| Contracting Parties/Signatories | Signature | Instrument | In Force | Details |
|---|---|---|---|---|
| Afghanistan | Ratification : March 20, 1979 | June 20, 1979 | ||
| Albania | Ratification : July 10, 1989 | October 10, 1989 | ||
| Algeria | Ratification : June 24, 1974 | December 17, 1975 | ||
| Andorra | Acceptance : January 3, 1997 | April 3, 1997 | ||
| Angola | Ratification : November 7, 1991 | February 7, 1992 | ||
| Antigua and Barbuda | Acceptance : November 1, 1983 | February 1, 1984 | ||
| Argentina | Acceptance : August 23, 1978 | November 23, 1978 | Details | |
| Armenia | Declaration/Notification of Succession : September 5, 1993 | September 23, 1991 | Details | |
| Australia | Ratification : August 22, 1974 | December 17, 1975 | ||
| Austria | Ratification : December 18, 1992 | March 18, 1993 | ||
| Azerbaijan | Ratification : December 16, 1993 | March 16, 1994 | ||
| Bahamas | Ratification : May 15, 2014 | August 15, 2014 | ||
| Bahrain | Ratification : May 28, 1991 | August 28, 1991 | ||
| Bangladesh | Acceptance : August 3, 1983 | November 3, 1983 | ||
| Barbados | Acceptance : April 9, 2002 | July 9, 2002 | ||
| Belarus | Ratification : October 12, 1988 | January 12, 1989 | Details | |
| Belgium | Ratification : July 24, 1996 | October 24, 1996 | ||
| Belize | Ratification : November 6, 1990 | February 6, 1991 | ||
| Benin | Ratification : June 14, 1982 | September 14, 1982 | ||
| Bhutan | Ratification : October 17, 2001 | January 17, 2002 | ||
| Bolivia (Plurinational State of) | Ratification : October 4, 1976 | January 4, 1977 | ||
| Bosnia and Herzegovina | Declaration/Notification of Succession : July 12, 1993 | March 6, 1992 | Details | |
| Botswana | Acceptance : November 23, 1998 | February 23, 1999 | ||
| Brazil | Acceptance : September 1, 1977 | December 1, 1977 | Details | |
| Brunei Darussalam | Ratification : August 12, 2011 | November 12, 2011 | ||
| Bulgaria | Acceptance : March 7, 1974 | December 17, 1975 | Details | |
| Burkina Faso | Ratification : April 2, 1987 | July 2, 1987 | ||
| Burundi | Ratification : May 19, 1982 | August 19, 1982 | ||
| Cabo Verde | Acceptance : April 28, 1988 | July 28, 1988 | Details | |
| Cambodia | Acceptance : November 28, 1991 | February 28, 1992 | ||
| Cameroon | Ratification : December 7, 1982 | March 7, 1983 | ||
| Canada | Acceptance : July 23, 1976 | October 23, 1976 | ||
| Central African Republic | Ratification : December 22, 1980 | March 22, 1981 | ||
| Chad | Ratification : June 23, 1999 | September 23, 1999 | ||
| Chile | Ratification : February 20, 1980 | May 20, 1980 | ||
| China | Ratification : December 12, 1985 | March 12, 1986 | Details | |
| Colombia | Acceptance : May 24, 1983 | August 24, 1983 | ||
| Comoros | Ratification : September 27, 2000 | December 27, 2000 | ||
| Congo | Ratification : December 10, 1987 | March 10, 1988 | ||
| Cook Islands | Acceptance : January 16, 2009 | April 16, 2009 | ||
| Costa Rica | Ratification : August 23, 1977 | November 23, 1977 | ||
| Croatia | Declaration/Notification of Succession : July 6, 1992 | October 8, 1991 | Details | |
| Cuba | Ratification : March 24, 1981 | June 24, 1981 | ||
| Cyprus | Acceptance : August 14, 1975 | December 17, 1975 | ||
| Czech Republic | Declaration/Notification of Succession : March 26, 1993 | January 1, 1993 | Details | |
| Côte d'Ivoire | Ratification : January 9, 1981 | April 9, 1981 | ||
| Democratic People's Republic of Korea | Acceptance : July 21, 1998 | October 21, 1998 | ||
