| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| AUSTRIA | Signature | 28/01/1964 | |
| AUSTRIA | Declaration | 28/01/1964 | |
| Bahamas | Extension | 22/03/1972 | |
| BELGIUM | Signature | 28/01/1964 | |
| BELGIUM | Ratification | 03/08/1966 | |
| British Solomon Islands | Extension | 22/03/1972 | |
| British Virgin Islands | Extension | 29/03/1973 | |
| Cayman Islands | Extension | 22/03/1972 | |
| DENMARK | Signature | 28/01/1964 | |
| DENMARK | Ratification | 04/09/1974 | |
| DENMARK | Declaration | 04/09/1974 | |
| Falkland Islands | Extension | 22/03/1972 | |
| FINLAND | Accession | 16/06/1972 | |
| FINLAND | Communication | 08/07/1998 | 02/04/1998 |
| FRANCE | Signature | 28/01/1964 | |
| FRANCE | Ratification | 09/03/1966 | |
| FRANCE | Declaration | 02/08/1967 | |
| GERMANY FEDERAL REPUBLIC | Signature | 28/04/1964 | |
| GERMANY FEDERAL REPUBLIC | Reservation | 28/04/1964 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 30/09/1975 | |
| GERMANY FEDERAL REPUBLIC | Declaration | 30/09/1975 | |
| Gibraltar | Extension | 03/12/1970 | |
| Gilbert And Ellice Islands | Extension | 22/03/1972 | |
| GREECE | Signature | 28/01/1964 | |
| GREECE | Reservation | 28/01/1964 | |
| GREECE | Ratification | 12/05/1970 | |
| Greenland | Extension | 04/09/1974 | |
| Guernsey, Bailiwick of | Extension | 21/08/1979 | |
| Hong Kong | Extension | 22/03/1972 | |
| Isle of Man | Extension | 28/06/1977 | |
| ITALY | Signature | 28/01/1964 | |
| ITALY | Ratification | 17/09/1975 | |
| Jersey, Bailiwick of | Extension | 06/03/1981 | |
| Land Berlin | Extension | 30/09/1975 | |
| LUXEMBOURG | Signature | 28/01/1964 | |
| Montserrat | Extension | 22/03/1972 | |
| NETHERLANDS THE | Signature | 28/01/1964 | |
| NETHERLANDS THE | Ratification | 28/12/1979 | |
| NORWAY | Signature | 28/01/1964 | |
| NORWAY | Reservation | 28/01/1964 | |
| NORWAY | Ratification | 02/07/1973 | |
| PORTUGAL | Signature | 28/01/1964 | |
| PORTUGAL | Ratification | 29/09/1977 | |
| SPAIN | Signature | 28/01/1964 | |
| SPAIN | Ratification | 30/04/1965 | |
| St Helena | Extension | 19/04/1972 | |
| SWEDEN | Reservation | 28/01/1964 | |
| SWEDEN | Signature | 28/01/1964 | |
| SWEDEN | Ratification | 01/04/1968 | |
| SWITZERLAND | Signature | 28/01/1964 | |
| TURKEY | Signature | 28/01/1964 | |
| TURKEY | Ratification | 05/04/1968 | |
| UNITED KINGDOM | Signature | 28/01/1964 | |
| UNITED KINGDOM | Ratification | 23/02/1966 | |
| UNITED KINGDOM | Declaration | 03/12/1970 | |
| UNITED KINGDOM | Declaration | 22/03/1972 | |
| UNITED KINGDOM | Declaration | 19/04/1972 | |
| UNITED KINGDOM | Declaration | 29/03/1973 | |
| UNITED KINGDOM | Declaration | 30/06/1977 | |
| UNITED KINGDOM | Declaration | 21/08/1979 | |
| UNITED KINGDOM | Declaration | 06/03/1981 |