| Country | Action | Action Date | Effective Date |
|---|
| AFGHANISTAN | Accession | 06/10/1965 | |
| ALBANIA | Signature | 18/04/1961 | |
| ALBANIA | Ratification | 08/02/1988 | 09/03/1988 |
| ALGERIA | Accession | 14/04/1964 | |
| All Territories under UK Sovereignty | Extension | 01/09/1964 | |
| ANDORRA | Accession | 03/07/1996 | 02/08/1996 |
| ANGOLA | Accession | 09/08/1990 | 08/09/1990 |
| Antilles | Extension | 07/09/1984 | 07/10/1984 |
| ARGENTINA | Signature | 08/04/1961 | |
| ARGENTINA | Ratification | 10/10/1963 | |
| ARMENIA | Accession | 23/06/1993 | 23/07/1993 |
| Aruba | Extension | 01/01/1986 | |
| AUSTRALIA | Signature | 30/03/1962 | |
| AUSTRALIA | Ratification | 26/01/1968 | |
| AUSTRALIA | Objection | 14/03/1968 | |
| AUSTRALIA | Objection | 20/11/1970 | |
| AUSTRALIA | Objection | 06/09/1973 | |
| AUSTRALIA | Objection | 25/01/1977 | |
| AUSTRALIA | Objection | 21/06/1978 | |
| AUSTRALIA | Objection | 22/02/1983 | |
| AUSTRALIA | Objection | 10/02/1987 | |
| AUSTRIA | Signature | 18/04/1961 | |
| AUSTRIA | Ratification | 28/04/1966 | |
| AZERBAIJAN | Accession | 13/08/1992 | 12/09/1992 |
| BAHAMAS | Succession | 17/03/1977 | |
| BAHAMAS | Declaration | 08/06/1977 | |
| BAHRAIN | Accession | 02/11/1971 | |
| BAHRAIN | Reservation | 02/11/1971 | |
| BANGLADESH | Succession | 13/01/1978 | |
| BARBADOS | Succession | 06/05/1968 | |
| BELARUS | Signature | 18/04/1961 | |
| BELARUS | Ratification | 14/05/1964 | |
| BELARUS | Reservation | 14/05/1964 | |
| BELARUS | Declaration | 14/05/1964 | |
| BELARUS | Objection | 02/11/1977 | |
| BELARUS | Objection | 16/10/1986 | |
| BELARUS | Objection | 11/11/1986 | |
| BELGIUM | Signature | 23/10/1961 | |
| BELGIUM | Ratification | 02/05/1968 | |
| BELGIUM | Objection | 02/05/1968 | |
| BELGIUM | Objection | 28/01/1975 | |
| BELIZE | Accession | 30/11/2000 | 30/12/2000 |
| BHUTAN | Accession | 07/12/1972 | |
| BOLIVIA | Accession | 28/12/1977 | 27/01/1978 |
| BOSNIA AND HERZEGOVINA | Succession | 01/09/1993 | 06/03/1992 |
| BOTSWANA | Accession | 11/04/1969 | |
| BOTSWANA | Reservation | 11/04/1969 | |
| BRAZIL | Signature | 18/04/1961 | |
| BRAZIL | Ratification | 25/03/1965 | |
| BULGARIA | Signature | 18/04/1961 | |
| BULGARIA | Ratification | 17/01/1968 | |
| BULGARIA | Reservation | 17/01/1968 | |
| BULGARIA | Declaration | 17/01/1968 | |
| BULGARIA | Declaration | 14/04/1970 | |
| BULGARIA | Communication | 12/03/1971 | |
| BULGARIA | Objection | 22/09/1972 | |
| BULGARIA | Objection | 18/08/1977 | |
| BULGARIA | Objection | 23/06/1981 | |
| BULGARIA | Communication | 24/10/2002 | |
| BURKINA FASO | Accession | 04/05/1987 | 03/06/1987 |
| BURMA | Accession | 07/03/1980 | 06/04/1980 |
| BURUNDI | Accession | 01/05/1968 | |
| CAMBODIA | Accession | 31/08/1965 | |
| CAMBODIA | Reservation | 31/08/1975 | |
