| Albania |
|
Accession : June 1, 2000 |
September 1, 2000 |
|
| Algeria |
|
Accession : January 22, 2007 |
April 22, 2007 |
Details
|
| Andorra |
|
Accession : February 25, 2004 |
May 25, 2004 |
|
| Argentina |
October 26, 1961 |
Ratification : December 2, 1991 |
March 2, 1992 |
|
| Armenia |
|
Accession : October 31, 2002 |
January 31, 2003 |
|
| Australia |
|
Accession : June 30, 1992 |
September 30, 1992 |
Details
|
| Austria |
October 26, 1961 |
Ratification : March 9, 1973 |
June 9, 1973 |
Details
|
| Azerbaijan |
|
Accession : July 8, 2005 |
October 8, 2005 |
|
| Bahamas |
|
Accession : July 16, 2026 |
October 16, 2026 |
|
| Bahrain |
|
Accession : October 18, 2005 |
January 18, 2006 |
|
| Barbados |
|
Accession : June 18, 1983 |
September 18, 1983 |
|
| Belarus |
|
Accession : February 27, 2003 |
May 27, 2003 |
Details
|
| Belgium |
October 26, 1961 |
Ratification : July 2, 1999 |
October 2, 1999 |
Details
|
| Belize |
|
Accession : November 9, 2018 |
February 9, 2019 |
|
| Bolivia (Plurinational State of) |
|
Accession : August 24, 1993 |
November 24, 1993 |
|
| Bosnia and Herzegovina |
October 26, 1961 |
Ratification : February 19, 2009 |
May 19, 2009 |
Details
|
| Brazil |
October 26, 1961 |
Ratification : June 29, 1965 |
September 29, 1965 |
|
| Bulgaria |
|
Accession : May 31, 1995 |
August 31, 1995 |
Details
|
| Burkina Faso |
|
Accession : October 14, 1987 |
January 14, 1988 |
|
| Cabo Verde |
|
Accession : April 3, 1997 |
July 3, 1997 |
|
| Cambodia |
October 26, 1961 |
|
|
|
| Canada |
|
Accession : March 4, 1998 |
June 4, 1998 |
Details
|
| Chile |
October 26, 1961 |
Ratification : June 5, 1974 |
September 5, 1974 |
|
| Colombia |
|
Accession : June 17, 1976 |
September 17, 1976 |
|
| Congo |
|
Accession : June 29, 1962 |
May 18, 1964 |
Details
|
| Costa Rica |
|
Accession : June 9, 1971 |
September 9, 1971 |
Details
|
| Croatia |
|
Accession : January 20, 2000 |
April 20, 2000 |
Details
|
| Cyprus |
|
Accession : March 17, 2009 |
June 17, 2009 |
|
| Czech Republic |
|
Declaration/Notification of Succession : September 30, 1993 |
January 1, 1993 |
Details
|
| Denmark |
October 26, 1961 |
Ratification : June 23, 1965 |
September 23, 1965 |
Details
|
| Dominica |
|
Accession : August 9, 1999 |
November 9, 1999 |
|
| Dominican Republic |
|
Accession : October 27, 1986 |
January 27, 1987 |
|
| Ecuador |
June 26, 1962 |
Ratification : December 19, 1963 |
May 18, 1964 |
|
| El Salvador |
|
Accession : March 29, 1979 |
June 29, 1979 |
|
| Estonia |
|
Accession : January 28, 2000 |
April 28, 2000 |
Details
|
| Fiji |
|
Accession : January 11, 1972 |
April 11, 1972 |
Details
|
| Finland |
June 21, 1962 |
Ratification : July 21, 1983 |
October 21, 1983 |
Details
|
| France |
October 26, 1961 |
Ratification : April 3, 1987 |
July 3, 1987 |
Details
|
| Georgia |
|
Accession : May 14, 2004 |
August 14, 2004 |
|
| Germany |
October 26, 1961 |
Ratification : July 21, 1966 |
October 21, 1966 |
Details
|
| Greece |
|
Accession : October 6, 1992 |
January 6, 1993 |
|
| Guatemala |
|
Accession : October 14, 1976 |
January 14, 1977 |
|
| Holy See |
October 26, 1961 |
|
|
|
| Honduras |
|
Accession : November 16, 1989 |
February 16, 1990 |
|
| Hungary |
|
Accession : November 10, 1994 |
February 10, 1995 |
|
| Iceland |
October 26, 1961 |
Accession : March 15, 1994 |
June 15, 1994 |
Details
|
| India |
October 26, 1961 |
|
|
|
| Ireland |
June 30, 1962 |
Ratification : June 19, 1979 |
September 19, 1979 |
Details
|
| Israel |
February 7, 1962 |
Accession : September 30, 2002 |
December 30, 2002 |
Details
|
| Italy |
October 26, 1961 |
Ratification : January 8, 1975 |
April 8, 1975 |
Details
|
| Jamaica |
|
Accession : October 27, 1993 |
January 27, 1994 |
|
| Japan |
|
Accession : July 26, 1989 |
October 26, 1989 |
Details
|
| Kazakhstan |
