| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| BELGIUM | Signature | 08/04/1965 | |
| BELGIUM | Ratification | 30/06/1967 | |
| FRANCE | Signature | 08/04/1965 | |
| FRANCE | Ratification | 01/07/1967 | |
| GERMANY FEDERAL REPUBLIC | Signature | 08/04/1965 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 01/07/1967 | |
| LUXEMBOURG | Signature | 08/04/1965 | |
| LUXEMBOURG | Ratification | 01/07/1967 | |
| NETHERLANDS THE | Signature | 08/04/1965 | |
| NETHERLANDS THE | Ratification | 01/07/1967 | |
| UNITED KINGDOM |