| Country | Action | Action Date | Effective Date |
|---|
| ALBANIA | Accession | 02/08/2006 | 01/10/2006 |
| ALBANIA | Notification | 02/08/2006 | 01/10/2006 |
| ARMENIA | Accession | 09/06/2006 | 07/09/2006 |
| AUSTRIA | Signature | 29/12/1976 | |
| AZERBAIJAN | Accession | 16/08/1996 | 14/11/1996 |
| BELGIUM | Accession | 15/04/1985 | 14/07/1985 |
| Berlin West | Extension | 03/08/1978 | |
| BOSNIA AND HERZEGOVINA | Succession | 01/09/1993 | 06/03/1992 |
| BULGARIA | Signature | 14/12/1976 | |
| BULGARIA | Reservation | 14/12/1976 | |
| BULGARIA | Ratification | 17/11/1977 | |
| BULGARIA | Reservation | 17/11/1977 | |
| BYELORUSSIA S S R | Accession | 17/12/1982 | 17/03/1983 |
| BYELORUSSIA S S R | Declaration | 17/12/1982 | |
| CROATIA | Succession | 02/02/1994 | 08/10/1991 |
| CZECH REPUBLIC | Succession | 02/06/1993 | 01/01/1993 |
| CZECHOSLOVAKIA | Accession | 26/11/1986 | 24/02/1987 |
| CZECHOSLOVAKIA | Declaration | 26/11/1986 | |
| CZECHOSLOVAKIA | Notification | 26/11/1986 | |
| DENMARK | Accession | 02/11/1987 | 31/01/1988 |
| FINLAND | Accession | 19/11/1991 | 17/02/1992 |
| FRANCE | Accession | 15/12/1982 | |
| FRANCE | Objection | 26/07/1984 | |
| FRANCE | Communication | 29/10/1986 | |
| GEORGIA | Accession | 30/08/1995 | 28/11/1995 |
| GERMAN DEMOCRATIC REPUBLIC | Signature | 29/12/1976 | |
| GERMAN DEMOCRATIC REPUBLIC | Reservation | 29/12/1976 | |
| GERMAN DEMOCRATIC REPUBLIC | Notification | 29/12/1976 | |
| GERMAN DEMOCRATIC REPUBLIC | Ratification | 14/04/1981 | |
| GERMAN DEMOCRATIC REPUBLIC | Declaration | 14/04/1981 | |
| GERMANY FEDERAL REPUBLIC | Signature | 19/11/1976 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 03/08/1978 | |
| GERMANY FEDERAL REPUBLIC | Declaration | 03/08/1978 | |
| GERMANY FEDERAL REPUBLIC | Notification | 03/08/1978 | |
| GERMANY FEDERAL REPUBLIC | Declaration | 23/08/1984 | |
| GREECE | Accession | 11/10/1988 | 09/01/1989 |
| HUNGARY | Accession | 01/09/1978 | |
| HUNGARY | Declaration | 01/09/1978 | |
| HUNGARY | Notification | 01/09/1978 | |
| ITALY | Accession | 02/07/1981 | |
| ITALY | Notification | 02/07/1981 | |
| KAZAKHSTAN | Accession | 17/07/1995 | 15/10/1995 |
| LATVIA | Accession | 12/06/1997 | 10/09/1997 |
| LITHUANIA | Accession | 27/08/1993 | 25/11/1993 |
| LITHUANIA | Notification | 27/08/1993 | |
| LUXEMBOURG | Signature | 16/06/1976 | |
| LUXEMBOURG | Ratification | 20/11/1981 | |
| MACEDONIA THE FYR OF | Succession | 20/12/1999 | 17/11/1991 |
| MOLDOVA REPUBLIC OF | Accession | 25/05/2006 | 23/08/2006 |
| NETHERLANDS THE | Accession | 12/12/1979 | |
| NETHERLANDS THE | Notification | 12/12/1979 | |
| NETHERLANDS THE | Objection | 30/09/2005 | |
| NORWAY | Accession | 14/09/1992 | 13/12/1992 |
| POLAND | Signature | 31/12/1976 | |
| POLAND | Ratification | 09/11/1984 | 07/02/1985 |
| POLAND | Reservation | 09/11/1984 | |
| POLAND | Notification | 05/03/1985 | |
| PORTUGAL | Accession | 08/01/1991 | 08/04/1991 |
| ROMANIA | Accession | 02/07/1985 | 30/09/1985 |
| ROMANIA | Reservation | 02/07/1985 | |
| SLOVENIA | Succession | 01/07/1992 | 25/06/1991 |
| SOVIET UNION | Accession | 14/12/1982 | |
| SOVIET UNION | Declaration | 14/12/1982 | |
| SOVIET UNION | Objection | 14/12/1982 | |
| SOVIET UNION | Objection | 02/12/1985 | |
| SWEDEN | Accession | 27/10/1992 | 25/01/1993 |
| SWITZERLAND | Signature | 30/01/1976 | |
| SWITZERLAND | Ratification | 05/08/1988 | 03/11/1988 |
| TURKEY | Accession | 16/10/1992 | 14/01/1992 |
| UKRAINE S S R | Accession | 29/12/1982 | 29/03/1983 |
| UKRAINE S S R | Declaration | 29/12/1982 | |
| UNITED KINGDOM | Signature | 22/12/1976 | |
| UNITED KINGDOM | Objection | 26/07/1984 | |
| UNITED KINGDOM | Communication | 29/12/1986 | |
| UNITED STATES OF AMERICA | Objection | 26/07/1984 | |
| UNITED STATES OF AMERICA | Communication | 29/10/1986 | |
| YUGOSLAVIA | Accession | 19/12/1980 | |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Succession | 12/03/2001 | 27/04/1992 |