| Country | Action | Action Date | Effective Date |
|---|
| ALGERIA | Accession | 19/10/1962 | |
| Anguilla | Extension | 22/03/1958 | 22/03/1958 |
| Anguilla | Withdrawal | 20/09/1982 | 20/09/1983 |
| ANTIGUA AND BARBUDA | Succession | 02/02/1983 | 02/02/1983 |
| Aruba | App without mod | 01/01/1986 | 01/01/1986 |
| Aruba | Declaration | 01/01/1986 | 01/01/1986 |
| AUSTRIA | Signature | 29/06/1949 | |
| AUSTRIA | Ratification | 10/11/1951 | |
| Bahamas | Extension | 22/03/1958 | 22/03/1958 |
| BAHAMAS | Succession | 25/05/1976 | |
| Barbados | Extension | 22/03/1958 | 22/03/1958 |
| BARBADOS | Succession | 08/05/1967 | |
| Bechuanaland | Extension | 11/12/1964 | |
| Bechuanaland | Withdrawal | 20/09/1982 | 20/09/1983 |
| Belgian Congo | Extension | 08/03/1956 | |
| BELGIUM | Signature | 29/06/1949 | |
| BELGIUM | Ratification | 13/10/1952 | |
| BELGIUM | Extension | 08/03/1956 | |
| BELIZE | Succession | 15/12/1983 | 15/12/1983 |
| Bermuda | Extension | 22/03/1958 | 22/03/1958 |
| Bermuda | Withdrawal | 20/09/1982 | 20/09/1983 |
| BRAZIL | Signature | 29/06/1949 | |
| BRAZIL | Ratification | 18/06/1965 | |
| British Guiana | Extension | 22/03/1958 | 22/03/1958 |
| British Guiana | Withdrawal | 20/09/1982 | 20/09/1983 |
| British Honduras | Extension | 22/03/1958 | 22/03/1958 |
| British Honduras | Reservation | 22/03/1958 | |
| British Honduras | Withdrawal | 20/09/1982 | 20/09/1983 |
| British Virgin Islands | Extension | 15/04/1958 | |
| British Virgin Islands | Withdrawal | 20/09/1982 | 20/09/1983 |
| Brunei | Extension | 22/03/1958 | 22/03/1958 |
| Brunei | Withdrawal | 20/09/1982 | 20/09/1983 |
| BULGARIA | Signature | 29/06/1949 | |
| BULGARIA | Ratification | 07/11/1955 | |
| BURUNDI | Accession | 11/03/1963 | |
| CAMEROON | Succession | 03/09/1962 | |
| CENTRAL AFRICAN REPUBLIC | Succession | 09/06/1964 | |
| COSTA RICA | Signature | 29/06/1949 | |
| COSTA RICA | Ratification | 02/06/1960 | |
| CUBA | Signature | 29/06/1949 | |
| CUBA | Ratification | 29/04/1952 | |
| Cyprus | Extension | 22/03/1958 | 22/03/1958 |
| CYPRUS | Succession | 23/09/1960 | |
| DENMARK | Signature | 29/06/1949 | |
| DENMARK | Ratification | 15/08/1955 | |
| DJIBOUTI | Succession | 03/08/1978 | 03/08/1978 |
| Dominica | Extension | 22/03/1958 | 22/03/1958 |
| DOMINICA, COMMONWEALTH OF | Succession | 28/02/1983 | 28/02/1983 |
| EGYPT | Signature | 29/06/1949 | |
| EGYPT | Ratification | 07/06/1957 | |
| EGYPT | Succession | 26/07/1960 | |
| FINLAND | Signature | 29/06/1949 | |
| FINLAND | Ratification | 22/12/1951 | |
| FRANCE | Signature | 29/06/1949 | |
| FRANCE | Ratification | 20/09/1951 | |
| FRANCE | Declaration | 27/11/1974 | |
| French Overseas Territories | Extension | 27/11/1974 | |
| GHANA | Succession | 04/04/1961 | |
| Gibraltar | Extension | 22/03/1958 | 22/03/1958 |
| Gibraltar | Withdrawal | 20/09/1985 | 20/08/1981 |
| Gilbert And Ellice Islands | Extension | 22/03/1958 | 22/03/1958 |
| Gilbert And Ellice Islands | Withdrawal | 20/09/1982 | 20/09/1983 |
| Grenada | Extension | 22/03/1958 | 22/03/1958 |
| GRENADA | Succession | 09/07/1979 | 09/07/1979 |
| GUATEMALA | Signature | 29/06/1949 | |
| GUATEMALA | Ratification | 13/02/1952 | |
| GUINEA | Succession | 12/12/1966 | |
| GUYANA | Succession | 08/06/1966 | |
| Hong Kong | Extension | 25/07/1977 | |
| Hong Kong | App. with mods. | 17/01/1979 | 17/01/1979 |
| Hong Kong | Withdrawal | 20/09/1982 | 20/09/1983 |
| IRAQ | Accession | 25/04/1986 | |
| ISRAEL | Signature | 29/06/1949 | |
| ISRAEL | Ratification | 30/03/1953 | |
| ITALY | Signature | 29/06/1949 | |
| ITALY | Ratification | 22/10/1952 | |
| Jamaica | Extension | 22/03/1958 | 22/03/1958 |
| JAMAICA | Succession | 26/12/1962 | |
| Kenya | Extension | 22/03/1958 | 22/03/1958 |
| KENYA | Succession | 13/01/1964 | |
