| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ALGERIA | Accession | 10/08/1964 | 08/11/1964 |
| ANGOLA | Ratification | 24/02/1998 | 25/05/1998 |
| ARGENTINA | Signature | 19/06/1948 | |
| ARGENTINA | Ratification | 31/01/1958 | 01/05/1958 |
| AUSTRALIA | Signature | 09/06/1950 | |
| AZERBAIJAN | Adherence | 23/03/2000 | 21/06/2000 |
| BAHRAIN | Adherence | 03/03/1997 | 01/06/1997 |
| BANGLADESH | Accession | 06/01/1988 | 05/04/1988 |
| BELGIUM | Signature | 19/06/1948 | |
| BOLIVIA | Adherence | 09/07/1998 | 07/10/1998 |
| BOSNIA AND HERZEGOVINA | Succession | 07/03/1995 | 06/03/1992 |
| BRAZIL | Signature | 19/06/1948 | |
| BRAZIL | Ratification | 03/07/1953 | 01/10/1953 |
| CAMEROON | Accession | 23/07/1969 | 21/10/1969 |
| CENTRAL AFRICAN REPUBLIC | Accession | 02/06/1969 | 31/08/1969 |
| CHAD | Accession | 14/02/1974 | 15/05/1974 |
| CHILE | Signature | 19/06/1948 | |
| CHILE | Ratification | 19/12/1955 | 18/03/1956 |
| CHINA | Signature | 19/06/1948 | |
| CHINA | Statement | 07/12/1999 | |
| CHINA | Statement | 09/12/1999 | |
| CHINA | Adherence | 20/04/2000 | 27/07/2000 |
| COLOMBIA | Signature | 19/06/1948 | |
| CONGO, PEOPLES REPUBLIC OF | Accession | 03/05/1982 | 01/08/1982 |
| COTE D'IVOIRE | Accession | 23/08/1965 | 21/11/1965 |
| CROATIA | Accession | 05/10/1993 | 08/10/1991 |
| CUBA | Signature | 20/06/1949 | |
| CUBA | Ratification | 20/06/1961 | 18/09/1961 |
| CZECH REPUBLIC | Ratification | 24/08/1998 | 22/11/1998 |
| DENMARK | Signature | 03/01/1949 | |
| DENMARK | Ratification | 18/01/1963 | 18/04/1963 |
| DOMINICAN REPUBLIC | Signature | 19/06/1948 | |
| ECUADOR | Accession | 14/07/1958 | 12/10/1958 |
| EGYPT | Accession | 10/09/1969 | 09/12/1969 |
| EL SALVADOR | Accession | 14/08/1958 | 12/11/1958 |
| ESTONIA | Accession | 31/12/1993 | 31/03/1994 |
| ETHIOPIA | Accession | 07/06/1979 | 05/09/1979 |
| FRANCE | Signature | 19/06/1948 | |
| FRANCE | Ratification | 27/01/1964 | 27/05/1964 |
| GABON | Accession | 14/01/1970 | 14/04/1970 |
| GAMBIA THE | Adherence | 20/06/2000 | 18/09/2000 |
| GERMANY FEDERAL REPUBLIC | Accession | 07/07/1959 | 05/10/1959 |
| GHANA | Adherence | 15/07/1997 | 13/10/1997 |
| GREECE | Signature | 19/06/1948 | |
| GREECE | Ratification | 23/02/1971 | 24/05/1971 |
| GRENADA | Accession | 28/08/1985 | 26/11/1985 |
| GUATEMALA | Accession | 09/08/1988 | 07/11/1988 |
| GUINEA | Accession | 13/08/1980 | 11/11/1980 |
| HAITI | Accession | 24/03/1961 | 22/06/1961 |
| HUNGARY | Accession | 21/05/1993 | 19/08/1993 |
| ICELAND | Signature | 19/06/1948 | |
| ICELAND | Ratification | 06/02/1967 | 07/05/1967 |
| IRAN | Signature | 18/03/1950 | |
| IRAQ | Accession | 12/01/1981 | 12/04/1981 |
| IRELAND, REPUBLIC OF | Signature | 30/11/1948 | |
| ITALY | Signature | 19/06/1948 | |
| ITALY | Ratification | 06/12/1960 | 06/03/1961 |
| KENYA | Accession | 15/01/1997 | 15/04/1997 |
| KUWAIT | Accession | 27/11/1979 | 25/02/1980 |
| KUWAIT | Declaration | 27/11/1979 | |
| KYRGYZSTAN | Adherence | 28/02/2000 | 28/05/2000 |
| Land Berlin | Extension | 07/07/1959 | 05/10/1959 |