| CAMEROON | Accession | 04/03/1977 | 03/04/1977 |
| CANADA | Signature | 05/02/1962 | |
| CANADA | Ratification | 26/05/1966 | |
| CANADA | Objection | 26/05/1966 | |
| CANADA | Objection | 16/03/1978 | |
| CANADA | Communication | 14/05/2014 | |
| CAPE VERDE | Accession | 30/07/1979 | 29/08/1979 |
| CENTRAL AFRICAN REPUBLIC | Signature | 28/03/1962 | |
| CENTRAL AFRICAN REPUBLIC | Ratification | 19/03/1973 | |
| CEYLON | Signature | 18/04/1961 | |
| CEYLON | Ratification | 02/06/1978 | 02/07/1978 |
| CHAD | Accession | 03/11/1977 | 03/12/1977 |
| CHILE | Signature | 18/04/1961 | |
| CHILE | Ratification | 09/01/1968 | |
| CHINA | Accession | 25/11/1975 | 25/12/1975 |
| CHINA | Reservation | 25/11/1975 | |
| CHINA | Withdrawal Res. | 15/09/1980 | |
| COLOMBIA | Signature | 18/04/1961 | |
| COLOMBIA | Ratification | 05/04/1973 | |
| COMOROS | Accession | 27/09/2004 | 27/10/2004 |
| CONGO, REPUBLIC OF | Accession | 11/03/1963 | |
| COSTA RICA | Signature | 14/02/1962 | |
| COSTA RICA | Ratification | 09/11/1964 | |
| CROATIA | Succession | 12/10/1992 | 08/10/1991 |
| CUBA | Signature | 16/01/1962 | |
| CUBA | Ratification | 26/09/1963 | |
| CUBA | Reservation | 26/09/1963 | |
| CYPRUS | Accession | 10/09/1968 | |
| CZECH REPUBLIC | Succession | 22/02/1993 | 01/01/1993 |
| CZECHOSLOVAKIA | Signature | 18/04/1961 | |
| CZECHOSLOVAKIA | Ratification | 24/05/1963 | |
| CZECHOSLOVAKIA | Objection | 19/01/1972 | |
| CZECHOSLOVAKIA | Objection | 24/10/1977 | |
| CZECHOSLOVAKIA | Objection | 28/10/1977 | |
| CZECHOSLOVAKIA | Objection | 12/12/1977 | |
| CZECHOSLOVAKIA | Objection | 01/06/1987 | |
| DAHOMEY | Accession | 27/03/1967 | |
| DENMARK | Signature | 18/04/1961 | |
| DENMARK | Ratification | 02/10/1968 | |
| DENMARK | Objection | 02/10/1968 | |
| DENMARK | Objection | 05/08/1970 | |
| DENMARK | Objection | 29/03/1977 | |
| DJIBOUTI | Accession | 02/11/1978 | 02/12/1978 |
| DOMINICA, COMMONWEALTH OF | Succession | 24/11/1987 | 03/11/1978 |
| DOMINICAN REPUBLIC | Signature | 30/05/1962 | |
| DOMINICAN REPUBLIC | Ratification | 14/01/1964 | |
| ECUADOR | Signature | 18/04/1961 | |
| ECUADOR | Reservation | 18/04/1961 | |
| ECUADOR | Ratification | 21/09/1964 | |
| ECUADOR | Withdrawal Res. | 21/09/1964 | |
| EGYPT | Accession | 09/06/1964 | |
| EGYPT | Reservation | 09/06/1964 | |
| EGYPT | Withdrawal Res. | 18/01/1980 | |
| EQUATORIAL GUINEA | Accession | 30/08/1976 | 29/09/1976 |
| EQUATORIAL GUINEA | Accession | 04/11/2014 | 04/11/2014 |
| ERITREA | Accession | 14/01/1997 | 13/02/1997 |
| ESTONIA | Accession | 21/10/1991 | 20/11/1991 |
| ETHIOPIA | Accession | 22/03/1979 | 21/04/1979 |
| FIJI | Succession | 21/06/1971 | |
| FINLAND | Signature | 20/10/1961 | |
| FINLAND | Ratification | 09/12/1969 | 08/01/1970 |
| FRANCE | Signature | 30/03/1962 | |
| FRANCE | Ratification | 31/12/1970 | |
