| Countries/Territories |
Entry into force |
Ratification * |
Simple signature |
| Austria |
Feb 14, 1991
|
Jan 15, 1990
[1]
|
Nov 1, 1988
|
| Belgium |
Feb 6, 2001
|
Nov 8, 2000
[1]
|
Nov 1, 1988
|
| Belarus |
Feb 14, 1991
|
Jun 8, 1989
[3]
|
Nov 1, 1988
|
| Bulgaria |
Feb 14, 1991
|
Mar 30, 1989
[1]
|
Nov 1, 1988
|
| Canada |
Apr 25, 1991
|
Jan 25, 1991
[1]
|
Nov 1, 1988
|
| Cyprus |
Dec 1, 2004
|
Sep 2, 2004
[2]
|
- |
| Czech Republic |
Dec 29, 1993
|
Sep 30, 1993
[4]
|
- |
| Denmark |
Jun 1, 1993
|
Mar 1, 1993
[3]
|
Nov 1, 1988
|
| Estonia |
May 5, 2000
|
Mar 7, 2000
[2]
|
- |
| European Union |
Mar 17, 1994
|
Dec 17, 1993
[2]
|
- |
| Finland |
Feb 14, 1991
|
Feb 1, 1990
[1]
|
Nov 1, 1988
|
| France |
Feb 14, 1991
|
Jul 20, 1989
[3]
|
Nov 1, 1988
|
| United Kingdom |
Feb 14, 1991
|
Oct 15, 1990
[1]
|
Nov 1, 1988
|
| Germany |
Feb 14, 1991
|
Nov 16, 1990
[1]
|
Nov 1, 1988
|
| Greece |
Jul 28, 1998
|
Apr 29, 1998
[1]
|
Nov 1, 1988
|
| Hungary |
Jan 31, 1992
|
Nov 12, 1991
[3]
|
May 3, 1989
|
| Ireland |
Jan 15, 1995
|
Oct 17, 1994
[1]
|
May 1, 1989
|
| Italy |
Aug 17, 1992
|
May 19, 1992
[1]
|
Nov 1, 1988
|
| Liechtenstein |
Jun 22, 1994
|
Mar 24, 1994
[1]
|
Nov 1, 1988
|
| Lithuania |
Aug 24, 2006
|
May 26, 2006
[2]
|
- |
| Luxembourg |
Feb 14, 1991
|
Oct 4, 1990
[3]
|
Nov 1, 1988
|
| Netherlands |
Feb 14, 1991
|
Oct 11, 1989
[3]
|
Nov 1, 1988
|
| Norway |
Feb 14, 1990
|
Oct 11, 1989
[1]
|
Nov 1, 1988
|
| Poland |
Feb 21, 2012
|
Nov 23, 2011
[1]
|
Nov 1, 1988
|
| Russian Federation |
Feb 14, 1991
|
Jun 21, 1989
[3]
|
Nov 1, 1988
|
| Slovakia |
Aug 28, 1993
|
May 28, 1993
[4]
|
- |
| Slovenia |
Apr 5, 2006
|
Jan 5, 2006
[2]
|
- |
| Spain |
Feb 4, 1991
|
Dec 4, 1990
[1]
|
Nov 1, 1988
|
| Sweden |
Feb 14, 1991
|
Jul 27, 1990
[1]
|
Nov 1, 1988
|
| Switzerland |
Feb 14, 1991
|
Sep 18, 1990
[1]
|
Nov 1, 1988
|
| Ukraine |
Feb 14, 1991
|
Jul 24, 1989
[3]
|
Nov 1, 1988
|
| United States of America |
Feb 14, 1991
|
Jul 13, 1989
[3]
|
Nov 1, 1988
|
| Croatia |
Jun 1, 2008
|
Mar 3, 2008
[2]
|
- |
| Albania |
Sep 14, 2009
|
Jun 16, 2009
[2]
|
- |
| North Macedonia |
Jun 10, 2010
|
Mar 10, 2010
[2]
|
- |
* [1] Ratification
[2] Accession/approbation
[3] Acceptance/approval
[4] Succession
[5] Consent to be bound
[6] Definite signature