Vienna Convention on the Law of Treaties

General Detail

General Information

  1. Type: Convention
  2. Date of signature:
  3. Place of signature: Vienna, Austria
  4. Depositary:
  5. Date of entry into force: 27/01/1980

Category

Treaties law

Sub category

General

Groups

What is it about?

Commonly referred to as the “treaty on treaties”, the 1969 Vienna Convention codifies the procedures by which treaties are adopted, interpreted, invalidated and terminated. Drafted by the International Law Commission, the 1969 Convention is a codification of established and binding customary international law on treaties.

Why is it relevant?

The Vienna Convention of 1969 ensures that a uniform set of rules applies to treaties. Codifying a large number of customary norms, it also establishes rules on points which were previously unsettled. In that its provisions are the codification of existing customary international law, the 1969 Vienna Convention may arguably be considered one of the few treaties which is binding on all states, even those which are not a party.

Additional Information

Questions not settled by the Vienna Convention of 1969 continue to be governed by customary international law. Treaties concluded between States and International Organizations are covered by the Vienna Convention on the Law of Treaties between States and International Organizations (Vienna, 21 March 1986).

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Country ratifications
CountryRatification date
Albania27/06/2001
Algeria08/11/1988
Andorra05/04/2004
Argentina05/12/1972
Armenia17/05/2005
Australia13/06/1974
Austria30/04/1979
Barbados24/06/1971
Belarus01/05/1986
Belgium01/09/1992
Bosnia and Herzegovina01/09/1993
Bulgaria21/04/1987
Burkina Faso25/05/2006
Cameroon23/10/1991
Canada14/10/1970
Central African Republic10/12/1971
Chile09/04/1981
China03/09/1997
Colombia10/04/1985
Congo12/04/1982
Costa Rica22/11/1996
Croatia12/10/1992
Cuba09/09/1998
Cyprus28/12/1976
Czech Republic22/02/1993
Democratic Republic of the Congo25/06/1977
Denmark01/06/1976
Ecuador11/02/2005
Egypt11/02/1982
Estonia21/10/1991
Finland19/08/1977
Gabon05/11/2004
Georgia08/06/1995
Germany21/07/1987
Greece30/10/1974
Guatemala21/07/1997
Guinea16/09/2005
Guyana15/09/2005
Haiti25/08/1980
Holy See25/02/1977
Honduras20/09/1979
Hungary19/06/1987
Ireland07/08/2006
Italy25/07/1974
Jamaica28/07/1970
Japan02/07/1981
Kazakhstan05/01/1994
Kiribati15/09/2005
Kuwait11/11/1975
Kyrgyzstan11/05/1999
Lao People's Democratic Republic31/03/1998
Latvia04/05/1993
Lesotho03/03/1972
Liberia29/08/1985
Liechtenstein08/02/1990
Lithuania15/01/1992
Luxembourg23/05/2003
Macedonia (The former Yugoslav Republic of)08/07/1999
Malawi23/08/1983
Malaysia27/07/1994
Maldives14/09/2005
Mali31/08/1998
Mauritius18/01/1973
Mexico25/09/1974
Moldova26/01/1993
Mongolia16/05/1988
Montenegro23/10/2006
Morocco26/09/1972
Mozambique08/05/2001
Myanmar16/09/1998
Nauru05/05/1978
Netherlands09/04/1985
New Zealand04/08/1971
Niger27/10/1971
Nigeria31/07/1969
Oman18/10/1990
Panama28/07/1980
Paraguay03/02/1972
Peru14/09/2000
Philippines15/11/1972
Poland02/07/1990
Portugal06/02/2004
Republic of Korea27/04/1977
Russian Federation29/04/1986
Rwanda03/01/1980
Saint Vincent and the Grenadines27/04/1999
Saudi Arabia14/04/2003
Senegal11/04/1986
Serbia12/03/2001
Slovakia28/05/1993
Slovenia06/07/1992
Solomon Islands09/08/1989
Spain16/05/1972
Sudan18/04/1990
Suriname31/01/1991
Sweden04/02/1975
Switzerland07/05/1990
Syrian Arab Republic02/10/1970
Tajikistan06/05/1996
Togo28/12/1979
Tunisia23/06/1971
Turkmenistan04/01/1996
Ukraine14/05/1986
United Kingdom25/06/1971
United Republic of Tanzania12/04/1976
Uruguay05/03/1982
Uzbekistan12/07/1995
Viet Nam10/10/2001
Treaties analysis
YearRatifications
19691
19703
19716
19726
19731
19744
19752
19764
19774
19781
19793
19803
19812
19823
19831
19853
19864
19873
19882
19891
19905
19913
19924
19935
19942
19952
19963
19974
19984
19993
20001
20014
20032
20043
20056
20063
Total111
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