| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ALBANIA | Declaration | 18/01/2005 | 18/01/2006 |
| ALBANIA | Ratification | 18/01/2006 | 18/01/2007 |
| Anguilla | Extension | 16/12/1958 | |
| AUSTRIA | Ratification | 04/11/1969 | |
| BARBADOS | Ratification | 11/07/1972 | |
| BELGIUM | Ratification | 26/11/1959 | |
| Bermuda | Extension | 16/12/1958 | |
| BOLIVIA | Ratification | 31/01/1977 | 31/01/1978 |
| BOLIVIA | Declaration | 31/01/1977 | 31/01/1978 |
| BOSNIA AND HERZEGOVINA | Ratification | 02/06/1993 | 02/06/1993 |
| British Virgin Islands | Extension | 16/12/1958 | |
| COSTA RICA | Ratification | 16/03/1972 | |
| CROATIA | Ratification | 08/10/1991 | 08/10/1991 |
| Cyprus | Extension | 08/01/1960 | |
| CYPRUS | Ratification | 03/09/1991 | 03/09/1992 |
| CZECH REPUBLIC | Ratification | 01/01/1993 | 01/01/1993 |
| DENMARK | Ratification | 15/08/1955 | |
| ECUADOR | Ratification | 25/10/1974 | 25/10/1975 |
| Falkland Islands | Extension | 16/12/1958 | |
| FRANCE | Ratification | 14/06/1974 | 14/06/1975 |
| GERMANY FEDERAL REPUBLIC | Ratification | 21/02/1958 | |
| Gibraltar | Extension | 16/12/1958 | |
| GREECE | Ratification | 16/06/1955 | |
| Guernsey | Extension | 08/03/1960 | |
| Hong Kong | Extension | 16/12/1958 | |
| ICELAND | Ratification | 20/02/1961 | |
| IRELAND, REPUBLIC OF | Ratification | 17/06/1968 | |
| Isle of Man | Extension | 22/09/1960 | |
| ISRAEL | Ratification | 16/12/1955 | |
| ITALY | Ratification | 08/06/1956 | |
| JAPAN | Ratification | 02/02/1976 | 02/02/1977 |
| Jersey | Extension | 08/03/1960 | |
| LIBYA | Ratification | 19/06/1975 | 19/06/1976 |
| LUXEMBOURG | Ratification | 31/08/1964 | |
| MAURITANIA | Ratification | 15/07/1968 | |
| MEXICO | Ratification | 12/10/1961 | 12/10/1962 |
| Montserrat | Extension | 16/12/1958 | |
| NETHERLANDS THE | Ratification | 11/10/1962 | |
| NIGER | Ratification | 09/09/1966 | |
| NORWAY | Ratification | 30/09/1954 | |
| PERU | Ratification | 23/08/1961 | |
| PORTUGAL | Ratification | 17/03/1994 | 17/03/1995 |
| SENEGAL | Ratification | 22/10/1962 | |
| SLOVAK REPUBLIC | Succession | 01/01/1993 | 01/01/1993 |
| SLOVENIA | Ratification | 29/05/1992 | |
| SPAIN | Ratification | 29/06/1988 | 29/06/1989 |
| St Helena | Extension | 16/12/1958 | |
| SWEDEN | Ratification | 12/08/1953 | |
| SWEDEN | Extension | 20/06/1962 | |
| SWITZERLAND | Ratification | 18/10/1977 | 18/10/1978 |
| TURKEY | Ratification | 29/01/1975 | 29/01/1976 |
| UNITED KINGDOM | Ratification | 27/04/1954 | |
| UNITED KINGDOM | Declaration | 27/04/1954 | |
| VENEZUELA | Accession | 05/11/1982 | |
| YUGOSLAVIA | Ratification | 20/01/1955 | |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Ratification | 24/11/2000 | 24/11/2000 |
| ZAIRE | Accession | 03/04/1987 | 03/04/1988 |