| Country | Action | Action Date | Effective Date |
|---|
| ALBANIA | Accession | 13/07/1995 | 13/07/1995 |
| ANDORRA | Accession | 10/11/1994 | 10/11/1994 |
| AUSTRIA | Accession | 16/04/1956 | |
| BELGIUM | Signature | 05/05/1949 | |
| BELGIUM | Ratification | 08/08/1949 | |
| BULGARIA | Accession | 07/05/1992 | 07/05/1992 |
| CROATIA | Accession | 06/11/1996 | 06/11/1996 |
| CYPRUS | Accession | 24/05/1961 | |
| CZECH REPUBLIC | Accession | 30/06/1993 | 30/06/1993 |
| CZECHOSLOVAKIA | Accession | 21/02/1991 | 21/02/1991 |
| DENMARK | Signature | 05/05/1949 | |
| DENMARK | Ratification | 14/07/1949 | |
| ESTONIA | Accession | 14/05/1993 | 14/05/1993 |
| FINLAND | Accession | 05/05/1989 | 05/05/1989 |
| FRANCE | Signature | 05/05/1949 | |
| FRANCE | Ratification | 04/08/1949 | |
| GEORGIA | Accession | 27/04/1999 | 27/04/1999 |
| GERMANY | Accession | 13/07/1950 | |
| GREECE | Accession | 09/08/1949 | |
| GREECE | Withdrawal | 12/12/1969 | 31/12/1970 |
| GREECE | Re-Accession | 28/11/1974 | |
| HUNGARY | Accession | 06/11/1990 | 06/11/1990 |
| ICELAND | Accession | 07/03/1950 | |
| IRELAND, REPUBLIC OF | Signature | 05/05/1949 | |
| IRELAND, REPUBLIC OF | Ratification | 30/07/1949 | 30/07/1949 |
| ITALY | Signature | 05/05/1949 | |
| ITALY | Ratification | 03/08/1949 | |
| LATVIA | Accession | 10/02/1995 | 10/02/1995 |
| LIECHTENSTEIN | Accession | 23/11/1978 | |
| LITHUANIA | Accession | 14/05/1993 | 14/05/1993 |
| LUXEMBOURG | Signature | 05/05/1949 | |
| LUXEMBOURG | Ratification | 03/08/1949 | |
| MACEDONIA THE FYR OF | Accession | 09/11/1995 | 09/11/1995 |
| MALTA | Accession | 29/04/1965 | |
| MOLDOVA REPUBLIC OF | Accession | 13/07/1995 | 13/07/1995 |
| MONACO | Accession | 05/10/2004 | 05/10/2004 |
| MONTENEGRO | Accession | 11/05/2007 | 11/05/2007 |
| NETHERLANDS THE | Signature | 05/05/1949 | |
| NETHERLANDS THE | Ratification | 05/08/1949 | |
| NORWAY | Signature | 05/05/1949 | |
| NORWAY | Ratification | 02/08/1949 | |
| POLAND | Accession | 26/11/1991 | 26/11/1991 |
| PORTUGAL | Accession | 22/09/1976 | |
| ROMANIA | Accession | 07/10/1993 | 07/10/1993 |
| RUSSIAN FEDERATION | Accession | 28/02/1996 | 28/02/1996 |
| SAN MARINO | Accession | 16/11/1988 | 16/11/1988 |
| SERBIA | Accession | 03/04/2003 | 03/04/2003 |
| SLOVAK REPUBLIC | Accession | 30/06/1993 | 30/06/1993 |
| SLOVENIA | Accession | 14/05/1993 | 14/05/1993 |
| SPAIN | Accession | 24/11/1977 | |
| SWEDEN | Signature | 05/05/1949 | |
| SWEDEN | Ratification | 20/07/1949 | |
| SWITZERLAND | Accession | 06/05/1963 | |
| TURKEY | Accession | 13/04/1950 | |
| UKRAINE | Accession | 09/11/1995 | 09/11/1995 |
| UNITED KINGDOM | Signature | 05/05/1949 | |
| UNITED KINGDOM | Ratification | 26/07/1949 | |