| Country | Action | Action Date | Effective Date |
|---|
| BELGIUM | Signature | 13/12/1960 | |
| BELGIUM | Ratification | 13/03/1962 | |
| BELGIUM | Notification | 14/04/2004 | 01/01/1900 |
| BOSNIA AND HERZEGOVINA | Ratification | 21/01/2004 | 01/01/1900 |
| FRANCE | Signature | 13/12/1960 | |
| FRANCE | Ratification | 28/02/1963 | |
| GERMANY | Signature | 13/12/1960 | |
| GERMANY | Ratification | 08/02/1963 | |
| IRELAND, REPUBLIC OF | Accession | 23/12/1964 | |
| IRELAND, REPUBLIC OF | Declaration | 23/12/1964 | |
| LUXEMBOURG | Signature | 13/12/1960 | |
| LUXEMBOURG | Ratification | 06/02/1962 | |
| MACEDONIA THE FYR OF | Accession | 28/09/1998 | 01/11/1998 |
| MALTA | Accession | 08/05/1989 | 01/07/1989 |
| NETHERLANDS THE | Signature | 13/12/1960 | |
| NETHERLANDS THE | Ratification | 10/10/1962 | |
| NORWAY | Accession | 21/01/1994 | 01/03/1994 |
| TURKEY | Accession | 12/01/1989 | 01/03/1989 |
| UNITED KINGDOM | Signature | 13/12/1960 | |
| UNITED KINGDOM | Ratification | 03/08/1962 | |