| FRANCE | Declaration | 31/12/1970 | |
| FRANCE | Objection | 31/12/1970 | |
| FRANCE | Statement | 17/06/1974 | |
| FRANCE | Statement | 08/07/1975 | |
| FRANCE | Objection | 28/12/1976 | |
| FRANCE | Objection | 29/08/1986 | |
| GABON | Accession | 02/04/1964 | |
| GEORGIA | Accession | 12/07/1993 | 11/08/1993 |
| GERMAN DEMOCRATIC REPUBLIC | Accession | 02/02/1973 | |
| GERMAN DEMOCRATIC REPUBLIC | Reservation | 02/02/1973 | |
| GERMAN DEMOCRATIC REPUBLIC | Declaration | 02/02/1973 | |
| GERMANY FEDERAL REPUBLIC | Signature | 18/04/1961 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 11/11/1964 | |
| GERMANY FEDERAL REPUBLIC | Statement | 11/11/1964 | |
| GERMANY FEDERAL REPUBLIC | Objection | 11/11/1964 | |
| GERMANY FEDERAL REPUBLIC | Objection | 16/03/1967 | |
| GERMANY FEDERAL REPUBLIC | Objection | 10/05/1967 | |
| GERMANY FEDERAL REPUBLIC | Objection | 09/07/1968 | |
| GERMANY FEDERAL REPUBLIC | Objection | 23/12/1968 | |
| GERMANY FEDERAL REPUBLIC | Declaration | 15/07/1974 | |
| GERMANY FEDERAL REPUBLIC | Objection | 25/09/1974 | |
| GERMANY FEDERAL REPUBLIC | Objection | 04/02/1975 | |
| GERMANY FEDERAL REPUBLIC | Communication | 19/09/1975 | |
| GERMANY FEDERAL REPUBLIC | Objection | 04/03/1977 | |
| GERMANY FEDERAL REPUBLIC | Objection | 06/05/1977 | |
| GERMANY FEDERAL REPUBLIC | Objection | 19/09/1977 | |
| GERMANY FEDERAL REPUBLIC | Objection | 11/07/1979 | |
| GERMANY FEDERAL REPUBLIC | Objection | 11/12/1980 | |
| GERMANY FEDERAL REPUBLIC | Objection | 15/05/1981 | |
| GERMANY FEDERAL REPUBLIC | Objection | 30/09/1981 | |
| GERMANY FEDERAL REPUBLIC | Objection | 03/03/1987 | |
| GHANA | Signature | 18/04/1961 | |
| GHANA | Ratification | 28/06/1962 | |
| GREECE | Signature | 29/03/1962 | |
| GREECE | Reservation | 29/03/1962 | |
| GREECE | Ratification | 16/07/1970 | 15/08/1970 |
| GREECE | Withdrawal Res. | 16/07/1970 | |
| GREECE | Objection | 16/07/1970 | |
| GRENADA | Accession | 02/09/1992 | 02/10/1992 |
| GUATEMALA | Signature | 18/04/1961 | |
| GUATEMALA | Ratification | 01/10/1963 | |
| GUATEMALA | Objection | 23/12/1963 | |
| GUINEA | Accession | 10/01/1968 | |
| GUINEA BISSAU | Accession | 11/08/1993 | 10/09/1993 |
| GUYANA | Accession | 28/12/1972 | |
| HAITI | Objection | 09/05/1972 | |
| HAITI | Accession | 02/02/1978 | 04/03/1978 |
| HONDURAS | Accession | 13/02/1968 | |
| HUNGARY | Signature | 18/04/1961 | |
| HUNGARY | Ratification | 01/10/1963 | |
| HUNGARY | Declaration | 01/10/1963 | |
| HUNGARY | Objection | 07/07/1975 | |
| HUNGARY | Objection | 06/09/1978 | |
| ICELAND | Accession | 18/05/1971 | |
| INDIA | Accession | 15/10/1965 | |
| INDONESIA | Accession | 04/06/1982 | 04/07/1982 |
| IRAN | Signature | 27/05/1961 | |
| IRAN | Ratification | 03/02/1965 | |
| IRAQ | Signature | 20/02/1962 | |
| IRAQ | Ratification | 15/10/1963 | |
