| Member | Signature | Instrument | In Force | Details |
|---|---|---|---|---|
Afghanistan |
Accession: February 14, 2017
|
May 14, 2017
|
Details | |
Albania |
Accession: July 4, 1995
|
October 4, 1995
|
Details | |
Algeria |
Accession: September 16, 1965
|
March 1, 1966
|
Details | |
Andorra |
Accession: March 2, 2004
|
June 2, 2004
|
Details | |
Angola |
Accession: September 27, 2007
|
December 27, 2007
|
Details | |
Antigua and Barbuda |
Accession: December 17, 1999
|
March 17, 2000
|
Details | |
Argentina |
Accession: December 27, 1966
|
February 10, 1967
|
Details | |
Armenia |
Declaration of Continued Application: May 17, 1994
|
December 25, 1991
|
Details | |
Australia |
Accession: July 30, 1925
|
October 10, 1925
|
Details | |
Austria |
Accession: November 30, 1908
|
January 1, 1909
|
Details | |
Azerbaijan |
Accession: September 25, 1995
|
December 25, 1995
|
Details | |
Bahamas |
Declaration of Continued Application: July 5, 1976
|
July 10, 1973
|
Details | |
Bahrain |
Accession: July 29, 1997
|
October 29, 1997
|
Details | |
Bangladesh |
Accession: November 29, 1990
|
March 3, 1991
|
Details | |
Barbados |
Accession: December 12, 1984
|
March 12, 1985
|
Details | |
Belarus |
Declaration of Continued Application: April 14, 1993
|
December 25, 1991
|
Details | |
Belgium |
March 20, 1883
|
Ratification: June 6, 1884
|
July 7, 1884
|
Details |
Belize |
Accession: March 17, 2000
|
June 17, 2000
|
Details | |
Benin |
Accession: September 22, 1966
|
January 10, 1967
|
Details | |
Bhutan |
Accession: May 4, 2000
|
August 4, 2000
|
Details | |
Bolivia (Plurinational State of) |
Accession: August 4, 1993
|
November 4, 1993
|
Details | |
Bosnia and Herzegovina |
Declaration of Continued Application: June 2, 1993
|
March 1, 1992
|
Details | |
Botswana |
Accession: January 15, 1998
|
April 15, 1998
|
Details | |
Brazil |
March 20, 1883
|
Ratification: June 6, 1884
|
July 7, 1884
|
Details |
Brunei Darussalam |
Accession: November 17, 2011
|
February 17, 2012
|
Details | |
Bulgaria |
Accession: April 30, 1921
|
June 13, 1921
|
Details | |
Burkina Faso |
Accession: September 17, 1963
|
November 19, 1963
|
Details | |
Burundi |
Accession: May 31, 1977
|
September 3, 1977
|
Details | |
Cabo Verde |
Accession: April 6, 2022
|
July 6, 2022
|
Details | |
Cambodia |
Accession: June 22, 1998
|
September 22, 1998
|
Details | |
Cameroon |
Accession: February 10, 1964
|
May 10, 1964
|
Details | |
Canada |
Accession: August 21, 1923
|
September 1, 1923
|
Details | |
Central African Republic |
Accession: October 5, 1963
|
November 19, 1963
|
Details | |
Chad |
Accession: September 11, 1963
|
November 19, 1963
|
Details | |
Chile |
Accession: March 13, 1991
|
June 14, 1991
|
Details | |
China |
Accession: December 19, 1984
|
March 19, 1985
|
Details | |
Colombia |
Accession: June 3, 1996
|
September 3, 1996
|
Details | |
Comoros |
Accession: January 3, 2005
|
April 3, 2005
|
Details | |
Congo |
Accession: June 26, 1963
|
September 2, 1963
|
Details | |
Costa Rica |
Accession: July 28, 1995
|
October 31, 1995
|
Details | |
Côte d'Ivoire |
Accession: August 9, 1963
|
October 23, 1963
|
Details | |
Croatia |
Declaration/Notification of Succession: July 28, 1992
|
October 8, 1991
|
Details | |
Cuba |
Accession: September 22, 1904
|
November 17, 1904
|
Details | |
Cyprus |
Accession: December 17, 1965
|
January 17, 1966
|
Details | |
Czech Republic |
