| Country | Action | Action Date | Effective Date |
|---|
| AUSTRALIA | Accession | 13/07/1965 | |
| AUSTRALIA | Reservation | 13/07/1965 | |
| AUSTRALIA | Withdrawal | 01/01/1975 | |
| BELGIUM | Signature | 29/06/1964 | |
| BELGIUM | Ratification | 03/05/1971 | |
| FRANCE | Signature | 29/06/1964 | |
| FRANCE | Ratification | 26/01/1967 | |
| GERMANY FEDERAL REPUBLIC | Signature | 29/06/1964 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 08/12/1966 | |
| ITALY | Signature | 29/06/1964 | |
| ITALY | Ratification | 05/03/1968 | |
| NETHERLANDS THE | Accession | 16/11/1965 | |
| NETHERLANDS THE | Reservation | 16/11/1965 | |
| UNITED KINGDOM | Signature | 29/06/1964 | |
| UNITED KINGDOM | Ratification | 14/09/1966 | |