| Country | Action | Action Date | Effective Date |
|---|
| Aden Protectorate | Extension | 19/06/1958 | 19/06/1958 |
| ALBANIA | Ratification | 03/06/1957 | |
| ALGERIA | Ratification | 19/10/1962 | |
| ANGOLA | Ratification | 13/06/2001 | 13/06/2002 |
| Anguilla | Extension | 04/02/1963 | |
| Antigua | Extension | 15/01/1963 | |
| ANTIGUA AND BARBUDA | Succession | 02/02/1983 | 02/02/1983 |
| ANTIGUA AND BARBUDA | Reservation | 02/02/1983 | |
| ANTIGUA AND BARBUDA | Declaration | 02/02/1983 | |
| Antilles | Extension | 25/06/1951 | |
| ARGENTINA | Ratification | 18/01/1960 | |
| ARMENIA | Ratification | 02/01/2006 | 02/01/2007 |
| AUSTRALIA | Ratification | 28/02/1973 | |
| AUSTRALIA | Extension | 15/06/1973 | |
| AUSTRIA | Ratification | 18/10/1950 | |
| AZERBAIJAN | Succession | 19/05/1992 | 19/05/1992 |
| Bahamas | Extension | 03/04/1963 | |
| BAHAMAS | Ratification | 21/02/1967 | |
| BAHAMAS | Ratification | 14/06/2001 | 14/06/2002 |
| BANGLADESH | Ratification | 22/06/1972 | |
| BARBADOS | Succession | 08/05/1967 | |
| Basutoland | Extension | 17/03/1959 | |
| Bechuanaland | Extension | 17/03/1959 | |
| BELGIUM | Ratification | 23/10/1951 | |
| BELIZE | Succession | 15/12/1983 | 15/12/1983 |
| BELIZE | Ratification | 15/12/1983 | |
| BELIZE | Declaration | 15/12/1983 | |
| BENIN | Ratification | 12/12/1960 | |
| Bermuda | Extension | 10/01/1962 | |
| BOLIVIA | Ratification | 04/01/1965 | |
| BOSNIA AND HERZEGOVINA | Succession | 02/06/1993 | 02/06/1993 |
| British Honduras | Extension | 29/12/1958 | |
| British Virgin Islands | Extension | 12/06/1964 | |
| BULGARIA | Ratification | 18/06/1959 | |
| BURMA | Ratification | 04/03/1955 | |
| BURUNDI | Ratification | 25/06/1993 | 25/06/1994 |
| BYELORUSSIA S S R | Ratification | 06/11/1956 | |
| CAMBODIA | Ratification | 23/08/1999 | 23/08/2000 |
| CAMEROON | Ratification | 07/06/1960 | |
| CANADA | Ratification | 23/03/1972 | |
| CAPE VERDE | Ratification | 01/02/1999 | 01/02/2000 |
| Cayman Islands | Extension | 29/12/1958 | |
| CENTRAL AFRICAN REPUBLIC | Ratification | 17/10/1960 | |
| CHAD | Ratification | 10/11/1960 | |
| CHILE | Ratification | 01/02/1999 | 01/02/2000 |
| CHINA | Declaration | 20/10/1999 | |
| COLOMBIA | Ratification | 16/11/1976 | |
| COMOROS | Succession | 23/10/1978 | 23/10/1978 |
| CONGO, DEMOCRATIC REPUBLIC OF | Ratification | 20/06/2001 | 20/06/2002 |
| CONGO, PEOPLES REPUBLIC OF | Ratification | 10/11/1960 | |
| COSTA RICA | Ratification | 02/06/1960 | |
| CROATIA | Succession | 08/10/1991 | 08/10/1991 |
| CUBA | Ratification | 25/06/1952 | |
| CYPRUS | Ratification | 24/05/1966 | |
| CZECH REPUBLIC | Succession | 01/01/1993 | 01/01/1993 |
| CZECHOSLOVAKIA | Ratification | 21/01/1964 | |
| DENMARK | Ratification | 13/06/1951 | |
| DENMARK | Extension | 31/05/1954 | |
| DJIBOUTI | Ratification | 03/08/1978 | 03/08/1978 |
| DJIBOUTI | Declaration | 03/08/1978 | |
| Dominica | Extension | 29/12/1958 | |
| DOMINICA, COMMONWEALTH OF | Succession | 28/02/1983 | 28/02/1983 |
| DOMINICA, COMMONWEALTH OF | Reservation | 28/02/1983 | |
| DOMINICA, COMMONWEALTH OF | Declaration | 28/02/1983 | |
| DOMINICAN REPUBLIC | Ratification | 05/12/1956 | |
| ECUADOR | Ratification | 29/05/1967 | |
| EGYPT | Ratification | 06/11/1957 | |
| EL SALVADOR | Ratification | 06/09/2006 | 06/09/2007 |