| IRAQ | Reservation | 15/10/1963 | |
| IRELAND, REPUBLIC OF | Signature | 18/04/1961 | |
| IRELAND, REPUBLIC OF | Ratification | 10/05/1967 | |
| IRELAND, REPUBLIC OF | Objection | 17/01/1978 | |
| ISRAEL | Signature | 18/04/1961 | |
| ISRAEL | Objection | 05/09/1969 | |
| ISRAEL | Objection | 15/10/1969 | |
| ISRAEL | Objection | 06/01/1972 | |
| ISRAEL | Objection | 12/01/1977 | |
| ISRAEL | Objection | 30/08/1977 | |
| ISRAEL | Objection | 29/10/1979 | |
| ISRAEL | Objection | 01/04/1981 | |
| ISRAEL | Objection | 14/08/1981 | |
| ISRAEL | Objection | 15/10/1986 | |
| ISRAEL | Objection | 01/09/1987 | |
| ISRAEL | Communication | 16/05/2014 | |
| ITALY | Signature | 13/03/1962 | |
| ITALY | Ratification | 25/06/1969 | |
| IVORY COAST | Accession | 01/10/1962 | |
| JAMAICA | Accession | 05/06/1963 | |
| JAPAN | Signature | 26/03/1962 | |
| JAPAN | Ratification | 08/06/1964 | |
| JAPAN | Declaration | 08/06/1964 | |
| JAPAN | Objection | 27/01/1987 | |
| JORDAN | Accession | 29/07/1971 | |
| KAZAKHSTAN | Accession | 05/01/1994 | 04/02/1994 |
| KENYA | Accession | 01/07/1965 | |
| KIRIBATI | Succession | 02/04/1982 | |
| KOREA DEMOCRATIC PEOPLE'S REPUBLIC OF | Accession | 29/10/1980 | 28/11/1980 |
| KOREA REPUBLIC OF | Signature | 28/03/1962 | |
| KOREA REPUBLIC OF | Ratification | 28/12/1970 | |
| KOREA REPUBLIC OF | Communication | 28/05/1971 | |
| KUWAIT | Accession | 23/07/1969 | |
| KUWAIT | Declaration | 23/07/1969 | |
| KYRGYZSTAN | Accession | 07/10/1994 | 06/11/1994 |
| Land Berlin | Extension | 11/11/1964 | |
| LAOS | Accession | 03/12/1962 | |
| LATVIA | Accession | 13/02/1992 | 14/03/1992 |
| LEBANON | Signature | 18/04/1961 | |
| LEBANON | Ratification | 16/03/1971 | |
| LESOTHO | Accession | 26/11/1969 | |
| LIBERIA | Signature | 18/04/1961 | |
| LIBERIA | Ratification | 15/05/1962 | |
| LIBYA | Accession | 07/06/1977 | 07/07/1977 |
| LIBYA | Reservation | 07/06/1977 | |
| LIECHTENSTEIN | Signature | 18/04/1961 | |
| LIECHTENSTEIN | Ratification | 08/05/1964 | |
| LITHUANIA | Accession | 15/01/1992 | 14/02/1992 |
| LUXEMBOURG | Signature | 02/02/1962 | |
| LUXEMBOURG | Objection | 18/01/1965 | |
| LUXEMBOURG | Objection | 25/10/1965 | |
| LUXEMBOURG | Ratification | 17/08/1966 | |
| MACEDONIA THE FYR OF | Succession | 18/08/1993 | 17/09/1991 |
| MADAGASCAR | Accession | 31/07/1963 | |
| MALAWI | Accession | 19/05/1965 | |
| MALAYSIA | Accession | 09/11/1965 | |
| MALDIVES | Accession | 02/10/2007 | 01/11/2007 |
| MALI | Accession | 28/03/1968 | |
| MALTA | Succession | 07/03/1967 | 01/10/1964 |
| MALTA | Declaration | 07/03/1967 | |
| MARSHALL ISLANDS | Accession | 09/08/1991 | 08/09/1991 |
| MAURITANIA | Accession | 16/07/1962 | |
| MAURITIUS | Succession | 12/03/1968 | |
| MEXICO | Signature | 18/04/1961 | |
| MEXICO | Ratification | 16/06/1965 | |
