| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| BELGIUM | Signature | 24/01/1959 | |
| BELGIUM | Ratification | 15/09/1961 | |
| BELGIUM | Declaration | 15/09/1961 | |
| BELGIUM | Denunciation | 30/12/1976 | 30/12/1977 |
| BULGARIA | Accession | 01/09/1976 | |
| BULGARIA | Denunciation | 24/07/1984 | 29/04/1983 |
| CUBA | Accession | 09/12/1976 | |
| CUBA | Declaration | 09/12/1976 | |
| DENMARK | Signature | 24/01/1959 | |
| DENMARK | Ratification | 14/07/1960 | |
| DENMARK | Denunciation | 29/12/1976 | 29/12/1977 |
| Faroe Islands | Denunciation | 01/11/1982 | 01/11/1983 |
| FINLAND | Accession | 22/06/1976 | |
| FINLAND | Denunciation | 06/01/1981 | 06/01/1982 |
| FRANCE | Signature | 24/01/1959 | |
| FRANCE | Ratification | 20/03/1962 | |
| FRANCE | Denunciation | 31/12/1976 | 31/12/1977 |
| GERMAN DEMOCRATIC REPUBLIC | Accession | 26/06/1974 | |
| GERMAN DEMOCRATIC REPUBLIC | Denunciation | 28/09/1981 | 28/09/1982 |
| GERMANY FEDERAL REPUBLIC | Signature | 24/01/1959 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 27/06/1963 | |
| GERMANY FEDERAL REPUBLIC | Denunciation | 07/02/1977 | 07/02/1978 |
| Gibraltar | Extension | 07/01/1960 | |
| ICELAND | Signature | 24/01/1959 | |
| ICELAND | Ratification | 12/04/1960 | |
| ICELAND | Denunciation | 11/03/1981 | 11/03/1982 |
| IRELAND, REPUBLIC OF | Signature | 24/01/1959 | |
| IRELAND, REPUBLIC OF | Ratification | 02/10/1962 | |
| IRELAND, REPUBLIC OF | Denunciation | 24/02/1977 | 24/02/1978 |
| NETHERLANDS THE | Signature | 24/01/1959 | |
| NETHERLANDS THE | Ratification | 21/04/1960 | |
| NETHERLANDS THE | Statement | 21/04/1960 | |
| NETHERLANDS THE | Denunciation | 29/12/1976 | 29/12/1977 |
| NORWAY | Signature | 24/01/1959 | |
| NORWAY | Ratification | 12/01/1960 | |
| NORWAY | Denunciation | 17/08/1976 | 01/07/1978 |
| POLAND | Ratification | 22/02/1961 | |
| POLAND | Denunciation | 29/04/1983 | 29/04/1984 |
| POLAND | Signature | 24/01/1995 | |
| PORTUGAL | Signature | 24/01/1959 | |
| PORTUGAL | Ratification | 13/12/1962 | |
| PORTUGAL | Denunciation | 30/11/1982 | 30/11/1983 |
| SOVIET UNION | Signature | 24/01/1959 | |
| SOVIET UNION | Ratification | 25/08/1960 | |
| SOVIET UNION | Denunciation | 22/04/1981 | 23/04/1982 |
| SPAIN | Signature | 24/01/1959 | |
| SPAIN | Ratification | 07/11/1960 | |
| SPAIN | Denunciation | 18/12/1980 | 18/12/1981 |
| SPAIN | Notification | 16/12/1981 | |
| SPAIN | Denunciation | 24/02/1984 | 24/02/1985 |
| SWEDEN | Signature | 24/01/1959 | |
| SWEDEN | Ratification | 31/03/1960 | |
| SWEDEN | Denunciation | 13/09/1978 | 13/09/1979 |
| UNITED KINGDOM | Signature | 24/01/1959 | |
| UNITED KINGDOM | Ratification | 27/08/1959 | |
| UNITED KINGDOM | Denunciation | 31/12/1976 | 31/12/1977 |
| UNITED STATES OF AMERICA | Withdrawal | 31/12/1976 | 31/12/1976 |