| EQUATORIAL GUINEA | Ratification | 13/08/2001 | 13/08/2002 |
| ERITREA | Ratification | 22/02/2000 | 22/02/2001 |
| ESTONIA | Ratification | 22/03/1994 | 22/03/1995 |
| ETHIOPIA | Ratification | 04/06/1963 | |
| Falkland Islands | Extension | 05/07/1962 | |
| Fiji | Extension | 26/05/1966 | |
| FIJI | Ratification | 17/04/2002 | 17/04/2003 |
| FINLAND | Ratification | 20/01/1950 | |
| FRANCE | Ratification | 28/06/1951 | |
| FRANCE | Extension | 19/03/1954 | |
| FRANCE | Declaration | 13/03/1990 | 03/03/1990 |
| French Cameroons | Extension | 19/05/1954 | |
| French Equatorial Africa | Extension | 19/05/1954 | |
| French India | Extension | 19/05/1954 | |
| French Oceania | Extension | 19/03/1954 | |
| French Somaliland | Extension | 19/05/1954 | |
| French Togoland | Extension | 19/03/1954 | |
| French West Africa | Extension | 19/03/1954 | |
| GABON | Ratification | 14/10/1960 | |
| GAMBIA THE | Ratification | 24/01/1962 | |
| GEORGIA | Ratification | 03/08/1999 | 03/09/2000 |
| GERMAN DEMOCRATIC REPUBLIC | Ratification | 07/05/1975 | |
| GERMAN DEMOCRATIC REPUBLIC | Declaration | 07/05/1975 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 20/03/1957 | |
| GHANA | Ratification | 02/06/1965 | |
| Gibraltar | Extension | 19/06/1958 | 19/06/1958 |
| Gilbert & Ellice Colony | Extension | 15/08/1967 | |
| GREECE | Ratification | 30/03/1962 | |
| Grenada | Extension | 29/12/1958 | |
| GRENADA | Ratification | 25/10/1994 | 25/10/1995 |
| GUATEMALA | Ratification | 13/02/1952 | |
| Guernsey | Extension | 27/06/1949 | |
| GUINEA | Ratification | 21/01/1959 | |
| GUYANA | Succession | 25/09/1967 | |
| HAITI | Ratification | 05/06/1979 | 05/06/1979 |
| HONDURAS | Ratification | 27/06/1956 | |
| Hong Kong | Extension | 15/10/1963 | |
| HUNGARY | Ratification | 06/06/1957 | |
| ICELAND | Ratification | 19/08/1950 | |
| INDONESIA | Ratification | 09/06/1998 | 09/06/1999 |
| IRELAND, REPUBLIC OF | Ratification | 04/06/1955 | |
| Isle of Man | Extension | 27/06/1949 | |
| ISRAEL | Ratification | 28/01/1957 | |
| ITALY | Ratification | 13/05/1958 | |
| IVORY COAST | Ratification | 12/11/1960 | |
| Jamaica | Extension | 29/12/1958 | |
| JAMAICA | Succession | 26/12/1962 | |
| JAPAN | Ratification | 14/06/1965 | |
| Jersey | Extension | 29/12/1958 | |
| KIRIBATI | Ratification | 03/02/2000 | 03/02/2000 |
| KUWAIT | Ratification | 29/01/1961 | |
| KYRGYZSTAN | Succession | 31/03/1992 | 31/03/1992 |
| LATVIA | Ratification | 27/01/1992 | 17/01/1992 |
| LESOTHO | Succession | 31/10/1966 | |
| LIBERIA | Ratification | 25/05/1962 | |
| LITHUANIA | Ratification | 26/09/1994 | 26/09/1994 |
| LUXEMBOURG | Ratification | 03/03/1958 | |
| MADAGASCAR | Ratification | 01/11/1960 | |
| MALAWI | Ratification | 19/11/1999 | 19/11/2000 |
| MALI | Ratification | 22/09/1960 | 22/09/1960 |
| Malta | Extension | 19/06/1958 | 19/06/1958 |
| MALTA | Succession | 04/01/1965 | |
| MAURITANIA | Ratification | 20/06/1961 | |
| Mauritius | Extension | 29/12/1958 | |
| MAURITIUS | Succession | 21/02/1967 | |
| MAURITIUS | Ratification | 01/04/2005 | 01/04/2006 |
| MEXICO | Ratification | 01/04/1950 | |
| MONGOLIA | Ratification | 03/06/1969 | |
| Montserrat | Extension | 26/11/1962 | |
| NETHERLANDS THE | Ratification | 07/03/1950 | |