| Democratic Republic of the Congo | Ratification : September 23, 1974 | December 17, 1975 | Details | |
| Denmark | Ratification : July 25, 1979 | October 25, 1979 | Details | |
| Djibouti | Ratification : August 30, 2007 | November 30, 2007 | ||
| Dominica | Ratification : April 4, 1995 | July 4, 1995 | ||
| Dominican Republic | Ratification : February 12, 1985 | May 12, 1985 | ||
| Ecuador | Acceptance : June 16, 1975 | December 17, 1975 | ||
| Egypt | Ratification : February 7, 1974 | December 17, 1975 | ||
| El Salvador | Acceptance : October 8, 1991 | January 8, 1992 | ||
| Equatorial Guinea | Ratification : March 10, 2010 | June 10, 2010 | ||
| Eritrea | Acceptance : October 24, 2001 | January 24, 2002 | ||
| Estonia | Ratification : October 27, 1995 | January 27, 1996 | ||
| Eswatini | Ratification : November 30, 2005 | February 28, 2006 | ||
| Ethiopia | Ratification : July 6, 1977 | October 6, 1977 | ||
| Fiji | Ratification : November 21, 1990 | February 21, 1991 | ||
| Finland | Ratification : March 4, 1987 | June 4, 1987 | ||
| France | Acceptance : June 27, 1975 | December 17, 1975 | Details | |
| Gabon | Ratification : December 30, 1986 | March 30, 1987 | ||
| Gambia | Ratification : July 1, 1987 | October 1, 1987 | ||
| Georgia | Declaration/Notification of Succession : November 4, 1992 | April 9, 1991 | Details | |
| Germany | Ratification : August 23, 1976 | November 23, 1976 | Details | |
| Ghana | Ratification : July 4, 1975 | December 17, 1975 | ||
| Greece | Ratification : July 17, 1981 | October 17, 1981 | ||
| Grenada | Accession : August 13, 1998 | November 13, 1998 | ||
| Guatemala | Acceptance : January 16, 1979 | April 16, 1979 | ||
| Guinea | Ratification : March 18, 1979 | June 18, 1979 | ||
| Guinea-Bissau | Ratification : January 28, 2006 | April 28, 2006 | ||
| Guyana | Acceptance : June 20, 1977 | September 20, 1977 | ||
| Haiti | Ratification : January 18, 1980 | April 18, 1980 | ||
| Holy See | Accession : October 7, 1982 | January 7, 1983 | Details | |
| Honduras | Ratification : June 8, 1979 | September 8, 1979 | ||
| Hungary | Acceptance : July 15, 1985 | October 15, 1985 | ||
| Iceland | Ratification : December 19, 1995 | March 19, 1996 | ||
| India | Ratification : November 14, 1977 | February 14, 1978 | ||
| Indonesia | Acceptance : July 6, 1989 | October 6, 1989 | ||
| Iran (Islamic Republic of) | Acceptance : February 26, 1975 | December 17, 1975 | ||
| Iraq | Acceptance : March 5, 1974 | December 17, 1975 | Details | |
| Ireland | Ratification : September 16, 1991 | December 16, 1991 | ||
| Israel | Acceptance : October 6, 1999 | January 6, 2000 | Details | |
| Italy | Ratification : June 23, 1978 | September 23, 1978 | ||
| Jamaica | Accession : June 14, 1983 | September 14, 1983 | ||
| Japan | Accession : June 30, 1992 | September 30, 1992 | ||
| Jordan | Ratification : May 5, 1975 | December 17, 1975 | ||
| Kazakhstan | Acceptance : April 29, 1994 | July 29, 1994 | ||
| Kenya | Acceptance : June 5, 1991 | September 5, 1991 | ||
| Kiribati | Acceptance : May 12, 2000 | August 12, 2000 | ||
| Kuwait | Ratification : June 6, 2002 | September 6, 2002 | ||
| Kyrgyzstan | Acceptance : July 3, 1995 | October 3, 1995 | ||
| Lao People's Democratic Republic | Ratification : March 20, 1987 | June 20, 1987 | ||
| Latvia | Acceptance : January 10, 1995 | April 10, 1995 | ||
| Lebanon | Ratification : February 3, 1983 | May 3, 1983 | ||
| Lesotho | Acceptance : November 25, 2003 | February 25, 2004 | ||
| Liberia | Acceptance : March 28, 2002 | June 28, 2002 | ||
