| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| BELGIUM | Signature | 29/05/1962 | |
| FRANCE | Signature | 13/02/1962 | |
| FRANCE | Ratification | 28/03/1963 | |
| GERMANY FEDERAL REPUBLIC | Signature | 16/03/1962 | |
| LUXEMBOURG | Signature | 01/03/1962 | |
| NETHERLANDS THE | Signature | 12/04/1962 | |
| NETHERLANDS THE | Ratification | 01/07/1963 | |
| POLAND | Signature | 17/05/1962 | |
| POLAND | Declaration | 17/05/1962 | |
| SPAIN | Reservation | 09/07/1963 | |
| SPAIN | Accession | 09/07/1963 | |
| SPAIN | Withdrawal Res. | 27/03/1966 | |
| SWEDEN | Signature | 19/06/1962 | |
| UNITED KINGDOM | Signature | 19/01/1962 | |
| YUGOSLAVIA | Accession | 25/09/1963 |