| LAOS | Accession | 04/06/1956 | 02/09/1956 |
| LEBANON | Accession | 11/04/1969 | 10/07/1969 |
| LIBYA | Accession | 05/03/1973 | 04/06/1973 |
| LUXEMBOURG | Accession | 16/12/1975 | 15/03/1976 |
| MACEDONIA THE FYR OF | Accession | 30/08/1994 | 17/09/1991 |
| MADAGASCAR | Accession | 09/01/1979 | 09/04/1979 |
| MALDIVES | Ratification | 05/09/1995 | 04/12/1995 |
| MALI | Accession | 28/12/1961 | 28/03/1962 |
| MAURITANIA | Accession | 23/07/1962 | 21/10/1962 |
| MAURITIUS | Accession | 17/04/1991 | 16/07/1991 |
| MEXICO | Signature | 19/06/1948 | |
| MEXICO | Ratification | 05/04/1950 | 17/09/1953 |
| MEXICO | Reservation | 05/04/1950 | |
| MONACO | Accession | 14/12/1994 | 14/03/1995 |
| MOROCCO | Accession | 13/12/1993 | 13/03/1994 |
| NETHERLANDS THE | Signature | 19/06/1948 | |
| NETHERLANDS THE | Ratification | 01/09/1959 | 30/11/1959 |
| NETHERLANDS THE | Declaration | 01/09/1959 | |
| NETHERLANDS THE | Declaration | 21/07/1986 | |
| NIGER | Accession | 27/12/1962 | 27/03/1963 |
| NIGERIA | Ratification | 10/05/2002 | 08/08/2002 |
| NORWAY | Signature | 03/01/1949 | |
| NORWAY | Ratification | 05/03/1954 | 03/06/1954 |
| OMAN | Accession | 19/03/1992 | 17/06/1992 |
| PAKISTAN | Signature | 21/08/1951 | |
| PAKISTAN | Ratification | 19/06/1953 | 17/09/1953 |
| PANAMA | Ratification | 26/10/1998 | 24/01/1999 |
| PARAGUAY | Accession | 26/09/1969 | 25/12/1969 |
| PERU | Signature | 19/06/1948 | |
| PHILIPPINES | Accession | 22/02/1978 | 23/05/1978 |
| PORTUGAL | Signature | 19/06/1948 | |
| PORTUGAL | Ratification | 12/12/1985 | 12/03/1986 |
| ROMANIA | Accession | 26/10/1994 | 24/01/1995 |
| RWANDA | Accession | 17/05/1971 | 15/08/1971 |
| SENEGAL | Ratification | 20/12/1995 | 19/03/1996 |
| SEYCHELLES | Accession | 16/01/1979 | 16/04/1979 |
| SLOVENIA | Adherence | 09/04/1997 | 08/07/1997 |
| SOUTH AFRICA | Ratification | 21/09/1998 | 20/12/1998 |
| SRI LANKA | Accession | 24/01/1994 | 24/04/1994 |
| SURINAME | Ratification | 27/03/2003 | 01/01/1900 |
| SWEDEN | Signature | 03/01/1949 | |
| SWEDEN | Communication | 08/11/1955 | |
| SWEDEN | Ratification | 16/11/1955 | 14/02/1956 |
| SWITZERLAND | Signature | 19/06/1948 | |
| SWITZERLAND | Ratification | 03/10/1960 | 01/01/1961 |
| TAJIKISTAN | Ratification | 20/03/1996 | 18/06/1996 |
| THAILAND | Accession | 10/10/1967 | 08/01/1968 |
| TOGO | Accession | 02/07/1980 | 30/09/1980 |
| TUNISIA | Accession | 04/05/1966 | 02/08/1966 |
| TURKMENISTAN | Accession | 16/09/1993 | 15/12/1993 |
| UNITED KINGDOM | Signature | 19/06/1948 | |
| UNITED STATES OF AMERICA | Signature | 19/06/1948 | |
| UNITED STATES OF AMERICA | Ratification | 06/09/1949 | 17/09/1953 |
| UNITED STATES OF AMERICA | Statement | 01/07/1950 | |
| URUGUAY | Accession | 21/08/1985 | 19/11/1985 |
| UZBEKISTAN | Accession | 08/07/1997 | 06/08/1997 |
| VENEZUELA | Signature | 19/06/1948 | |
| VIETNAM | Accession | 18/06/1997 | 16/09/1997 |
| YUGOSLAVIA | Accession | 16/10/1991 | 14/01/1992 |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Succession | 06/09/2001 | 27/04/1992 |
| ZIMBABWE | Accession | 06/02/1987 | 07/05/1987 |