification
United States Feb 11, 1971 (L, M, W) May 18, 1972 (L, M, W) Ratification
Vietnam Jun 20, 1980 (M) Accession as the Socialist Republic of Vietnam
Yemen Feb 23, 1971 (M) Jun 1, 1979 (M) Ratification
Zambia Oct 9, 1972 (L)
Nov 1, 1972 (W)
Nov 2, 1972 (M)
Accession
Notes
  1. Montenegro's effective date of succession was 3 June 2006.
  2. Signed by the Republic of Vietnam on 11 February 1971, but following the victory by the Democratic Republic of Vietnam in the Vietnam War, the reunified Socialist Republic of Vietnam renounced all treaty actions performed by the Republic of Vietnam.

State with limited recognition, abiding by treaty

The Republic of China (Taiwan), which is currently only recognized by 12 UN member states, deposited their instruments of ratification of the treaty prior to the United States' decision to switch their recognition of the sole legitimate government of China from the Republic of China (ROC) to the People's Republic of China (PRC) in 1971. When the PRC subsequently ratified the treaty, they described the ROC's ratification as "illegal". The ROC has committed itself to continue to adhere to the requirements of the treaty, and the United States has declared that they still consider them to be "bound by its obligations".

State Signed Deposited Method
Republic of China Feb 11, 1971 Feb 22, 1972 Ratification

States that have signed but not ratified

State Signed
Bolivia Feb 11, 1971 (L, M, W)
Burundi Feb 11, 1971 (M, W)
Cambodia Feb 11, 1971 (W)
Cameroon Nov 11, 1971 (M)
Colombia Feb 11, 1971 (W)
Costa Rica Feb 11, 1971 (W)
Equatorial Guinea Jun 4, 1971 (W)
Gambia May 18, 1971 (L)
May 21, 1971 (M)
Oct 29, 1971 (W)
Guinea Feb 11, 1971 (M, W)
Honduras Feb 11, 1971 (W)
Lebanon Feb 11, 1971 (L, M, W)
Liberia Feb 11, 1971 (W)
Madagascar Sep 14, 1971 (W)
Mali Feb 11, 1971 (W)
Feb 15, 1971 (M)
Myanmar Feb 11, 1971 (L, M, W)
Paraguay Feb 23, 1971 (W)
Senegal Mar 17, 1971 (W)
Sierra Leone Feb 11, 1971 (L)
Feb 12, 1971 (M)
Feb 24, 1971 (W)
Sudan Feb 11, 1971 (L)
Feb 12, 1971 (M)
Tanzania Feb 11, 1971 (W)
Uruguay Feb 11, 1971 (W)

Non-signatory states

The remaining UN member states and UN observer states, which have not signed the treaty, are:

See also