List of parties to the Vienna Convention on the Law of Treaties

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  Parties
  Signatories
  Non-parties

The Vienna Convention on the Law of Treaties (VCLT) is a treaty concerning the international law on treaties between states. It was adopted on 22 May 1969[1] and opened for signature on 23 May 1969.[2] The Convention entered into force on 27 January 1980.[2]

As of January 2018, 116 state parties have ratified the convention, and a further 15 states have signed but have not ratified the convention.[3] In addition, the Republic of China (Taiwan), which is currently only recognized by 16 UN member states, signed the Convention in 1970 prior to the United Nations General Assembly's vote to transfer China's seat to the People's Republic of China (PRC) in 1971. When the PRC subsequently acceded to the Convention, they described the Republic of China's (ROC) signature as "illegal".[3] 65 UN member states have neither signed nor ratified the Convention.

List of parties[edit]

State[3] Signed Deposited Method
 Albania Jun 27, 2001 Accession
 Algeria Nov 8, 1988 Accession
 Andorra Apr 5, 2004 Accession
 Argentina May 23, 1969 Dec 5, 1972 Ratification
 Armenia May 17, 2005 Accession
 Australia Jun 13, 1974 Accession
 Austria Apr 30, 1979 Accession
 Azerbaijan Jan 11, 2018 Accession
 Barbados May 23, 1969 Jun 24, 1971 Ratification
 Belarus May 1, 1986 Accession as the  Byelorussian SSR
 Belgium Sep 1, 1992 Accession
 Benin Nov 2, 2017 Accession
 Bosnia and Herzegovina Sep 1, 1993 Succession from  Socialist Federal Republic of Yugoslavia
 Brazil May 23, 1969 Sep 25, 2009 Ratification
 Bulgaria Apr 21, 1987 Accession
 Burkina Faso May 25, 2006 Accession
 Cameroon Oct 23, 1991 Accession
 Canada Oct 14, 1970 Accession
 Central African Republic Dec 10, 1971 Accession
 Chile May 23, 1969 Apr 9, 1981 Ratification
 China Sep 3, 1997 Accession
 Colombia May 23, 1969 Apr 10, 1985 Ratification
 Republic of the Congo May 23, 1969 Apr 12, 1982 Ratification
 Democratic Republic of the Congo Jul 25, 1977 Accession as  Zaire
 Costa Rica May 23, 1969 Nov 22, 1996 Ratification
 Croatia Oct 12, 1992 Succession from  Socialist Federal Republic of Yugoslavia
 Cuba Sep 9, 1998 Accession
 Cyprus Dec 28, 1976 Accession
 Czech Republic Feb 22, 1993 Succession from  Czechoslovakia
 Denmark Apr 18, 1970 Jun 1, 1976 Ratification
 Dominican Republic Apr 1, 2010 Accession
 Ecuador May 23, 1969 Feb 11, 2005 Ratification
 Egypt Feb 11, 1982 Accession
 Estonia Oct 21, 1991 Accession
 Finland May 23, 1969 Aug 19, 1977 Ratification
 Gabon Nov 5, 2004 Accession
 Georgia Jun 8, 1995 Accession
 Germany Apr 30, 1970 Jul 21, 1987 Ratification as  West Germany
Also acceded by  East Germany on 20 October 1986 prior to German reunification
 Greece Oct 30, 1974 Accession
 Guatemala May 23, 1969 Jul 21, 1997 Ratification
 Guinea Sep 16, 2005 Accession
 Guyana May 23, 1969 Sep 15, 2005 Ratification
 Haiti Aug 25, 1980 Accession
 Holy See Sep 30, 1969 Feb 25, 1977 Ratification
 Honduras May 23, 1969 Sep 20, 1979 Ratification
 Hungary Jun 19, 1987 Accession
 Ireland Aug 7, 2006 Accession
 Italy Apr 22, 1970 Jul 25, 1974 Ratification
 Jamaica May 23, 1969 Jul 28, 1970 Ratification
 Japan Jul 2, 1981 Accession
 Kazakhstan Jan 5, 1994 Accession
 Kiribati Sep 15, 2005 Accession
 South Korea Nov 27, 1969 Apr 27, 1977 Ratification
 Kuwait Nov 11, 1975 Accession
 Kyrgyzstan May 11, 1999 Accession
 Laos Mar 31, 1998 Accession
 Latvia May 4, 1993 Accession
 Lesotho Mar 3, 1972 Accession
 Liberia May 23, 1969 Aug 29, 1985 Ratification
 Libya Dec 22, 2008 Accession as the  Libyan Arab Jamahiriya
 Liechtenstein Feb 8, 1990 Accession
 Lithuania Jan 15, 1992 Accession
 Luxembourg Sep 4, 1969 May 23, 2003 Ratification
 Macedonia Jul 8, 1999 Succession from  Socialist Federal Republic of Yugoslavia
 Malawi Aug 23, 1983 Accession
 Malaysia Jul 27, 1994 Accession
 Maldives Sep 14, 2005 Accession
 Mali Aug 31, 1998 Accession
 Malta Sep 26, 2012 Accession
 Mauritius Jan 18, 1973 Accession
 Mexico May 23, 1969 Sep 25, 1974 Ratification
 Moldova Jan 26, 1993 Accession
 Mongolia May 16, 1988 Accession
 Montenegro Oct 23, 2006 Succession from  Serbia and Montenegro
 Morocco May 23, 1969 Sep 26, 1972 Ratification
 Mozambique May 8, 2001 Accession
 Myanmar Sep 16, 1998 Accession
 Nauru May 5, 1978 Accession
 Netherlands Apr 9, 1985 Accession
 New Zealand Apr 29, 1970 Aug 4, 1971 Ratification
 Niger Oct 27, 1971 Accession
 Nigeria May 23, 1969 Jul 31, 1969 Ratification
 Oman Oct 18, 1990 Accession
 Panama Jul 28, 1980 Accession
 Paraguay Feb 3, 1972 Accession
 Peru May 23, 1969 Sep 14, 2000 Ratification
 Philippines May 23, 1969 Nov 15, 1972 Ratification
 Poland Jul 2, 1990 Accession
 Portugal Feb 6, 2004 Accession
 Russia Apr 29, 1986 Accession as the  Soviet Union
 Rwanda Jan 3, 1980 Accession
 Saudi Arabia Apr 14, 2003 Accession
 Senegal Apr 11, 1986 Accession
 Serbia Mar 12, 2001 Succession as  Federal Republic of Yugoslavia from  Socialist Federal Republic of Yugoslavia
 Slovakia May 28, 1993 Succession from  Czechoslovakia
 Slovenia Jul 6, 1992 Succession from  Socialist Federal Republic of Yugoslavia
 Solomon Islands Aug 9, 1989 Accession
 Spain May 16, 1972 Accession
 St. Vincent and the Grenadines Apr 27, 1999 Accession
 Palestine Apr 2, 2014 Accession
 Sudan May 23, 1969 Apr 18, 1990 Ratification
 Suriname Jan 31, 1991 Accession
 Sweden Apr 23, 1970 Feb 4, 1975 Ratification
  Switzerland May 7, 1990 Accession
 Syria Oct 2, 1970 Accession
 Tajikistan May 6, 1996 Accession
 Tanzania Apr 12, 1976 Accession
 Timor-Leste Jan 8, 2013 Accession
 Togo Dec 28, 1979 Accession
 Tunisia Jun 23, 1971 Accession
 Turkmenistan Jan 4, 1996 Accession
 Ukraine May 14, 1986 Accession as the  Ukrainian SSR
 United Kingdom Apr 20, 1970 Jun 25, 1971 Ratification
 Uruguay May 23, 1969 Mar 5, 1982 Ratification
 Uzbekistan Jul 12, 1995 Accession
 Vietnam Oct 10, 2001 Accession