Declaration of Continued Application: December 18, 1992
|
January 1, 1993
|
Details | |
Democratic People's Republic of Korea |
Accession: March 7, 1980
|
June 10, 1980
|
Details | |
Democratic Republic of the Congo |
Accession: October 28, 1974
|
January 31, 1975
|
Details | |
Denmark |
Accession: October 1, 1894
|
October 1, 1894
|
Details | |
Djibouti |
Accession: February 13, 2002
|
May 13, 2002
|
Details | |
Dominica |
Accession: May 7, 1999
|
August 7, 1999
|
Details | |
Dominican Republic |
Accession: October 20, 1884
|
July 11, 1890
|
Details | |
Ecuador |
Accession: March 22, 1999
|
June 22, 1999
|
Details | |
Egypt |
Accession: March 5, 1951
|
July 1, 1951
|
Details | |
El Salvador |
Accession: November 18, 1993
|
February 19, 1994
|
Details | |
Equatorial Guinea |
Accession: March 26, 1997
|
June 26, 1997
|
Details | |
Estonia |
Accession: May 24, 1994
|
August 24, 1994
|
Details | |
Eswatini |
Accession: February 12, 1991
|
May 12, 1991
|
Details | |
Fiji |
Accession: October 19, 2023
|
January 19, 2024
|
Details | |
Finland |
Accession: August 2, 1921
|
September 20, 1921
|
Details | |
France |
March 20, 1883
|
Ratification: June 6, 1884
|
July 7, 1884
|
Details |
Gabon |
Accession: November 16, 1963
|
February 29, 1964
|
Details | |
Gambia (the) |
Accession: October 21, 1991
|
January 21, 1992
|
Details | |
Georgia |
Declaration of Continued Application: January 18, 1994
|
December 25, 1991
|
Details | |
Germany |
Accession: May 1, 1903
|
May 1, 1903
|
Details | |
Ghana |
Accession: June 28, 1976
|
September 28, 1976
|
Details | |
Greece |
Accession: August 18, 1924
|
October 2, 1924
|
Details | |
Grenada |
Accession: June 22, 1998
|
September 22, 1998
|
Details | |
Guatemala |
Accession: May 18, 1998
|
August 18, 1998
|
Details | |
Guinea |
Accession: October 30, 1981
|
February 5, 1982
|
Details | |
Guinea-Bissau |
Accession: March 28, 1988
|
June 28, 1988
|
Details | |
Guyana |
Accession: July 25, 1994
|
October 25, 1994
|
Details | |
Haiti |
Accession: February 19, 1958
|
July 1, 1958
|
Details | |
Holy See |
Accession: July 21, 1960
|
September 29, 1960
|
Details | |
Honduras |
Accession: November 3, 1993
|
February 4, 1994
|
Details | |
Hungary |
Accession: November 30, 1908
|
January 1, 1909
|
Details | |
Iceland |
Accession: January 31, 1962
|
May 5, 1962
|
Details | |
India |
Accession: September 7, 1998
|
December 7, 1998
|
Details | |
Indonesia |
Declaration of Continued Application: August 15, 1950
|
December 24, 1950
|
Details | |
Iran (Islamic Republic of) |
Accession: September 1, 1959
|
December 16, 1959
|
Details | |
Iraq |
Accession: October 21, 1975
|
January 24, 1976
|
Details | |
Ireland |
Accession: October 22, 1925
|
December 4, 1925
|
Details | |
Israel |
Accession: December 14, 1949
|
March 24, 1950
|
Details | |
Italy |
March 20, 1883
|
Ratification: June 6, 1884
|
July 7, 1884
|
Details |
Jamaica |
Accession: September 24, 1999
|
December 24, 1999
|
Details | |
Japan |
Accession: April 18, 1899
|
July 15, 1899
|
Details | |
Jordan |
Accession: April 12, 1972
|
July 17, 1972
|
Details | |
Kazakhstan |
Declaration of Continued Application: February 16, 1993
|
December 25, 1991
|
Details | |
Kenya |
Accession: May 14, 1965
|
June 14, 1965
|
Details | |
Kiribati |
Accession: November 5, 2021
|
February 5, 2022
|
Details | |
Kuwait |
Accession: September 2, 2014
|
December 2, 2014
|
Details | |
Kyrgyzstan |
