| Country | Action | Action Date | Effective Date |
|---|
| Azores | Extension | 21/04/1978 | |
| BELGIUM | Signature | 11/12/1953 | |
| BELGIUM | Reservation | 03/04/1957 | 01/05/1957 |
| CYPRUS | Signature | 03/03/1972 | |
| CYPRUS | Reservation | 03/03/1972 | |
| CYPRUS | Declaration | 03/03/1972 | |
| CYPRUS | Ratification | 14/03/1973 | 01/04/1973 |
| CYPRUS | Reservation | 14/03/1973 | |
| CYPRUS | Declaration | 14/03/1973 | |
| CZECH REPUBLIC | Signature | 25/02/1998 | |
| CZECH REPUBLIC | Ratification | 08/09/2000 | 01/10/2000 |
| CZECH REPUBLIC | Declaration | 08/09/2000 | |
| CZECH REPUBLIC | Declaration | 09/02/2001 | |
| DENMARK | Signature | 11/12/1953 | |
| DENMARK | Reservation | 11/12/1953 | |
| DENMARK | Ratification | 30/06/1954 | 01/07/1954 |
| ESTONIA | Signature | 01/12/1999 | |
| ESTONIA | Declaration | 01/12/1999 | |
| ESTONIA | Ratification | 17/04/2002 | 01/05/2002 |
| FRANCE | Signature | 11/12/1953 | |
| FRANCE | Ratification | 18/12/1957 | 01/01/1958 |
| GERMANY FEDERAL REPUBLIC | Signature | 11/12/1953 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 24/08/1956 | 01/09/1956 |
| GERMANY FEDERAL REPUBLIC | Reservation | 24/08/1956 | |
| GREECE | Signature | 11/12/1953 | |
| GREECE | Ratification | 29/05/1961 | 01/06/1961 |
| ICELAND | Signature | 11/12/1953 | |
| ICELAND | Ratification | 04/12/1964 | 01/01/1965 |
| IRELAND, REPUBLIC OF | Signature | 11/12/1953 | |
| IRELAND, REPUBLIC OF | Ratification | 31/03/1954 | 01/07/1954 |
| ITALY | Signature | 11/12/1953 | |
| ITALY | Ratification | 26/08/1958 | 01/09/1958 |
| ITALY | Declaration | 26/08/1958 | |
| Land Berlin | Extension | 24/08/1956 | 01/09/1956 |
| LATVIA | Ratification | 13/08/2001 | 01/09/2001 |
| LATVIA | Reservation | 13/08/2001 | |
| LITHUANIA | Signature | 19/11/1997 | |
| LITHUANIA | Declaration | 19/11/1997 | |
| LITHUANIA | Ratification | 18/11/1999 | 01/12/1999 |
| LITHUANIA | Declaration | 18/11/1999 | |
| LUXEMBOURG | Signature | 11/12/1953 | |
| LUXEMBOURG | Reservation | 11/12/1953 | |
| LUXEMBOURG | Ratification | 18/11/1958 | 01/12/1958 |
| Madeira | Extension | 21/04/1978 | |
| NETHERLANDS THE | Signature | 11/12/1953 | |
| NETHERLANDS THE | Ratification | 11/03/1955 | 01/04/1955 |
| NORWAY | Signature | 11/12/1953 | |
| NORWAY | Ratification | 09/09/1954 | 01/10/1954 |
| PORTUGAL | Signature | 27/04/1977 | |
| PORTUGAL | Ratification | 21/04/1978 | 01/05/1978 |
| PORTUGAL | Declaration | 21/04/1978 | |
| PORTUGAL | Declaration | 23/03/2000 | |
| SAAR TERRITORY | Signature | 11/12/1953 | |
| SAAR TERRITORY | Ratification | 08/09/1954 | |
| SPAIN | Signature | 09/02/1981 | |
| SPAIN | Ratification | 31/01/1984 | 01/02/1984 |
| SPAIN | Declaration | 21/08/1985 | |
| SPAIN | Declaration | 19/05/1987 | |
| SWEDEN | Signature | 11/12/1953 | |
| SWEDEN | Ratification | 02/09/1955 | 01/10/1955 |
| SWEDEN | Communication | 18/09/1959 | |
| TURKEY | Signature | 11/12/1953 | |
| TURKEY | Ratification | 14/04/1967 | 01/05/1967 |
| UNITED KINGDOM | Signature | 11/12/1953 | |
| UNITED KINGDOM | Reservation | 11/12/1953 | |
| UNITED KINGDOM | Ratification | 07/09/1954 | 01/10/1954 |