| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| AUSTRALIA | Signature | 30/07/1964 | |
| AUSTRALIA | Ratification | 13/08/1968 | |
| BELGIUM | Signature | 30/07/1964 | |
| BELGIUM | Ratification | 10/03/1967 | |
| FRANCE | Signature | 28/07/1964 | |
| FRANCE | Ratification | 07/02/1968 | |
| GERMANY FEDERAL REPUBLIC | Definitive Signature | 23/07/1964 | |
| ITALY | Signature | 30/07/1964 | |
| NETHERLANDS THE | Signature | 28/07/1964 | |
| NETHERLANDS THE | Ratification | 05/03/1965 | |
| UNITED KINGDOM | Signature | 22/06/1964 | |
| UNITED KINGDOM | Definitive Signature | 22/06/1964 |