| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ALGERIA | Accession | 19/10/1962 | |
| ANGOLA | Succession | 04/06/1976 | |
| Anguilla | Extension | 08/03/1961 | |
| AUSTRALIA | Accession | 11/06/1992 | 11/12/1992 |
| AUSTRALIA | Declaration | 08/02/1996 | 08/02/1996 |
| AZERBAIJAN | Accession | 19/05/1992 | 19/05/1992 |
| BELGIUM | Signature | 18/06/1949 | |
| BELGIUM | Ratification | 30/03/1962 | |
| Bermuda | Extension | 08/03/1961 | |
| BOSNIA AND HERZEGOVINA | Accession | 02/06/1993 | 02/06/1993 |
| BRAZIL | Signature | 18/06/1949 | |
| BRAZIL | Ratification | 08/06/1954 | |
| British Virgin Islands | Extension | 08/03/1961 | |
| CHINA | Signature | 18/06/1949 | |
| CHINA | Ratification | 03/02/1971 | |
| CHINA | Declaration | 11/06/1984 | |
| CHINA | Declaration | 20/10/1999 | |
| COSTA RICA | Signature | 18/06/1949 | |
| COSTA RICA | Ratification | 02/06/1960 | |
| CROATIA | Accession | 08/10/1991 | 08/10/1991 |
| CUBA | Signature | 29/04/1952 | |
| CUBA | Ratification | 29/04/1952 | |
| CYPRUS | Ratification | 19/09/1995 | |
| DENMARK | Signature | 18/06/1949 | |
| DENMARK | Ratification | 30/09/1950 | |
| DENMARK | Declaration | 28/11/1960 | |
| DENMARK | Declaration | 17/06/1969 | |
| EGYPT | Ratification | 04/08/1982 | |
| Falkland Islands | Extension | 08/03/1961 | |
| Faroe Islands | Extension | 28/11/1960 | |
| FINLAND | Signature | 18/06/1949 | |
| FINLAND | Ratification | 22/12/1950 | |
| FRANCE | Signature | 18/06/1949 | |
| FRANCE | Ratification | 26/10/1951 | |
| FRANCE | Declaration | 27/04/1955 | |
| FRANCE | Declaration | 13/03/1990 | |
| French Guiana | Extension | 27/04/1955 | |
| GERMANY FEDERAL REPUBLIC | Signature | 18/06/1949 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 14/08/1974 | |
| GHANA | Signature | 18/06/1949 | |
| GHANA | Ratification | 18/03/1965 | 18/09/1965 |
| Gibraltar | Extension | 08/03/1961 | |
| GREECE | Ratification | 02/12/1986 | |
| Guadeloupe | Extension | 27/04/1955 | |
| Guernsey | Extension | 08/03/1997 | |
| GUINEA BISSAU | Succession | 21/02/1977 | |
| Hong Kong | Extension | 28/08/1964 | |
| Hong Kong | App. with mods. | 18/02/1977 | |
| Hong Kong | App. with mods. | 27/04/1984 | |
| IRAQ | Ratification | 01/12/1977 | 01/06/1978 |
| IRELAND, REPUBLIC OF | Signature | 18/06/1949 | |
| IRELAND, REPUBLIC OF | Ratification | 21/07/1952 | |
| Isle of Man | Extension | 13/02/1961 | |
| ISRAEL | Accession | 21/08/1980 | 21/02/1981 |
| ITALY | Accession | 23/06/1981 | 23/12/1981 |
| Jersey | Extension | 08/03/1960 | |
| KYRGYZSTAN | Accession | 31/03/1992 | 31/03/1992 |
| LIBERIA | Accession | 21/06/1977 | 21/12/1977 |
| LUXEMBOURG | Ratification | 15/02/1991 | |
| Martinique | Extension | 27/04/1955 | |
| Montserrat | Extension | 08/03/1961 | |
| NETHERLANDS THE | Signature | 18/06/1949 | |
| NETHERLANDS THE | Ratification | 17/06/1958 | |
| NETHERLANDS THE | Declaration | 15/05/1959 | |
| NEW ZEALAND | Accession | 31/05/1977 | 30/11/1977 |
| NEW ZEALAND | Declaration | 31/05/1977 | |
| NORWAY | Signature | 18/06/1949 | |
| NORWAY | Ratification | 29/06/1950 | |
| PANAMA | Signature | 18/06/1949 | |
| PANAMA | Ratification | 04/06/1971 | |
| POLAND | Signature | 18/06/1949 | |
| POLAND | Ratification | 13/04/1954 | |
| PORTUGAL | Ratification | 29/07/1952 | |
| PORTUGAL | Signature | 18/06/1955 | |
| PORTUGAL | Declaration | 04/10/1999 | |
| Reunion | Extension | 27/04/1955 | |
| SLOVENIA | Accession | 09/06/1992 | 09/06/1992 |
| Southern And Antarctic Territories | Extension | 13/03/1990 | |
| SOVIET UNION | Signature | 18/06/1949 | |
| SOVIET UNION | Ratification | 04/11/1969 | |
| SPAIN | Signature | 18/06/1949 | |
| SPAIN | Ratification | 14/07/1971 | |
| St Helena | Extension | 08/03/1961 | |
| SWEDEN | Signature | 18/06/1949 | |
| SWEDEN | Ratification | 18/07/1950 | |
| TAJIKISTAN | Accession | 26/11/1993 | 26/11/1993 |
| TURKEY | Ratification | 17/03/2005 | 17/03/2006 |
| UKRAINE | Signature | 18/06/1949 | |
| UKRAINE | Ratification | 17/06/1970 | |
| UNITED KINGDOM | Signature | 18/06/1949 | |
| UNITED KINGDOM | Ratification | 06/08/1953 | |
| UNITED KINGDOM | Declaration | 08/03/1960 | |
| YUGOSLAVIA | Accession | 25/11/1966 | |
| YUGOSLAVIA | Ratification | 24/11/2000 | 24/11/2000 |