Declaration of Continued Application: February 14, 1994
|
December 25, 1991
|
Details | |
Lao People's Democratic Republic |
Accession: July 8, 1998
|
October 8, 1998
|
Details | |
Latvia |
Accession: June 7, 1993
|
September 7, 1993
|
Details | |
Lebanon |
Accession: June 18, 1924
|
September 1, 1924
|
Details | |
Lesotho |
Accession: June 27, 1989
|
September 28, 1989
|
Details | |
Liberia |
Accession: May 27, 1994
|
August 27, 1994
|
Details | |
Libya |
Accession: June 28, 1976
|
September 28, 1976
|
Details | |
Liechtenstein |
Accession: May 8, 1933
|
July 14, 1933
|
Details | |
Lithuania |
Accession: February 21, 1994
|
May 22, 1994
|
Details | |
Luxembourg |
Accession: May 12, 1922
|
June 30, 1922
|
Details | |
Madagascar |
Accession: October 7, 1963
|
December 21, 1963
|
Details | |
Malawi |
Declaration of Continued Application: May 24, 1965
|
July 6, 1964
|
Details | |
Malaysia |
Accession: June 23, 1988
|
January 1, 1989
|
Details | |
Mali |
Accession: October 14, 1982
|
March 1, 1983
|
Details | |
Malta |
Accession: August 29, 1967
|
October 20, 1967
|
Details | |
Mauritania |
Accession: October 26, 1964
|
April 11, 1965
|
Details | |
Mauritius |
Accession: June 21, 1976
|
September 24, 1976
|
Details | |
Mexico |
Accession: July 20, 1903
|
September 7, 1903
|
Details | |
Monaco |
Accession: February 9, 1956
|
April 29, 1956
|
Details | |
Mongolia |
Accession: January 16, 1985
|
April 21, 1985
|
Details | |
Montenegro |
Declaration of Continued Application: December 4, 2006
|
June 3, 2006
|
Details | |
Morocco |
Accession: February 27, 1917
|
July 30, 1917
|
Details | |
Mozambique |
Accession: April 9, 1998
|
July 9, 1998
|
Details | |
Namibia |
Accession: December 29, 2003
|
January 1, 2004
|
Details | |
Nepal |
Accession: March 22, 2001
|
June 22, 2001
|
Details | |
Netherlands (Kingdom of the) |
March 20, 1883
|
Ratification: June 6, 1884
|
July 7, 1884
|
Details |
New Zealand |
Accession: June 10, 1931
|
July 29, 1931
|
Details | |
Nicaragua |
Accession: April 3, 1996
|
July 3, 1996
|
Details | |
Niger |
Accession: September 10, 1963
|
July 5, 1964
|
Details | |
Nigeria |
Accession: July 17, 1963
|
September 2, 1963
|
Details | |
North Macedonia |
Declaration/Notification of Succession: July 23, 1993
|
September 8, 1991
|
Details | |
Norway |
Accession: May 29, 1885
|
July 1, 1885
|
Details | |
Oman |
Accession: April 14, 1999
|
July 14, 1999
|
Details | |
Pakistan |
Accession: April 22, 2004
|
July 22, 2004
|
Details | |
Panama |
Accession: July 19, 1996
|
October 19, 1996
|
Details | |
Papua New Guinea |
Accession: March 15, 1999
|
June 15, 1999
|
Details | |
Paraguay |
Accession: February 25, 1994
|
May 28, 1994
|
Details | |
Peru |
Accession: January 11, 1995
|
April 11, 1995
|
Details | |
Philippines |
Accession: August 12, 1965
|
September 27, 1965
|
Details | |
Poland |
Accession: June 24, 1919
|
November 10, 1919
|
Details | |
Portugal |
March 20, 1883
|
Ratification: June 6, 1884
|
July 7, 1884
|
Details |
Qatar |
Accession: April 5, 2000
|
July 5, 2000
|
Details | |
Republic of Korea |
Accession: February 1, 1980
|
May 4, 1980
|
Details | |
Republic of Moldova |
Declaration of Continued Application: June 3, 1993
|
December 25, 1991
|
Details | |
Romania |
Accession: August 26, 1920
|
October 6, 1920
|
Details | |
Russian Federation |
Accession: March 16, 1965
|
July 1, 1965
|
Details | |
Rwanda |
Accession: November 3, 1983
|
March 1, 1984
|
Details | |
