| Country | Action | Action Date | Effective Date |
|---|
| BELGIUM | Definitive Signature | 16/12/1961 | |
| BELGIUM | Declaration | 16/12/1961 | |
| CYPRUS | Signature | 03/04/1978 | |
| CYPRUS | Declaration | 03/04/1978 | |
| DENMARK | Definitive Signature | 29/05/1968 | |
| DENMARK | Reservation | 29/05/1968 | |
| DENMARK | Declaration | 29/05/1968 | |
| FRANCE | Definitive Signature | 16/12/1961 | |
| FRANCE | Declaration | 16/12/1961 | |
| Gibraltar | Extension | 22/06/1964 | 23/07/1964 |
| GREECE | Definitive Signature | 16/12/1961 | |
| GREECE | Declaration | 16/12/1961 | |
| Guernsey, Bailiwick of | Extension | 22/06/1964 | 23/07/1964 |
| ICELAND | Signature | 13/01/1969 | |
| ICELAND | Reservation | 13/01/1969 | |
| ICELAND | Declaration | 13/01/1969 | |
| ICELAND | Ratification | 13/01/1969 | |
| IRELAND, REPUBLIC OF | Definitive Signature | 14/05/1962 | |
| IRELAND, REPUBLIC OF | Declaration | 14/05/1962 | |
| Isle of Man | Extension | 22/06/1964 | 23/07/1964 |
| ITALY | Signature | 16/12/1961 | |
| ITALY | Declaration | 16/12/1961 | |
| ITALY | Ratification | 06/08/1963 | |
| ITALY | Declaration | 06/08/1963 | |
| Jersey, Bailiwick of | Extension | 22/06/1964 | 23/07/1964 |
| LIECHTENSTEIN | Signature | 25/09/1998 | 26/10/1998 |
| LIECHTENSTEIN | Declaration | 25/09/1998 | |
| LUXEMBOURG | Signature | 16/12/1959 | |
| LUXEMBOURG | Ratification | 27/10/1965 | |
| MACEDONIA THE FYR OF | Signature | 24/02/1998 | |
| MACEDONIA THE FYR OF | Ratification | 24/02/1998 | 25/03/1998 |
| MACEDONIA THE FYR OF | Declaration | 04/03/1998 | |
| Malta | Extension | 22/06/1964 | 23/07/1964 |
| MALTA | Signature | 02/05/1966 | |
| MALTA | Declaration | 02/05/1966 | |
| MALTA | Ratification | 12/12/1966 | |
| NETHERLANDS THE | Signature | 16/12/1959 | |
| NETHERLANDS THE | Ratification | 04/07/1963 | |
| NETHERLANDS THE | Declaration | 10/01/1964 | |
| NORWAY | Definitive Signature | 29/05/1968 | |
| NORWAY | Reservation | 29/05/1968 | |
| NORWAY | Declaration | 29/05/1968 | |
| PORTUGAL | Signature | 18/06/1980 | |
| PORTUGAL | Ratification | 24/09/1984 | 25/10/1984 |
| PORTUGAL | Reservation | 24/09/1984 | |
| PORTUGAL | Withdrawal Res. | 29/01/1988 | |
| SPAIN | Signature | 31/07/1981 | |
| SPAIN | Ratification | 18/05/1982 | |
| SPAIN | Reservation | 18/05/1982 | |
| SWEDEN | Definitive Signature | 27/05/1968 | |
| SWEDEN | Reservation | 27/05/1968 | |
| SWEDEN | Declaration | 27/05/1968 | |
| SWITZERLAND | Signature | 29/12/1965 | |
| SWITZERLAND | Declaration | 29/12/1965 | |
| SWITZERLAND | Ratification | 20/12/1966 | |
| TURKEY | Definitive Signature | 14/09/1962 | |
| UKRAINE | Signature | 29/11/2005 | |
| UNITED KINGDOM | Declaration | 16/12/1961 | |
| UNITED KINGDOM | Signature | 16/12/1961 | |
| UNITED KINGDOM | Ratification | 22/06/1964 | |
| UNITED KINGDOM | Declaration | 22/06/1964 | |