United States of America

1925 Geneva Protocol
Signature (Paris)
17 June 1925
Deposit of instruments of ratification (Paris)
10 April 1975
Antarctic Treaty
Signature (Washington)
01 December 1959
Deposit of instruments of ratification (Washington)
18 August 1960
Arms Trade Treaty
Signature (UN)
25 September 2013
Biological Weapons Convention
Signature (London)
10 April 1972
Signature (Moscow)
10 April 1972
Signature (Washington)
10 April 1972
Deposit of instruments of ratification (London)
26 March 1975
Deposit of instruments of ratification (Moscow)
26 March 1975
Deposit of instruments of ratification (Washington)
26 March 1975
Chemical Weapons Convention
Signature (UN)
13 January 1993
Deposit of instruments of ratification (UN)
25 April 1997
Comprehensive Nuclear-Test-Ban Treaty
Signature (UN)
24 September 1996
Convention on Certain Conventional Weapons
Signature (UN)
08 April 1982
Deposit of instruments of ratification (UN)
24 March 1995
24 March 1995
24 March 1995
24 May 1999
Content to be bound to Protocol IV on Blinding Laser Weapons (UN)
21 January 2009
Deposit of instruments of ratification Amendment to the Convention on Certain Conventional Weapons (UN)
21 January 2009
Content to be bound to Protocol V on Explosive Remnants of War (UN)
21 January 2009
21 January 2009
Convention on Environmental Modification Techniques (ENMOD)
Signature (UN)
18 May 1977
Deposit of instruments of ratification (UN)
17 January 1980
Inter-American Convention on Firearms
Signature (OAS)
14 November 1997
Inter-American Convention on Transparency
Signature (OAS)
07 June 1999
International Convention for the Suppression of Acts of Nuclear Terrorism
Signature (UN)
14 September 2005
Deposit of instruments of ratification (UN)
30 September 2015
Outer Space Treaty
Signature (London)
27 January 1967
Signature (Moscow)
27 January 1967
Signature (Washington)
27 January 1967
Deposit of instruments of ratification (London)
10 October 1967
Deposit of instruments of ratification (Moscow)
10 October 1967
Deposit of instruments of ratification (Washington)
10 October 1967
Partial Test Ban Treaty
Signature (London)
05 August 1963
Signature (Moscow)
05 August 1963
Signature (Washington)
05 August 1963
Deposit of instruments of ratification (London)
10 October 1963
Deposit of instruments of ratification (Moscow)
10 October 1963
Deposit of instruments of ratification (Washington)
10 October 1963
Pelindaba Treaty
Signature (African Union)
11 April 1996
Signature (African Union)
11 April 1996
Sea-bed Treaty
Signature (London)
11 February 1971
Signature (Moscow)
11 February 1971
Signature (Washington)
11 February 1971
Deposit of instruments of ratification (London)
18 May 1972
Deposit of instruments of ratification (Moscow)
18 May 1972
Deposit of instruments of ratification (Washington)
18 May 1972
South Pacific Nuclear Free Zone Treaty
Signature (PIFS)
25 March 1996
Signature (PIFS)
25 March 1996
Signature (PIFS)
25 March 1996
Treaty of Tlatelolco
Signature (Mexico City)
01 April 1968
Deposit of instruments of ratification Additional Protocol II to the Treaty of Tlatelolco (Mexico City)
12 May 1971
Signature (Mexico City)
26 May 1977
Deposit of instruments of ratification Additional Protocol I to the Treaty of Tlatelolco (Mexico City)
23 November 1981
Treaty on a Nuclear-Weapon-Free Zone in Central Asia (CANWFZ)
Signature (Bishkek)
06 May 2014
Treaty on Conventional Armed Forces in Europe (CFE)
Signature (The Hague)
19 November 1990
Deposit of instruments of ratification (The Hague)
29 January 1992
Signature (The Hague)
19 November 1999
Treaty on the Non-Proliferation of Nuclear Weapons (NPT)
Signature (London)
01 July 1968
Signature (Moscow)
01 July 1968
Signature (Washington)
01 July 1968
Deposit of instruments of ratification (London)
05 March 1970
Deposit of instruments of ratification (Moscow)
05 March 1970
Deposit of instruments of ratification (Washington)
05 March 1970
For treaties where the Secretary-General of the United Nations is not the depository, the records in this database rely on information provided to the United Nations by the depository States of those treaties. Some resources listed and/or hyperlinked on this page may be from individuals, organisations and entities other than the United Nations and are provided for information purposes only. The hyperlinking of outside resources is not an endorsement by the United Nations of the views expressed therein nor does the United Nations have control over the content or accuracy of information provided. No editorial comment is implied by the omission of a resource or website.