| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| ALGERIA | Accession | 30/10/1969 | |
| AUSTRIA | Signature | 26/02/1966 | |
| AUSTRIA | Ratification | 02/07/1969 | 07/09/1973 |
| AUSTRIA | Reservation | 02/07/1969 | |
| BELGIUM | Signature | 26/02/1966 | |
| BELGIUM | Ratification | 14/10/1968 | |
| BULGARIA | Signature | 26/02/1966 | |
| BULGARIA | Ratification | 21/10/1971 | |
| BULGARIA | Reservation | 21/10/1971 | |
| CZECHOSLOVAKIA | Declaration | 01/01/1905 | |
| CZECHOSLOVAKIA | Signature | 26/02/1966 | |
| CZECHOSLOVAKIA | Ratification | 14/11/1966 | |
| CZECHOSLOVAKIA | Reservation | 14/11/1966 | |
| DENMARK | Signature | 26/02/1966 | |
| DENMARK | Ratification | 23/02/1967 | |
| DENMARK | Reservation | 23/02/1967 | |
| FINLAND | Signature | 26/02/1966 | |
| FINLAND | Ratification | 28/08/1970 | |
| FINLAND | Reservation | 28/08/1970 | |
| FRANCE | Signature | 26/02/1966 | |
| FRANCE | Ratification | 08/02/1968 | |
| GERMAN DEMOCRATIC REPUBLIC | Accession | 08/06/1972 | 01/05/1973 |
| GERMAN DEMOCRATIC REPUBLIC | Declaration | 08/06/1972 | |
| GERMANY FEDERAL REPUBLIC | Accession | 28/05/1974 | 29/06/1974 |
| GERMANY FEDERAL REPUBLIC | Reservation | 28/05/1974 | |
| GREECE | Accession | 05/11/1973 | 23/12/1973 |
| GREECE | Reservation | 05/11/1973 | |
| HUNGARY | Accession | 08/08/1973 | 07/10/1973 |
| HUNGARY | Reservation | 08/08/1973 | |
| IRAN | Accession | 31/03/1977 | 07/05/1977 |
| IRAQ | Accession | 02/06/1969 | |
| IRAQ | Reservation | 02/06/1969 | |
| IRELAND, REPUBLIC OF | Accession | 01/11/1974 | 19/12/1974 |
| ITALY | Signature | 26/02/1966 | |
| ITALY | Ratification | 30/03/1976 | 01/07/1976 |
| LEBANON | Signature | 26/02/1966 | |
| LEBANON | Ratification | 22/02/1983 | 01/04/1983 |
| LIECHTENSTEIN | Signature | 26/02/1967 | |
| LIECHTENSTEIN | Ratification | 05/10/1967 | |
| LUXEMBOURG | Signature | 26/02/1966 | |
| LUXEMBOURG | Ratification | 20/05/1970 | |
| MOROCCO | Signature | 26/02/1966 | |
| MOROCCO | Ratification | 28/06/1973 | 01/09/1973 |
| NETHERLANDS THE | Signature | 26/02/1966 | |
| NETHERLANDS THE | Ratification | 09/05/1967 | |
| NORWAY | Signature | 26/02/1966 | |
| NORWAY | Ratification | 16/08/1971 | |
| NORWAY | Reservation | 16/08/1971 | |
| POLAND | Declaration | 01/01/1905 | |
| POLAND | Signature | 26/02/1966 | |
| POLAND | Ratification | 25/02/1971 | |
| POLAND | Reservation | 25/02/1971 | |
| PORTUGAL | Signature | 26/02/1966 | |
| PORTUGAL | Ratification | 20/10/1971 | |
| PORTUGAL | Reservation | 20/10/1971 | |
| ROMANIA | Signature | 26/02/1966 | |
| ROMANIA | Ratification | 27/11/1974 | 01/01/1975 |
| ROMANIA | Reservation | 27/11/1974 | |
| SPAIN | Signature | 26/02/1966 | |
| SPAIN | Ratification | 04/08/1967 | |
| SWEDEN | Accession | 21/05/1976 | 28/06/1976 |
| SWITZERLAND | Signature | 21/01/1969 | |
| SWITZERLAND | Ratification | 21/01/1969 | |
| SYRIA | Signature | 26/02/1966 | |
| SYRIA | Ratification | 09/12/1968 | |
| TUNISIA | Signature | 26/02/1966 | |
| TUNISIA | Ratification | 27/08/1974 | 01/10/1974 |
| TUNISIA | Reservation | 27/08/1974 | |
| TURKEY | Signature | 26/02/1966 | |
| TURKEY | Ratification | 17/07/1990 | |
| UNITED KINGDOM | Accession | 17/11/1972 | |
| YUGOSLAVIA | Signature | 26/02/1966 | |
| YUGOSLAVIA | Ratification | 17/07/1967 |