| Country | Action | Action Date | Effective Date |
|---|
| Antilles | Extension | 25/09/1962 | |
| Aruba | Extension | 01/01/1986 | |
| AUSTRIA | Signature | 25/04/1960 | |
| AUSTRIA | Ratification | 25/07/1961 | 24/08/1961 |
| BELGIUM | Signature | 28/04/1960 | |
| BELGIUM | Ratification | 06/10/1961 | 05/11/1961 |
| DENMARK | Signature | 04/11/1960 | |
| DENMARK | Ratification | 13/09/1962 | 13/10/1962 |
| FINLAND | Signature | 22/04/1960 | |
| FRANCE | Signature | 22/04/1960 | |
| FRANCE | Ratification | 29/11/1962 | 29/12/1962 |
| GERMANY FEDERAL REPUBLIC | Signature | 28/03/1961 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 17/07/1962 | 16/08/1962 |
| GERMANY FEDERAL REPUBLIC | Declaration | 17/07/1962 | |
| GREECE | Signature | 22/06/1961 | |
| GREECE | Ratification | 29/03/1967 | 28/04/1967 |
| IRELAND, REPUBLIC OF | Signature | 22/04/1960 | |
| IRELAND, REPUBLIC OF | Ratification | 14/09/1967 | 14/10/1967 |
| ITALY | Signature | 22/04/1960 | |
| ITALY | Ratification | 19/04/1968 | 19/05/1968 |
| Land Berlin | Extension | 10/07/1962 | |
| LUXEMBOURG | Signature | 22/04/1960 | |
| LUXEMBOURG | Ratification | 21/04/1965 | 22/03/1965 |
| NETHERLANDS THE | Signature | 02/09/1960 | |
| NETHERLANDS THE | Approval | 25/09/1962 | 25/10/1962 |
| NETHERLANDS THE | Declaration | 25/09/1962 | |
| NETHERLANDS THE | Notification | 30/12/1985 | |
| NORWAY | Signature | 21/02/1962 | |
| NORWAY | Ratification | 11/04/1962 | 11/05/1962 |
| PORTUGAL | Signature | 22/04/1960 | |
| PORTUGAL | Ratification | 04/06/1968 | 04/07/1968 |
| SPAIN | Signature | 22/04/1960 | |
| SPAIN | Ratification | 01/08/1981 | 31/08/1961 |
| SWEDEN | Signature | 22/04/1960 | |
| SWEDEN | Approval | 07/06/1961 | 24/08/1968 |
| SWITZERLAND | Signature | 22/04/1960 | |
| SWITZERLAND | Ratification | 20/09/1961 | |
| UNITED KINGDOM | Signature | 22/04/1960 | |
| UNITED KINGDOM | Ratification | 05/12/1961 | |
| UNITED KINGDOM | Ratification | 05/12/1961 | 04/12/1962 |