| Libya | Ratification : October 13, 1978 | January 13, 1979 | ||
| Lithuania | Acceptance : March 31, 1992 | June 30, 1992 | ||
| Luxembourg | Ratification : September 28, 1983 | December 28, 1983 | ||
| Madagascar | Ratification : July 19, 1983 | October 19, 1983 | ||
| Malawi | Ratification : January 5, 1982 | April 5, 1982 | ||
| Malaysia | Ratification : December 7, 1988 | March 7, 1989 | ||
| Maldives | Acceptance : May 22, 1986 | August 22, 1986 | ||
| Mali | Acceptance : April 5, 1977 | July 5, 1977 | ||
| Malta | Acceptance : November 14, 1978 | February 14, 1979 | ||
| Marshall Islands | Acceptance : April 24, 2002 | July 24, 2002 | ||
| Mauritania | Ratification : March 2, 1981 | June 2, 1981 | ||
| Mauritius | Ratification : September 19, 1995 | December 19, 1995 | ||
| Mexico | Acceptance : February 23, 1984 | May 23, 1984 | ||
| Micronesia (Federated States of) | Acceptance : July 22, 2002 | October 22, 2002 | ||
| Monaco | Ratification : November 7, 1978 | February 7, 1979 | ||
| Mongolia | Acceptance : February 2, 1990 | May 2, 1990 | ||
| Montenegro | Declaration/Notification of Succession : April 26, 2007 | June 3, 2006 | Details | |
| Morocco | Ratification : October 28, 1975 | January 28, 1976 | ||
| Mozambique | Ratification : November 27, 1982 | February 27, 1983 | ||
| Myanmar | Acceptance : April 29, 1994 | July 29, 1994 | ||
| Namibia | Acceptance : April 6, 2000 | July 6, 2000 | ||
| Nauru | Ratification : July 22, 2024 | October 22, 2024 | ||
| Nepal | Acceptance : June 20, 1978 | September 20, 1978 | ||
| Netherlands (Kingdom of the) | Accession : August 26, 1992 | November 26, 1992 | Details | |
| New Zealand | Ratification : November 22, 1984 | February 22, 1985 | Details | |
| Nicaragua | Acceptance : December 17, 1979 | March 17, 1980 | ||
| Niger | Acceptance : November 13, 1974 | December 17, 1975 | ||
| Nigeria | Ratification : October 23, 1974 | December 17, 1975 | ||
| Niue | Acceptance : January 23, 2001 | April 23, 2001 | ||
| North Macedonia | Declaration/Notification of Succession : April 30, 1997 | November 17, 1991 | Details | |
| Norway | Ratification : May 12, 1977 | August 12, 1977 | Details | |
| Oman | Acceptance : October 6, 1981 | January 6, 1982 | Details | |
| Pakistan | Ratification : July 23, 1976 | October 23, 1976 | ||
| Palau | Acceptance : June 11, 2002 | September 11, 2002 | ||
| Palestine | Ratification : December 8, 2011 | March 8, 2012 | ||
| Panama | Ratification : March 3, 1978 | June 3, 1978 | ||
| Papua New Guinea | Acceptance : July 28, 1997 | October 28, 1997 | ||
| Paraguay | Ratification : April 27, 1988 | July 27, 1988 | ||
| Peru | Ratification : February 24, 1982 | May 24, 1982 | ||
| Philippines | Ratification : September 19, 1985 | December 19, 1985 | ||
| Poland | Ratification : June 29, 1976 | September 29, 1976 | ||
| Portugal | Ratification : September 30, 1980 | December 30, 1980 | Details | |
| Qatar | Acceptance : September 12, 1984 | December 12, 1984 | ||
| Republic of Korea | Acceptance : September 14, 1988 | December 14, 1988 | ||
| Republic of Moldova | Ratification : September 23, 2002 | December 23, 2002 | Details | |
| Romania | Acceptance : May 16, 1990 | August 16, 1990 | ||
| Russian Federation | Ratification : October 12, 1988 | January 12, 1989 | Details | |
| Rwanda | Acceptance : December 28, 2000 | March 28, 2001 | ||
| Saint Kitts and Nevis | Acceptance : July 10, 1986 | October 10, 1986 | ||
| Saint Lucia | Ratification : October 14, 1991 | January 14, 1992 | ||
