| Country | Action | Action Date | Effective Date |
|---|
| AFGHANISTAN | Signature | 01/07/1949 | |
| AFGHANISTAN | Ratification | 07/01/1957 | |
| ALBANIA | Ratification | 02/08/2001 | 02/08/2002 |
| ALGERIA | Succession | 19/10/1962 | |
| ARGENTINA | Signature | 01/07/1949 | |
| ARGENTINA | Ratification | 24/09/1956 | |
| Aruba | App without mod | 01/01/1986 | 01/01/1986 |
| Aruba | Declaration | 01/01/1986 | 01/01/1986 |
| AUSTRIA | Signature | 01/07/1949 | |
| AUSTRIA | Ratification | 10/11/1951 | |
| AZERBAIJAN | Accession | 19/05/1992 | 19/05/1992 |
| 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 | 16/09/1983 | 16/09/1984 |
| BELGIUM | Signature | 01/07/1949 | |
| BELGIUM | Ratification | 22/04/1970 | |
| BELIZE | Succession | 15/12/1983 | 15/12/1983 |
| BENIN | Succession | 12/12/1960 | |
| BOLIVIA | Accession | 31/01/1977 | 31/01/1978 |
| BRAZIL | Signature | 01/07/1949 | |
| BRAZIL | Ratification | 25/04/1957 | |
| British Guiana | Extension | 22/03/1958 | 22/03/1958 |
| British Guiana | Withdrawal | 16/09/1983 | 16/09/1984 |
| British Honduras | Extension | 22/03/1958 | 22/03/1958 |
| British Honduras | Reservation | 22/03/1958 | |
| Brunei | Extension | 22/03/1958 | |
| Brunei | Withdrawal | 16/09/1983 | 16/09/1983 |
| BULGARIA | Signature | 01/07/1949 | |
| BULGARIA | Ratification | 07/11/1955 | |
| BYELORUSSIA S S R | Accession | 04/08/1961 | |
| CAMEROON | Accession | 07/06/1960 | |
| CENTRAL AFRICAN REPUBLIC | Succession | 17/10/1960 | |
| CHAD | Succession | 10/11/1960 | |
| COLOMBIA | Accession | 07/06/1963 | |
| Comoro Islands | Extension | 08/07/1958 | |
| COMOROS | Succession | 23/10/1979 | 23/10/1979 |
| CONGO | Succession | 10/11/1960 | |
| COSTA RICA | Accession | 02/06/1960 | |
| COTE D'IVOIRE | Succession | 21/11/1960 | |
| CUBA | Signature | 01/07/1949 | |
| CUBA | Ratification | 29/04/1952 | |
| Cyprus | Extension | 22/03/1958 | |
| CYPRUS | Succession | 23/09/1960 | |
| CZECH REPUBLIC | Succession | 01/01/1993 | 01/01/1993 |
| CZECHOSLOVAKIA | Accession | 11/01/1990 | 11/01/1991 |
| 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 |
| DOMINICAN REPUBLIC | Accession | 19/06/1973 | |
| ECUADOR | Signature | 01/07/1949 | |
| ECUADOR | Ratification | 06/07/1954 | |
| EGYPT | Signature | 01/07/1949 | |
| EGYPT | Ratification | 26/07/1960 | |
| FRANCE | Signature | 01/07/1949 | |
| FRANCE | Ratification | 15/10/1952 | |
| FRANCE | Declaration | 08/07/1958 | |
| French Cameroons | Extension | 08/07/1958 | 08/07/1958 |
| French Equatorial Africa | Extension | 08/07/1958 | |
| French Polynesia | Extension | 08/07/1958 | |
| French Somaliland | Extension | 08/07/1958 | |
| French Togoland | Extension | 08/07/1958 | |
| French West Africa | Extension | 08/07/1958 | |
| GABON | Succession | 14/10/1960 | |
| GERMAN DEMOCRATIC REPUBLIC | Accession | 07/05/1975 | |
| Gibraltar | Extension | 22/03/1959 | |
| Gibraltar | Withdrawal | 16/09/1983 | 16/09/1984 |
