| Country | Action | Action Date | Effective Date |
|---|
| ALGERIA | Signature | 01/07/1949 | |
| ALGERIA | Ratification | 19/10/1962 | |
| BANGLADESH | Accession | 22/06/1972 | |
| BELGIUM | Signature | 01/07/1949 | |
| BELGIUM | Ratification | 04/07/1958 | |
| BOLIVIA | Signature | 01/07/1949 | |
| BOLIVIA | Ratification | 19/07/1954 | |
| BRAZIL | Signature | 01/07/1949 | |
| BRAZIL | Ratification | 21/06/1957 | |
| BRAZIL | Withdrawal | 14/01/1972 | |
| COSTA RICA | Signature | 01/07/1949 | |
| COSTA RICA | Ratification | 02/06/1960 | |
| COTE D'IVOIRE | Succession | 28/07/1992 | |
| CUBA | Accession | 03/02/1953 | |
| DJIBOUTI | Succession | 03/08/1978 | |
| EGYPT | Signature | 01/07/1949 | |
| EGYPT | Ratification | 26/07/1960 | |
| ETHIOPIA | Accession | 30/04/1991 | |
| FINLAND | Signature | 01/07/1949 | |
| FINLAND | Ratification | 22/12/1951 | |
| FINLAND | Withdrawal | 31/12/1995 | |
| FRANCE | Signature | 01/07/1949 | |
| FRANCE | Ratification | 10/03/1953 | |
| GABON | Signature | 01/07/1949 | |
| GABON | Ratification | 13/06/1961 | |
| GERMANY FEDERAL REPUBLIC | Signature | 01/07/1949 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 08/09/1954 | |
| GERMANY FEDERAL REPUBLIC | Withdrawal | 10/07/1992 | 10/07/1993 |
| GHANA | Signature | 01/07/1949 | |
| GHANA | Ratification | 21/08/1973 | |
| GUATEMALA | Signature | 01/07/1949 | |
| GUATEMALA | Ratification | 03/01/1953 | |
| IRELAND, REPUBLIC OF | Accession | 13/06/1972 | |
| ISRAEL | Signature | 01/07/1949 | |
| ISRAEL | Ratification | 19/06/1961 | |
| ITALY | Signature | 01/07/1949 | |
| ITALY | Ratification | 09/01/1953 | |
| JAPAN | Signature | 01/07/1949 | |
| JAPAN | Ratification | 11/06/1956 | |
| LIBYA | Signature | 01/07/1949 | |
| LIBYA | Ratification | 20/06/1962 | |
| LUXEMBOURG | Signature | 01/07/1949 | |
| LUXEMBOURG | Ratification | 15/12/1958 | |
| MALTA | Accession | 09/06/1988 | 09/06/1989 |
| MAURITANIA | Signature | 01/07/1949 | |
| MAURITANIA | Ratification | 31/03/1964 | |
| MEXICO | Accession | 01/03/1991 | |
| NETHERLANDS THE | Signature | 01/07/1949 | |
| NETHERLANDS THE | Ratification | 20/05/1952 | |
| NORWAY | Signature | 01/07/1949 | |
| NORWAY | Ratification | 29/06/1950 | |
| NORWAY | Denunciation | 05/07/2002 | 05/02/2003 |
| PAKISTAN | Signature | 01/07/1949 | |
| PAKISTAN | Ratification | 26/05/1952 | |
| PANAMA | Signature | 01/07/1949 | |
| PANAMA | Ratification | 15/07/1971 | |
| POLAND | Signature | 01/07/1949 | |
| POLAND | Ratification | 25/10/1954 | |
| PORTUGAL | Accession | 07/06/1985 | 07/06/1986 |
| SENEGAL | Signature | 01/07/1949 | |
| SENEGAL | Ratification | 22/10/1962 | |
| SPAIN | Signature | 01/07/1949 | |
| SPAIN | Ratification | 05/05/1971 | |
| SRI LANKA | Signature | 01/07/1949 | |
| SRI LANKA | Ratification | 30/04/1958 | |
| SURINAME | Succession | 15/06/1976 | |
| SWAZILAND | Accession | 05/06/1981 | 05/06/1982 |
| SWEDEN | Signature | 01/07/1949 | |
| SWEDEN | Ratification | 18/07/1950 | |
| SWEDEN | Withdrawal | 31/12/1995 | |
| SYRIA | Signature | 01/07/1949 | |
| SYRIA | Ratification | 07/06/1957 | |
| TURKEY | Signature | 01/07/1949 | |
| TURKEY | Ratification | 23/01/1952 | |
| UNITED KINGDOM | | | |
| URUGUAY | Accession | 07/07/1976 | |