| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| AUSTRIA | Definitive Signature | 23/11/1962 | |
| BELGIUM | Definitive Signature | 23/11/1962 | |
| DENMARK | Definitive Signature | 14/05/1963 | |
| FRANCE | Definitive Signature | 23/11/1962 | |
| GERMANY FEDERAL REPUBLIC | Definitive Signature | 19/04/1963 | |
| ITALY | Signature | 23/11/1962 | |
| NETHERLANDS THE | Definitive Signature | 23/11/1962 | |
| SPAIN | Definitive Signature | 23/11/1962 | |
| SWEDEN | Definitive Signature | 23/11/1962 | |
| SWITZERLAND | Definitive Signature | 23/11/1962 | |
| UNITED KINGDOM | Signature | 23/11/1962 | |
| UNITED KINGDOM | Definitive Signature | 23/11/1962 |