Saint Kitts and Nevis |
Accession: January 3, 1995
|
April 9, 1995
|
Details | |
Saint Lucia |
Accession: March 9, 1995
|
June 9, 1995
|
Details | |
Saint Vincent and the Grenadines |
Accession: May 29, 1995
|
August 29, 1995
|
Details | |
Samoa |
Accession: June 21, 2013
|
September 21, 2013
|
Details | |
San Marino |
Accession: December 16, 1959
|
March 4, 1960
|
Details | |
Sao Tome and Principe |
Accession: February 12, 1998
|
May 12, 1998
|
Details | |
Saudi Arabia |
Accession: December 11, 2003
|
March 11, 2004
|
Details | |
Senegal |
Accession: October 16, 1963
|
December 21, 1963
|
Details | |
Serbia |
Declaration of Continued Application: September 19, 2006
|
April 27, 1992
|
Details | |
Seychelles |
Accession: August 7, 2002
|
November 7, 2002
|
Details | |
Sierra Leone |
Accession: March 17, 1997
|
June 17, 1997
|
Details | |
Singapore |
Accession: November 23, 1994
|
February 23, 1995
|
Details | |
Slovakia |
Declaration of Continued Application: December 30, 1992
|
January 1, 1993
|
Details | |
Slovenia |
Declaration of Continued Application: June 12, 1992
|
June 25, 1991
|
Details | |
South Africa |
Accession: October 20, 1947
|
December 1, 1947
|
Details | |
Spain |
March 20, 1883
|
Ratification: June 6, 1884
|
July 7, 1884
|
Details |
Sri Lanka |
Accession: October 9, 1952
|
December 29, 1952
|
Details | |
Sudan |
Accession: January 16, 1984
|
April 16, 1984
|
Details | |
Suriname |
Declaration of Continued Application: November 16, 1976
|
November 25, 1975
|
Details | |
Sweden |
Accession: May 29, 1885
|
July 1, 1885
|
Details | |
Switzerland |
March 20, 1883
|
Ratification: June 6, 1884
|
July 7, 1884
|
Details |
Syrian Arab Republic |
Accession: June 18, 1924
|
September 1, 1924
|
Details | |
Tajikistan |
Declaration of Continued Application: February 14, 1994
|
December 25, 1991
|
Details | |
Thailand |
Accession: May 2, 2008
|
August 2, 2008
|
Details | |
Togo |
Accession: July 11, 1967
|
September 10, 1967
|
Details | |
Tonga |
Accession: March 14, 2001
|
June 14, 2001
|
Details | |
Trinidad and Tobago |
Accession: May 14, 1964
|
August 1, 1964
|
Details | |
Tunisia |
Accession: March 20, 1884
|
July 7, 1884
|
Details | |
Türkiye |
Accession: August 6, 1925
|
October 10, 1925
|
Details | |
Turkmenistan |
Declaration of Continued Application: March 1, 1995
|
December 25, 1991
|
Details | |
Uganda |
Accession: May 14, 1965
|
June 14, 1965
|
Details | |
Ukraine |
Declaration of Continued Application: September 21, 1992
|
December 25, 1991
|
Details | |
United Arab Emirates |
Accession: June 19, 1996
|
September 19, 1996
|
Details | |
United Kingdom |
Accession: March 17, 1884
|
July 7, 1884
|
Details | |
United Republic of Tanzania |
Accession: April 2, 1963
|
June 16, 1963
|
Details | |
United States of America |
Accession: March 18, 1887
|
May 30, 1887
|
Details | |
Uruguay |
Accession: January 25, 1967
|
March 18, 1967
|
Details | |
Uzbekistan |
Declaration of Continued Application: August 18, 1993
|
December 25, 1991
|
Details | |
Venezuela (Bolivarian Republic of) |
Accession: June 9, 1995
|
September 12, 1995
|
Details | |
Viet Nam |
March 8, 1949
|
Details | ||
Yemen |
Accession: November 15, 2006
|
February 15, 2007
|
Details | |
Zambia |
Declaration of Continued Application: December 31, 1964
|
April 6, 1965
|
Details | |
Zimbabwe |
Declaration/Notification of Succession: September 29, 1981
|
April 18, 1980
|
Details |