| NETHERLANDS THE | Extension | 25/06/1951 | |
| NETHERLANDS THE | Declaration | 01/01/1986 | 01/01/1986 |
| New Caledonia | Extension | 19/03/1954 | |
| New Guinea | Extension | 25/06/1951 | |
| NICARAGUA | Ratification | 31/10/1967 | |
| NIGER | Ratification | 27/02/1961 | |
| NIGERIA | Ratification | 17/10/1960 | |
| Norfolk Island | Extension | 15/06/1973 | |
| North Borneo | Extension | 29/12/1958 | |
| Northern Ireland | Extension | 09/12/1959 | 09/12/1959 |
| NORWAY | Ratification | 04/07/1949 | |
| Nyasaland | Extension | 23/02/1959 | |
| PAKISTAN | Ratification | 14/02/1951 | |
| PANAMA | Ratification | 03/06/1958 | |
| PAPUA NEW GUINEA | Ratification | 02/06/2000 | 02/06/2000 |
| PARAGUAY | Ratification | 01/02/1962 | |
| PERU | Ratification | 14/02/1960 | |
| PHILIPPINES | Ratification | 29/12/1953 | |
| POLAND | Ratification | 25/02/1957 | |
| PORTUGAL | Ratification | 14/10/1977 | 14/10/1977 |
| PORTUGAL | Declaration | 13/09/1999 | |
| ROMANIA | Ratification | 28/05/1957 | |
| RWANDA | Ratification | 08/11/1988 | 08/11/1988 |
| SAINT LUCIA | Succession | 14/05/1980 | 14/05/1980 |
| SAO TOME AND PRINCIPE | Ratification | 17/06/1992 | 17/06/1992 |
| Sarawak | Extension | 29/12/1958 | |
| SENEGAL | Ratification | 04/11/1960 | |
| Seychelles | Extension | 07/07/1964 | |
| Sierra Leone | Extension | 19/06/1958 | 19/06/1958 |
| SIERRA LEONE | Succession | 15/06/1961 | |
| SLOVAK REPUBLIC | Succession | 01/01/1993 | 01/01/1993 |
| SLOVENIA | Succession | 09/06/1992 | 09/06/1992 |
| SOUTH AFRICA | Ratification | 19/02/1996 | 19/02/1997 |
| SOVIET UNION | Ratification | 10/08/1956 | |
| SPAIN | Ratification | 29/04/1977 | |
| St Helena | Extension | 26/05/1966 | |
| St Kitts | Extension | 04/02/1963 | |
| ST KITTS AND NEVIS | Ratification | 25/08/2000 | 25/08/2001 |
| St Lucia | Extension | 29/12/1958 | |
| St Pierre and Miquelon | Extension | 19/03/1954 | |
| St Vincent | Extension | 29/12/1958 | |
| ST VINCENT AND THE GRENADINES | Ratification | 09/11/2001 | 09/11/2002 |
| Suriname | Extension | 25/06/1951 | |
| SURINAME | Succession | 15/06/1976 | |
| Swaziland | Extension | 17/03/1959 | |
| SWAZILAND | Ratification | 23/03/1962 | |
| SWEDEN | Ratification | 25/11/1949 | |
| SWITZERLAND | Ratification | 25/03/1975 | |
| SYRIA | Ratification | 30/10/1961 | |
| TAJIKISTAN | Succession | 26/11/1993 | 26/11/1993 |
| TANZANIA | Ratification | 18/04/2000 | 18/04/2001 |
| TOGO | Ratification | 07/06/1960 | |
| Trinidad And Tobago | Extension | 19/06/1958 | 19/06/1958 |
| TRINIDAD AND TOBAGO | Succession | 24/05/1963 | |
| TUNISIA | Ratification | 18/06/1957 | |
| TURKEY | Ratification | 12/07/1993 | 12/07/1994 |
| Turks And Caicos Islands | Extension | 29/12/1958 | |
| Uganda | Extension | 17/03/1959 | |
| UKRAINE S S R | Ratification | 14/09/1956 | |
| UNITED KINGDOM | Signature | 09/07/1948 | |
| UNITED KINGDOM | Ratification | 27/06/1949 | |
| UPPER VOLTA | Ratification | 21/11/1960 | |
| URUGUAY | Ratification | 18/03/1954 | |
| VENEZUELA | Ratification | 20/09/1982 | |
| YEMEN ARAB REPUBLIC | Ratification | 29/07/1976 | |
| YUGOSLAVIA | Ratification | 23/07/1958 | |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Ratification | 24/11/2000 | 24/11/2000 |
| Zanzibar | Extension | 08/03/1960 | |
| ZIMBABWE | Ratification | 09/04/2003 | 09/04/2004 |