| Saint Vincent and the Grenadines | Ratification : February 3, 2003 | May 3, 2003 | ||
| Samoa | Accession : August 28, 2001 | November 28, 2001 | ||
| San Marino | Ratification : October 18, 1991 | January 18, 1992 | ||
| Sao Tome and Principe | Ratification : July 25, 2006 | October 25, 2006 | ||
| Saudi Arabia | Acceptance : August 7, 1978 | November 7, 1978 | ||
| Senegal | Ratification : February 13, 1976 | May 13, 1976 | ||
| Serbia | Declaration/Notification of Succession : September 11, 2001 | April 27, 1992 | Details | |
| Seychelles | Acceptance : April 9, 1980 | July 9, 1980 | ||
| Sierra Leone | Ratification : January 7, 2005 | April 7, 2005 | ||
| Singapore | Acceptance : June 19, 2012 | September 19, 2012 | ||
| Slovakia | Declaration/Notification of Succession : March 31, 1993 | January 1, 1993 | Details | |
| Slovenia | Declaration/Notification of Succession : November 5, 1992 | June 25, 1991 | Details | |
| Solomon Islands | Accession : June 10, 1992 | September 10, 1992 | ||
| Somalia | Ratification : July 23, 2020 | October 23, 2020 | ||
| South Africa | Ratification : July 10, 1997 | October 10, 1997 | Details | |
| South Sudan | Ratification : March 9, 2016 | June 9, 2016 | Details | |
| Spain | Acceptance : May 4, 1982 | August 4, 1982 | ||
| Sri Lanka | Acceptance : June 6, 1980 | September 6, 1980 | ||
| Sudan | Ratification : June 6, 1974 | December 17, 1975 | ||
| Suriname | Acceptance : October 23, 1997 | January 23, 1998 | ||
| Sweden | Ratification : January 22, 1985 | April 22, 1985 | ||
| Switzerland | Ratification : September 17, 1975 | December 17, 1975 | ||
| Syrian Arab Republic | Acceptance : August 13, 1975 | December 17, 1975 | Details | |
| Tajikistan | Declaration/Notification of Succession : August 28, 1992 | September 9, 1991 | Details | |
| Thailand | Acceptance : September 17, 1987 | December 17, 1987 | ||
| Timor-Leste | Ratification : October 31, 2016 | January 31, 2017 | ||
| Togo | Acceptance : April 15, 1998 | July 15, 1998 | ||
| Tonga | Acceptance : June 3, 2004 | September 3, 2004 | ||
| Trinidad and Tobago | Ratification : February 16, 2005 | May 16, 2005 | ||
| Tunisia | Ratification : March 10, 1975 | December 17, 1975 | ||
| Turkmenistan | Declaration/Notification of Succession : September 30, 1994 | October 27, 1991 | Details | |
| Tuvalu | Ratification : May 18, 2023 | August 18, 2023 | ||
| Türkiye | Ratification : March 16, 1983 | June 16, 1983 | ||
| Uganda | Acceptance : November 20, 1987 | February 20, 1988 | ||
| Ukraine | Ratification : October 12, 1988 | January 12, 1989 | Details | |
| United Arab Emirates | Accession : May 11, 2001 | August 11, 2001 | ||
| United Kingdom | Ratification : May 29, 1984 | August 29, 1984 | Details | |
| United Republic of Tanzania | Ratification : August 2, 1977 | November 2, 1977 | ||
| United States of America | Ratification : December 7, 1973 | December 17, 1975 | Details | |
| Uruguay | Acceptance : March 9, 1989 | June 9, 1989 | ||
| Uzbekistan | Declaration/Notification of Succession : January 13, 1993 | September 1, 1991 | Details | |
| Vanuatu | Ratification : June 13, 2002 | September 13, 2002 | ||
| Venezuela (Bolivarian Republic of) | Acceptance : October 30, 1990 | January 30, 1991 | ||
| Viet Nam | Acceptance : October 19, 1987 | January 19, 1988 | ||
| Yemen | Ratification : October 7, 1980 | January 7, 1981 | Details | |
| Zambia | Ratification : June 4, 1984 | September 4, 1984 | ||
| Zimbabwe | Ratification : August 16, 1982 | November 16, 1982 |