| MALAYSIA | Succession | 03/03/1964 | |
| Malta | Extension | 22/03/1958 | 22/03/1958 |
| Malta | Reservation | 22/03/1958 | 22/03/1958 |
| Malta | Withdrawal | 20/09/1982 | 20/09/1983 |
| MAURITANIA | Succession | 08/11/1963 | |
| Mauritius | Extension | 22/03/1958 | 22/03/1958 |
| MAURITIUS | Succession | 02/12/1969 | |
| MOROCCO | Signature | 29/06/1949 | |
| MOROCCO | Ratification | 20/09/1956 | |
| NETHERLANDS THE | Signature | 29/06/1949 | |
| NETHERLANDS THE | Ratification | 20/05/1952 | |
| NETHERLANDS THE | Declaration | 01/01/1986 | 01/01/1986 |
| Netherlands West Indies | Extension | 22/03/1958 | 22/03/1958 |
| Netherlands West Indies | Withdrawal | 20/09/1982 | 20/09/1983 |
| Nigeria | Extension | 22/03/1958 | 22/03/1958 |
| NIGERIA | Succession | 17/10/1960 | |
| North Borneo | Extension | 22/03/1958 | 22/03/1958 |
| NORWAY | Accession | 12/02/1996 | 12/02/1997 |
| PANAMA | Signature | 29/06/1949 | |
| PANAMA | Ratification | 04/06/1971 | |
| PHILIPPINES | Signature | 29/06/1949 | |
| PHILIPPINES | Ratification | 29/12/1953 | |
| Ruanda Urundi | Extension | 08/03/1956 | |
| RWANDA | Succession | 18/09/1962 | |
| SAINT LUCIA | Succession | 14/05/1980 | |
| Sarawak | Extension | 22/03/1958 | 22/03/1958 |
| Sierra Leone | Extension | 16/12/1958 | |
| SIERRA LEONE | Succession | 15/06/1961 | |
| Singapore | Extension | 22/03/1958 | 22/03/1958 |
| SINGAPORE | Succession | 25/10/1965 | |
| Solomon Islands | Extension | 22/03/1982 | 22/03/1983 |
| Solomon Islands | Withdrawal | 20/09/1982 | 20/09/1983 |
| SOLOMON ISLANDS | Succession | 06/08/1985 | 06/08/1985 |
| SOMALI DEMOCRATIC REPUBLIC | Succession | 11/06/1975 | |
| SOMALIA | Succession | 18/11/1960 | |
| Somaliland Protectorate | Extension | 22/03/1958 | 22/03/1958 |
| Somaliland Protectorate | Withdrawal | 20/09/1982 | 20/09/1983 |
| SPAIN | Signature | 29/06/1949 | |
| SPAIN | Ratification | 05/05/1971 | |
| St Kitts Nevis Anguilla | Extension | 01/12/1965 | |
| St Kitts Nevis Anguilla | Withdrawal | 20/09/1982 | 20/09/1983 |
| St Lucia | Extension | 22/03/1958 | 22/03/1958 |
| St Vincent | Extension | 22/03/1958 | 22/03/1958 |
| St Vincent | Withdrawal | 20/09/1982 | 20/09/1983 |
| ST VINCENT AND THE GRENADINES | Ratification | 21/10/1998 | 31/05/1995 |
| SURINAME | Succession | 15/06/1976 | |
| Swaziland | Extension | 28/08/1964 | |
| SWAZILAND | Succession | 05/06/1981 | |
| SYRIA | Signature | 29/06/1949 | |
| SYRIA | Ratification | 07/06/1957 | |
| Tanganyika | Extension | 22/03/1958 | 22/03/1958 |
| TANGANYIKA | Succession | 30/01/1962 | |
| Tanganyika | Withdrawal | 20/09/1982 | 20/09/1983 |
| TANZANIA | Succession | 22/06/1964 | |
| Trinidad And Tobago | Extension | 22/03/1958 | 22/03/1958 |
| Trinidad And Tobago | Reservation | 22/03/1958 | |
| Trinidad And Tobago | Withdrawal | 20/09/1982 | 20/09/1983 |
| TURKEY | Signature | 29/06/1949 | |
| TURKEY | Ratification | 29/03/1961 | |
| Uganda | Extension | 22/03/1958 | 22/03/1958 |
| UGANDA | Succession | 04/06/1963 | |
| UNITED KINGDOM | Signature | 29/06/1949 | |
| UNITED KINGDOM | Ratification | 30/06/1950 | |
| UNITED KINGDOM | Declaration | 22/03/1958 | 22/03/1958 |
| UNITED KINGDOM | Declaration | 16/12/1958 | |
| UNITED KINGDOM | Declaration | 08/03/1960 | |
| UNITED KINGDOM | Declaration | 01/12/1965 | |
| UNITED KINGDOM | Declaration | 25/07/1977 | |
| UNITED KINGDOM | Declaration | 17/01/1979 | 17/01/1979 |
| UNITED KINGDOM | Withdrawal | 20/09/1982 | 20/09/1983 |
| URUGUAY | Signature | 29/06/1949 | |
| URUGUAY | Ratification | 18/03/1954 | |
| YEMEN | Signature | 29/06/1949 | |
| YEMEN | Ratification | 14/04/1969 | |
| ZAIRE | Succession | 20/09/1960 | |
| Zanzibar | Extension | 22/03/1958 | 22/03/1958 |
| Zanzibar | Reservation | 22/03/1958 | |
| Zanzibar | Withdrawal | 20/09/1982 | 20/09/1983 |