| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| AUSTRIA | Signature | 19/11/1991 | |
| AUSTRIA | Declaration | 19/11/1991 | |
| AUSTRIA | Ratification | 23/08/1994 | |
| AUSTRIA | Declaration | 23/08/1994 | |
| BELGIUM | Signature | 19/11/1991 | |
| BELGIUM | Declaration | 19/11/1991 | |
| BELGIUM | Ratification | 08/11/2000 | 06/02/2001 |
| BULGARIA | Signature | 19/11/1991 | |
| BULGARIA | Declaration | 19/11/1991 | |
| BULGARIA | Ratification | 27/02/1998 | |
| BULGARIA | Declaration | 27/02/1998 | 28/05/1998 |
| CANADA | Signature | 19/11/1991 | |
| CANADA | Declaration | 19/11/1991 | |
| CROATIA | Accession | 03/03/2008 | 01/06/2008 |
| CZECH REPUBLIC | Accession | 01/07/1997 | |
| CZECH REPUBLIC | Declaration | 01/07/1997 | |
| DENMARK | Signature | 19/11/1991 | |
| DENMARK | Declaration | 19/11/1991 | |
| DENMARK | Acceptance | 21/05/1996 | |
| DENMARK | Declaration | 21/05/1996 | |
| ESTONIA | Accession | 07/03/2000 | 05/06/2000 |
| EUROPEAN ECONOMIC COMMUNITY | Signature | 02/04/1992 | |
| EUROPEAN ECONOMIC COMMUNITY | Declaration | 02/04/1992 | |
| FINLAND | Signature | 19/11/1991 | |
| FINLAND | Declaration | 19/11/1991 | |
| FINLAND | Acceptance | 11/01/1994 | |
| FRANCE | Signature | 19/11/1991 | |
| FRANCE | Declaration | 19/11/1991 | |
| FRANCE | Approval | 12/06/1997 | |
| FRANCE | Declaration | 12/06/1997 | |
| GERMANY | Signature | 19/11/1991 | |
| GERMANY | Declaration | 19/11/1991 | |
| GREECE | Signature | 19/11/1991 | |
| GREECE | Declaration | 19/11/1991 | |
| Guernsey, Bailiwick of | Extension | 14/06/1994 | |
| HUNGARY | Signature | 19/11/1991 | |
| HUNGARY | Declaration | 19/11/1991 | |
| HUNGARY | Ratification | 10/11/1995 | |
| Isle of Man | Extension | 14/06/1994 | |
| ITALY | Signature | 19/11/1991 | |
| ITALY | Declaration | 19/11/1991 | |
| ITALY | Ratification | 30/06/1995 | |
| Jersey, Bailiwick of | Extension | 14/06/1994 | |
| LIECHTENSTEIN | Signature | 19/11/1991 | |
| LIECHTENSTEIN | Declaration | 19/11/1991 | |
| LIECHTENSTEIN | Ratification | 24/03/1994 | |
| LITHUANIA | Accession | 22/05/2007 | 20/08/2007 |
| LUXEMBOURG | Signature | 19/11/1991 | |
| LUXEMBOURG | Declaration | 19/11/1991 | |
| LUXEMBOURG | Ratification | 11/11/1993 | |
| LUXEMBOURG | Confirmation | 11/11/1993 | |
| MACEDONIA THE FYR OF | Accession | 10/03/2010 | 08/06/2010 |
| MONACO | Accession | 24/10/2001 | |
| NETHERLANDS THE | Signature | 19/11/1991 | |
| NETHERLANDS THE | Declaration | 19/11/1991 | |
| NETHERLANDS THE | Acceptance | 29/09/1993 | |
| NETHERLANDS THE | Declaration | 29/09/1993 | |
| NORWAY | Signature | 19/11/1991 | |
| NORWAY | Declaration | 19/11/1991 | |
| NORWAY | Ratification | 07/01/1993 | |
| PORTUGAL | Signature | 02/04/1992 | |
| PORTUGAL | Declaration | 02/04/1992 | |
| SLOVAK REPUBLIC | Accession | 15/12/1999 | 14/03/2000 |
| SLOVAK REPUBLIC | Declaration | 04/12/2000 | |
| SPAIN | Signature | 19/11/1991 | |
| SPAIN | Declaration | 19/11/1991 | |
| SPAIN | Ratification | 01/02/1994 | |
| SWEDEN | Signature | 19/11/1991 | |
| SWEDEN | Declaration | 19/11/1991 | |
| SWEDEN | Ratification | 08/11/1993 | |
| SWITZERLAND | Signature | 19/11/1991 | |
| SWITZERLAND | Declaration | 19/11/1991 | |
| SWITZERLAND | Ratification | 21/03/1994 | |
| UKRAINE S S R | Signature | 19/11/1991 | |
| UKRAINE S S R | Declaration | 19/11/1991 | |
| UNITED KINGDOM | Signature | 19/11/1991 | |
| UNITED KINGDOM | Declaration | 19/11/1991 | |
| UNITED KINGDOM | Declaration | 14/06/1994 | |
| UNITED KINGDOM | Ratification | 14/06/1994 | |
| UNITED STATES OF AMERICA | Signature | 19/11/1991 | |
| UNITED STATES OF AMERICA | Declaration | 19/11/1991 |