List of signatories that have not ratified[edit]

State[3] Signed
 Afghanistan May 23, 1969
 Bolivia May 23, 1969
 Cambodia May 23, 1969
 Côte d'Ivoire Jul 23, 1969
 El Salvador Feb 16, 1970
 Ethiopia Apr 30, 1970
 Ghana May 23, 1969
 Iran May 23, 1969
 Kenya May 23, 1969
 Madagascar May 23, 1969
   Nepal May 23, 1969
 Pakistan Apr 29, 1970
 Trinidad and Tobago May 23, 1969
 United States Apr 24, 1970
 Zambia May 23, 1969
Partially recognized state

The Republic of China (Taiwan), which is currently only recognized by 16 UN member states, signed the treaty prior to the United Nations General Assembly's vote to transfer China's seat to the People's Republic of China (PRC) in 1971. When the PRC subsequently acceded the treaty, they described the Republic of China's (ROC) signature as "illegal".[3]

State[3] Signed
 Republic of China Apr 27, 1970

References[edit]

  1. ^ untreaty.un.org, Law of treaties Archived 2013-10-17 at the Wayback Machine., International Law Commission, last update: 30 June 2005. Consulted on 7 December 2008.
  2. ^ a b Vienna Convention on the Law of Treaties, pg. 1
  3. ^ a b c d e f "Vienna Convention on the Law of Treaties". United Nations Treaty Series. Retrieved 23 July 2013.