| MICRONESIA | Accession | 29/04/1991 | 29/05/1991 |
| MOLDOVA REPUBLIC OF | Accession | 26/01/1993 | 25/02/1993 |
| MONGOLIA | Accession | 05/01/1967 | |
| MONGOLIA | Declaration | 05/01/1967 | |
| MONGOLIA | Reservation | 05/01/1967 | |
| MONGOLIA | Declaration | 07/01/1970 | |
| MONGOLIA | Declaration | 18/01/1978 | |
| MONGOLIA | Withdrawal Res. | 19/07/1990 | |
| MOROCCO | Accession | 19/06/1968 | |
| MOROCCO | Reservation | 19/06/1968 | |
| MOZAMBIQUE | Accession | 18/11/1981 | 18/12/1981 |
| MOZAMBIQUE | Declaration | 18/11/1981 | |
| NAMIBIA | Accession | 14/09/1992 | 14/10/1992 |
| NAURU | Succession | 05/05/1978 | |
| NEPAL | Accession | 28/09/1965 | |
| NEPAL | Reservation | 28/09/1965 | |
| NETHERLANDS THE | Accession | 07/09/1984 | 07/10/1984 |
| NETHERLANDS THE | Objection | 07/09/1984 | |
| NEW ZEALAND | Signature | 28/03/1962 | |
| NEW ZEALAND | Ratification | 23/09/1970 | |
| NEW ZEALAND | Objection | 23/09/1970 | |
| NEW ZEALAND | Objection | 25/01/1977 | |
| NICARAGUA | Accession | 31/10/1975 | 30/11/1975 |
| NIGER | Accession | 05/12/1962 | |
| NIGERIA | Signature | 31/03/1962 | |
| NIGERIA | Ratification | 19/07/1967 | |
| NORWAY | Signature | 18/04/1961 | |
| NORWAY | Ratification | 24/10/1967 | |
| OMAN | Accession | 31/05/1974 | 30/06/1974 |
| OMAN | Declaration | 31/05/1974 | |
| PAKISTAN | Signature | 29/03/1962 | |
| PAKISTAN | Ratification | 29/03/1962 | |
| PAKISTAN | Declaration | 28/06/1971 | |
| PALESTINE (INCL. PLO) | Accession | 02/04/2014 | 02/05/2014 |
| PANAMA | Signature | 18/04/1961 | |
| PANAMA | Ratification | 04/12/1963 | |
| PAPUA NEW GUINEA | Succession | 04/12/1975 | |
| PARAGUAY | Accession | 23/12/1969 | |
| PERU | Accession | 18/12/1968 | |
| PHILIPPINES | Signature | 20/10/1961 | |
| PHILIPPINES | Ratification | 15/11/1965 | |
| POLAND | Signature | 18/04/1961 | |
| POLAND | Ratification | 19/04/1965 | |
| POLAND | Objection | 02/11/1970 | |
| POLAND | Objection | 03/11/1975 | |
| POLAND | Objection | 07/03/1978 | |
| PORTUGAL | Accession | 11/09/1968 | |
| PORTUGAL | Reservation | 11/09/1968 | |
| PORTUGAL | Withdrawal Res. | 01/06/1972 | |
| PORTUGAL | Communication | 18/11/1999 | 20/12/1999 |
| QATAR | Accession | 06/06/1986 | 06/07/1986 |
| QATAR | Reservation | 06/06/1986 | |
| ROMANIA | Signature | 18/04/1961 | |
| ROMANIA | Ratification | 15/11/1968 | |
| ROMANIA | Declaration | 15/11/1968 | |
| ROMANIA | Objection | 22/01/1970 | |
| ROMANIA | Communication | 26/02/1971 | |
| ROMANIA | Communication | 13/03/2002 | |
| RWANDA | Accession | 15/04/1964 | |
| SAINT LUCIA | Succession | 27/08/1986 | 22/02/1979 |
| SALVADOR | Accession | 09/12/1965 | |
| SAMOA | Accession | 26/10/1987 | 25/11/1987 |
| SAN MARINO | Signature | 25/10/1961 | |
| SAN MARINO | Ratification | 08/09/1965 | |
| SAO TOME AND PRINCIPE | Accession | 03/05/1983 | |