| GREECE | Signature | 01/07/1949 | |
| GREECE | Ratification | 16/06/1955 | |
| Grenada | Extension | 22/03/1958 | 22/03/1958 |
| GRENADA | Succession | 09/07/1979 | 09/07/1979 |
| GUATEMALA | Signature | 01/07/1949 | |
| GUATEMALA | Ratification | 13/02/1952 | |
| GUINEA | Succession | 21/01/1959 | |
| GUYANA | Succession | 08/06/1966 | |
| HONDURAS | Succession | 20/06/1960 | |
| Hong Kong | Extension | 08/10/1975 | |
| Hong Kong | App. with mods. | 06/11/1978 | |
| Hong Kong | Withdrawal | 16/09/1983 | 16/09/1984 |
| HUNGARY | Signature | 01/07/1949 | |
| HUNGARY | Ratification | 08/06/1956 | |
| IRAN | Signature | 01/07/1949 | |
| IRAN | Ratification | 10/06/1972 | |
| IRAQ | Accession | 12/05/1960 | |
| Isle of Man | Extension | 10/03/1956 | |
| Isle of Man | Withdrawal | 16/09/1983 | 16/09/1984 |
| ISRAEL | Signature | 01/07/1949 | |
| ISRAEL | Ratification | 12/01/1959 | |
| ITALY | Signature | 01/07/1949 | |
| ITALY | Ratification | 22/10/1952 | |
| Jersey | Extension | 10/03/1956 | |
| Jersey | Withdrawal | 16/09/1983 | 16/09/1984 |
| Kenya | Extension | 06/05/1958 | |
| Kenya | Reservation | 06/05/1958 | |
| Kenya | Withdrawal | 16/09/1983 | 16/09/1984 |
| KYRGYZSTAN | Succession | 31/03/1992 | 31/03/1992 |
| LEBANON | Accession | 01/06/1977 | 01/06/1978 |
| LIBYA | Accession | 20/06/1962 | |
| MADAGASCAR | Succession | 01/11/1960 | |
| Madagascar And Dependencies | Extension | 08/07/1958 | |
| MALAYA | Accession | 17/11/1961 | |
| MALAYSIA | Succession | 03/03/1964 | |
| MALI | Succession | 22/09/1960 | |
| Malta | Extension | 22/03/1958 | 22/03/1958 |
| MALTA | Succession | 04/01/1965 | |
| MAURITANIA | Succession | 20/06/1961 | |
| Mauritius | Extension | 22/03/1958 | 22/03/1958 |
| MAURITIUS | Succession | 02/12/1969 | |
| MEXICO | Signature | 01/07/1949 | |
| MEXICO | Ratification | 27/09/1955 | |
| Montserrat | Extension | 22/03/1958 | 22/03/1958 |
| Montserrat | Withdrawal | 16/09/1983 | 16/09/1984 |
| NETHERLANDS THE | Signature | 01/07/1949 | |
| 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 |
| New Caledonia | Extension | 08/07/1958 | |
| NICARAGUA | Accession | 01/03/1976 | 01/03/1977 |
| NIGER | Succession | 27/02/1961 | |
| Nigeria | Extension | 22/03/1958 | 22/03/1958 |
| NIGERIA | Succession | 17/10/1960 | |
| North Borneo | Extension | 22/03/1958 | 22/03/1958 |
| NORWAY | Signature | 01/07/1949 | |
| NORWAY | Ratification | 29/06/1950 | |
| PANAMA | Signature | 01/07/1949 | |
| PANAMA | Ratification | 19/06/1970 | |
| PARAGUAY | Accession | 21/03/1966 | |
| PHILIPPINES | Signature | 01/07/1949 | |
| PHILIPPINES | Ratification | 29/12/1953 | |
| POLAND | Signature | 01/07/1949 | |
| POLAND | Ratification | 25/10/1954 | |
| PORTUGAL | Accession | 24/02/1983 | 24/02/1984 |
| ROMANIA | Accession | 06/06/1973 | |
| SAINT LUCIA | Succession | 14/05/1980 | |
| Sarawak | Extension | 22/03/1958 | 22/03/1958 |
| SENEGAL | Succession | 04/11/1960 | |
