| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| FRANCE | Definitive Signature | 29/08/1960 | |
| GERMANY FEDERAL REPUBLIC | Definitive Signature | 29/08/1960 | |
| UNITED KINGDOM | Signature | 29/08/1960 | |
| UNITED KINGDOM | Definitive Signature | 29/08/1960 | |
| UNITED STATES OF AMERICA | Definitive Signature | 29/08/1960 |