| SAUDI ARABIA | Accession | 10/02/1981 | 12/03/1981 |
| SAUDI ARABIA | Reservation | 10/02/1981 | |
| SENEGAL | Signature | 18/04/1961 | |
| SENEGAL | Ratification | 12/10/1972 | 11/11/1972 |
| SEYCHELLES | Accession | 29/05/1979 | 28/06/1979 |
| SIERRA LEONE | Accession | 13/08/1962 | |
| SINGAPORE | Accession | 01/04/2005 | 01/05/2005 |
| SLOVAK REPUBLIC | Succession | 28/05/1993 | 01/01/1993 |
| SLOVENIA | Succession | 01/07/1992 | 25/06/1991 |
| SOMALI DEMOCRATIC REPUBLIC | Accession | 29/03/1968 | |
| SOUTH AFRICA | Signature | 28/03/1962 | |
| SOUTH AFRICA | Ratification | 21/08/1989 | 20/09/1989 |
| SOVIET UNION | Signature | 18/04/1961 | |
| SOVIET UNION | Ratification | 25/03/1964 | |
| SOVIET UNION | Reservation | 25/03/1964 | |
| SOVIET UNION | Declaration | 25/03/1964 | |
| SOVIET UNION | Objection | 06/06/1972 | |
| SOVIET UNION | Communication | 12/09/1974 | |
| SOVIET UNION | Communication | 08/12/1975 | |
| SOVIET UNION | Objection | 11/10/1977 | |
| SOVIET UNION | Objection | 07/11/1977 | |
| SOVIET UNION | Objection | 16/02/1982 | |
| SOVIET UNION | Objection | 06/10/1986 | |
| SOVIET UNION | Objection | 06/11/1986 | |
| SPAIN | Accession | 21/11/1967 | |
| ST KITTS AND NEVIS | Accession | 06/07/2010 | 05/08/2010 |
| ST VINCENT AND THE GRENADINES | Succession | 27/04/1999 | 27/10/1999 |
| SUDAN | Accession | 13/04/1981 | 13/05/1981 |
| SUDAN | Reservation | 13/04/1981 | |
| SUDAN | Understanding | 13/04/1981 | |
| SURINAME | Accession | 28/10/1992 | 27/11/1992 |
| SWAZILAND | Accession | 25/04/1969 | |
| SWEDEN | Signature | 18/04/1961 | |
| SWEDEN | Ratification | 21/03/1967 | |
| SWITZERLAND | Signature | 18/04/1961 | |
| SWITZERLAND | Ratification | 30/10/1963 | |
| SYRIA | Accession | 04/08/1978 | 03/09/1978 |
| SYRIA | Reservation | 15/03/1979 | |
| TAIWAN | Signature | 18/04/1961 | |
| TAIWAN | Ratification | 19/12/1969 | |
| TAJIKISTAN | Accession | 06/05/1996 | 05/06/1996 |
| TANZANIA | Signature | 27/02/1962 | |
| TANZANIA | Ratification | 05/11/1962 | |
| THAILAND | Signature | 30/10/1961 | |
| THAILAND | Ratification | 23/01/1985 | 22/02/1985 |
| THAILAND | Objection | 23/01/1985 | |
| TIMOR-LESTE | Accession | 30/01/2004 | 29/02/2004 |
| TOGO | Accession | 27/11/1970 | |
| TONGA | Succession | 14/02/1972 | |
| TONGA | Declaration | 14/02/1972 | |
| TRINIDAD AND TOBAGO | Accession | 19/10/1965 | |
| TUNISIA | Accession | 24/01/1968 | |
| TURKEY | Accession | 06/03/1985 | 05/04/1985 |
| TURKMENISTAN | Accession | 25/09/1996 | 25/10/1996 |
| TUVALU | Succession | 15/09/1982 | 01/10/1978 |
| TUVALU | Communication | 15/09/1982 | |
| UGANDA | Accession | 15/04/1965 | |
| UKRAINE | Signature | 18/04/1961 | |
| UKRAINE | Ratification | 12/06/1964 | |
| UKRAINE | Reservation | 12/06/1964 | |
| UKRAINE | Declaration | 12/06/1964 | |
| UKRAINE | Communication | 07/05/1970 | |
