| Country | Action | Action Date | Effective Date |
|---|
| BELGIUM | Signature | 02/02/1965 | |
| BELGIUM | Ratification | 07/02/1968 | 08/03/1968 |
| BELGIUM | Declaration | 17/04/1968 | |
| CYPRUS | Signature | 23/09/1969 | |
| CYPRUS | Ratification | 21/01/1970 | 22/02/1970 |
| DENMARK | Definitive Signature | 22/01/1965 | 24/03/1965 |
| FRANCE | Definitive Signature | 22/01/1965 | 24/03/1965 |
| GERMANY FEDERAL REPUBLIC | Signature | 22/01/1965 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 08/09/1967 | 09/10/1967 |
| GREECE | Signature | 30/11/1965 | |
| LUXEMBOURG | Signature | 22/01/1965 | |
| NORWAY | Signature | 29/06/1965 | |
| NORWAY | Ratification | 09/07/1968 | 10/08/1968 |
| SPAIN | Accession | 22/09/1971 | 23/10/1971 |
| SWEDEN | Definitive Signature | 22/01/1965 | 24/03/1965 |
| TURKEY | Signature | 24/04/1974 | |
| TURKEY | Ratification | 19/12/1975 | 20/01/1976 |
| UNITED KINGDOM | Signature | 23/02/1965 | |
| UNITED KINGDOM | Definitive Signature | 23/02/1965 | 24/03/1965 |