|
Accession : March 30, 2012 |
June 30, 2012 |
|
| Kyrgyzstan |
|
Accession : May 13, 2003 |
August 13, 2003 |
|
| Latvia |
|
Accession : May 20, 1999 |
August 20, 1999 |
Details
|
| Lebanon |
June 26, 1962 |
Ratification : May 12, 1997 |
August 12, 1997 |
|
| Lesotho |
|
Accession : October 26, 1989 |
January 26, 1990 |
Details
|
| Liberia |
|
Accession : September 16, 2005 |
December 16, 2005 |
|
| Liechtenstein |
|
Accession : July 12, 1999 |
October 12, 1999 |
Details
|
| Lithuania |
|
Accession : April 22, 1999 |
July 22, 1999 |
Details
|
| Luxembourg |
|
Accession : November 25, 1975 |
February 25, 1976 |
Details
|
| Mexico |
October 26, 1961 |
Ratification : February 17, 1964 |
May 18, 1964 |
|
| Monaco |
June 22, 1962 |
Ratification : September 6, 1985 |
December 6, 1985 |
Details
|
| Montenegro |
|
Declaration/Notification of Succession : October 23, 2006 |
June 3, 2006 |
Details
|
| Netherlands (Kingdom of the) |
|
Accession : July 7, 1993 |
October 7, 1993 |
Details
|
| Nicaragua |
|
Accession : May 10, 2000 |
August 10, 2000 |
|
| Niger |
|
Accession : April 5, 1963 |
May 18, 1964 |
Details
|
| Nigeria |
|
Accession : July 29, 1993 |
October 29, 1993 |
Details
|
| North Macedonia |
|
Accession : December 2, 1997 |
March 2, 1998 |
Details
|
| Norway |
|
Accession : April 10, 1978 |
July 10, 1978 |
Details
|
| Panama |
|
Accession : June 2, 1983 |
September 2, 1983 |
|
| Paraguay |
June 30, 1962 |
Ratification : November 26, 1969 |
February 26, 1970 |
|
| Peru |
|
Accession : May 7, 1985 |
August 7, 1985 |
|
| Philippines |
|
Accession : June 25, 1984 |
September 25, 1984 |
|
| Poland |
|
Accession : March 13, 1997 |
June 13, 1997 |
Details
|
| Portugal |
|
Accession : April 17, 2002 |
July 17, 2002 |
|
| Qatar |
|
Accession : June 23, 2017 |
September 23, 2017 |
|
| Republic of Korea |
|
Accession : December 18, 2008 |
March 18, 2009 |
Details
|
| Republic of Moldova |
|
Accession : September 5, 1995 |
December 5, 1995 |
Details
|
| Romania |
|
Accession : July 22, 1998 |
October 22, 1998 |
Details
|
| Russian Federation |
|
Accession : February 26, 2003 |
May 26, 2003 |
Details
|
| Saint Kitts and Nevis |
|
Accession : November 6, 2025 |
February 6, 2026 |
|
| Saint Lucia |
|
Accession : May 17, 1996 |
August 17, 1996 |
Details
|
| Serbia |
October 26, 1961 |
Ratification : March 10, 2003 |
June 10, 2003 |
Details
|
| Slovakia |
|
Declaration/Notification of Succession : May 28, 1993 |
January 1, 1993 |
Details
|
| Slovenia |
|
Accession : July 9, 1996 |
October 9, 1996 |
Details
|
| Spain |
October 26, 1961 |
Ratification : August 14, 1991 |
November 14, 1991 |
Details
|
| Sweden |
October 26, 1961 |
Ratification : July 13, 1962 |
May 18, 1964 |
Details
|
| Switzerland |
|
Accession : June 24, 1993 |
September 24, 1993 |
Details
|
| Syrian Arab Republic |
|
Accession : February 13, 2006 |
May 13, 2006 |
|
| Tajikistan |
|
Accession : February 19, 2008 |
May 19, 2008 |
|
| Togo |
|
Accession : March 10, 2003 |
June 10, 2003 |
|
| Trinidad and Tobago |
|
Accession : December 9, 2019 |
March 9, 2020 |
|
| Tunisia |
|
Accession : April 13, 2023 |
July 13, 2023 |
|
| Turkmenistan |
|
Accession : August 31, 2020 |
November 30, 2020 |
|
| Türkiye |
|
Accession : January 8, 2004 |
April 8, 2004 |
|
| Ukraine |
|
Accession : March 12, 2002 |
June 12, 2002 |
|
| United Arab Emirates |
|
Accession : October 14, 2004 |
January 14, 2005 |
|
| United Kingdom |
October 26, 1961 |
Ratification : October 30, 1963 |
May 18, 1964 |
Details
|
| Uruguay |
|
Accession : April 4, 1977 |
July 4, 1977 |
|
| Uzbekistan |
|
Accession : July 16, 2024 |
October 16, 2024 |
Details
|
| Venezuela (Bolivarian Republic of) |
|
Accession : October 30, 1995 |
January 30, 1996 |
Details
|
| Viet Nam |
|
Accession : December 1, 2006 |
March 1, 2007 |
Details
|