| UKRAINE | Objection | 28/07/1972 | |
| UKRAINE | Communication | 19/09/1974 | |
| UKRAINE | Objection | 24/10/1977 | |
| UKRAINE | Objection | 20/10/1986 | |
| UNITED ARAB EMIRATES | Accession | 04/02/1977 | 26/03/1977 |
| UNITED ARAB EMIRATES | Declaration | 04/02/1977 | |
| UNITED KINGDOM | Signature | 11/12/1961 | |
| UNITED KINGDOM | Ratification | 01/09/1964 | |
| UNITED KINGDOM | Objection | 01/09/1964 | |
| UNITED KINGDOM | Objection | 07/06/1967 | |
| UNITED KINGDOM | Objection | 29/03/1968 | |
| UNITED KINGDOM | Objection | 19/06/1968 | |
| UNITED KINGDOM | Objection | 23/08/1968 | |
| UNITED KINGDOM | Objection | 10/12/1968 | |
| UNITED KINGDOM | Objection | 13/03/1973 | |
| UNITED KINGDOM | Objection | 16/04/1973 | |
| UNITED KINGDOM | Statement | 17/06/1974 | |
| UNITED KINGDOM | Statement | 08/07/1975 | |
| UNITED KINGDOM | Objection | 25/01/1977 | |
| UNITED KINGDOM | Objection | 04/02/1977 | |
| UNITED KINGDOM | Objection | 19/02/1987 | |
| UNITED KINGDOM | Notification | 10/06/1997 | 01/07/1997 |
| UNITED STATES OF AMERICA | Signature | 29/06/1961 | |
| UNITED STATES OF AMERICA | Ratification | 13/11/1972 | 13/12/1972 |
| UNITED STATES OF AMERICA | Statement | 17/06/1974 | |
| UNITED STATES OF AMERICA | Objection | 02/07/1974 | |
| UNITED STATES OF AMERICA | Statement | 08/07/1975 | |
| UNITED STATES OF AMERICA | Objection | 04/09/1987 | |
| UNITED STATES OF AMERICA | Communication | 13/05/2014 | |
| URUGUAY | Signature | 18/04/1961 | |
| URUGUAY | Ratification | 10/03/1970 | 09/04/1970 |
| UZBEKISTAN | Accession | 02/03/1992 | 01/04/1992 |
| VATICAN CITY | Signature | 18/04/1961 | |
| VATICAN CITY | Ratification | 17/04/1964 | |
| VENEZUELA | Signature | 18/04/1961 | |
| VENEZUELA | Reservation | 18/04/1961 | |
| VENEZUELA | Ratification | 16/03/1965 | |
| VENEZUELA | Withdrawal Res. | 16/03/1965 | |
| VENEZUELA | Reservation | 16/03/1965 | |
| VIETNAM | Accession | 10/05/1973 | 09/06/1973 |
| VIETNAM | Declaration | 10/05/1973 | |
| VIETNAM | Accession | 26/08/1980 | 25/09/1980 |
| VIETNAM | Declaration | 26/08/1980 | |
| YEMEN ARAB REPUBLIC | Accession | 10/04/1986 | 10/05/1986 |
| YEMEN ARAB REPUBLIC | Reservation | 10/04/1986 | |
| YEMEN, PEOPLES'S DEMOCRATIC REPUBLIC OF | Accession | 24/11/1976 | 24/12/1976 |
| YEMEN, PEOPLES'S DEMOCRATIC REPUBLIC OF | Reservation | 24/11/1976 | |
| YEMEN, PEOPLES'S DEMOCRATIC REPUBLIC OF | Declaration | 24/11/1976 | |
| YUGOSLAVIA | Signature | 18/04/1961 | |
| YUGOSLAVIA | Ratification | 01/04/1963 | |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Succession | 12/03/2001 | 27/04/1992 |
| ZAIRE | Signature | 18/04/1961 | |
| ZAIRE | Ratification | 19/07/1965 | |
| ZAMBIA | Succession | 16/06/1975 | 24/10/1964 |
| ZAMBIA | Communication | 16/10/1985 | |
| ZIMBABWE | Accession | 13/05/1991 | 12/06/1991 |