| Sierra Leone | Extension | 22/03/1958 | 22/03/1958 |
| Sierra Leone | Reservation | 22/03/1958 | |
| SIERRA LEONE | Succession | 15/06/1961 | |
| SLOVAK REPUBLIC | Succession | 01/01/1993 | |
| Solomon Islands | Extension | 22/03/1958 | 22/03/1958 |
| Solomon Islands | Reservation | 22/03/1958 | |
| Solomon Islands | Withdrawal | 16/09/1983 | 16/09/1984 |
| SOLOMON ISLANDS | Succession | 06/08/1985 | 06/08/1985 |
| SOMALI DEMOCRATIC REPUBLIC | Succession | 11/06/1975 | |
| SOMALIA | Succession | 18/11/1960 | |
| SOVIET UNION | Accession | 04/05/1961 | |
| SPAIN | Signature | 01/07/1949 | |
| SPAIN | Ratification | 24/06/1958 | |
| SRI LANKA | Accession | 27/10/1983 | 27/10/1984 |
| St Lucia | Extension | 22/03/1958 | 22/03/1958 |
| St Pierre and Miquelon | Extension | 08/07/1958 | |
| St Vincent | Extension | 22/03/1958 | 22/03/1958 |
| St Vincent | Withdrawal | 16/09/1983 | 16/09/1984 |
| ST VINCENT AND THE GRENADINES | Ratification | 21/10/1998 | 31/05/1995 |
| SUDAN | Succession | 22/10/1970 | |
| SURINAME | Succession | 15/06/1976 | 15/06/1976 |
| Swaziland | Extension | 13/04/1964 | |
| SWAZILAND | Succession | 26/04/1978 | 26/04/1978 |
| SYRIA | Signature | 01/07/1949 | |
| SYRIA | Ratification | 07/06/1957 | |
| TAIWAN | Accession | 16/11/1962 | |
| TAIWAN | Withdrawal | 21/09/1984 | |
| TAJIKISTAN | Succession | 26/11/1993 | 26/11/1993 |
| Tanganyika | Extension | 22/03/1958 | 22/03/1958 |
| TANGANYIKA | Succession | 30/01/1962 | |
| TANZANIA | Succession | 22/06/1964 | |
| TOGO | Succession | 07/06/1960 | |
| Trinidad | Extension | 19/06/1958 | |
| Trinidad | Reservation | 19/06/1958 | |
| Trinidad | Withdrawal | 16/09/1983 | 16/09/1983 |
| TUNISIA | Succession | 28/05/1958 | |
| TURKEY | Accession | 29/03/1961 | |
| Uganda | Extension | 22/03/1958 | 22/03/1958 |
| UGANDA | Succession | 04/06/1963 | |
| UKRAINE | Succession | 04/08/1961 | |
| UNITED KINGDOM | Signature | 01/07/1949 | |
| UNITED KINGDOM | Ratification | 24/09/1951 | |
| UNITED KINGDOM | Declaration | 10/03/1956 | |
| UNITED KINGDOM | Declaration | 22/03/1958 | 22/03/1958 |
| UNITED KINGDOM | Declaration | 06/05/1958 | |
| UNITED KINGDOM | Declaration | 16/06/1958 | |
| UNITED KINGDOM | Declaration | 08/03/1960 | |
| UNITED KINGDOM | Declaration | 13/04/1964 | |
| UNITED KINGDOM | Declaration | 11/12/1964 | |
| UNITED KINGDOM | Declaration | 08/10/1975 | |
| UNITED KINGDOM | Declaration | 06/11/1978 | |
| UNITED KINGDOM | Withdrawal | 16/09/1983 | 16/09/1984 |
| UNITED KINGDOM | Declaration | 13/05/1993 | 13/05/1994 |
| UNITED KINGDOM | Declaration | 11/08/1993 | 11/08/1994 |
| UPPER VOLTA | Succession | 21/11/1960 | |
| URUGUAY | Signature | 01/07/1949 | |
| URUGUAY | Ratification | 18/03/1954 | |
| VENEZUELA | Accession | 10/08/1982 | 10/08/1982 |
| YEMEN | Accession | 14/04/1969 | |
| ZAIRE | Accession | 16/06/1969 | |
| ZAMBIA | Succession | 23/10/1979 | 23/10/1980 |
| Zanzibar | Extension | 22/03/1958 | 22/03/1958 |