| Countries/Territories |
Entry into force |
Withdrawal |
| Austria |
Oct 30, 1990
|
- |
| Belgium |
Mar 18, 1992
|
- |
| Bulgaria |
Nov 22, 1999
|
- |
| Bosnia and Herzegovina |
Sep 28, 1998
|
- |
| Switzerland |
Dec 4, 1995
|
- |
| Czech Republic |
Jun 2, 1993
|
Dec 31, 1996
|
| Germany |
Nov 13, 1991
|
- |
| Spain |
Nov 22, 1994
|
- |
| Finland |
Feb 11, 1991
|
Feb 1, 2007
|
| France |
Jul 15, 1990
|
Apr 29, 1997
|
| United Kingdom |
Mar 5, 1991
|
- |
| Greece |
Oct 4, 1995
|
- |
| Croatia |
Feb 2, 2001
|
- |
| Hungary |
Jan 20, 1993
|
- |
| Italy |
Jul 15, 1990
|
- |
| Lithuania |
Jan 28, 2002
|
- |
| Luxembourg |
Jun 26, 1992
|
- |
| Netherlands |
Jun 20, 2002
|
- |
| Norway |
May 5, 1992
|
- |
| Poland |
Mar 25, 1993
|
- |
| Romania |
Sep 14, 1992
|
- |
| Russian Federation |
Jul 26, 1994
|
- |
| Slovakia |
Feb 8, 1996
|
- |
| Slovenia |
May 28, 1993
|
- |
| Turkey |
Aug 2, 1994
|
- |
| Serbia |
Feb 27, 2003
|
- |
| Montenegro |
Mar 12, 2001
|
- |
| North Macedonia |
Oct 23, 2006
|
- |