Participant	Action	Date of Notification/Deposit	Date of Effect
Antigua and Barbuda	Ratification	16/09/2002	16/09/2003
Belgium	Ratification	28/02/2011	28/02/2012
Benin	Ratification	10/11/1998	10/11/1999
Bosnia and Herzegovina	Ratification	02/06/1993	02/06/1993
Brazil	Ratification	18/05/1990	18/05/1991
Bulgaria	Ratification	01/03/2012	01/03/2013
Burkina Faso	Ratification	25/08/1997	25/08/1998
Chile	Ratification	30/09/1999	30/09/2000
Colombia	Ratification	25/01/2001	25/01/2002
Côte d'Ivoire	Ratification	01/04/2016	01/04/2017
Croatia	Ratification	08/10/1991	08/10/1991
Czech Republic	Ratification	01/01/1993	01/01/1993
Czechoslovakia	Ratification	25/02/1988	25/02/1989
Finland	Ratification	27/04/1987	27/04/1988
Gabon	Ratification	28/07/2015	28/07/2016
German Democratic Republic	Ratification	08/11/1989	08/11/1990
Germany	Ratification	17/10/1994	17/10/1995
Guatemala	Ratification	18/04/1989	18/04/1990
Hungary	Ratification	24/02/1988	24/02/1989
Luxembourg	Ratification	08/04/2008	08/04/2009
Mexico	Ratification	17/02/1987	17/02/1988
Montenegro	Succession	28/05/2007	03/06/2006
Niger	Ratification	19/02/2009	19/02/2010
Poland	Ratification	15/09/2004	15/09/2005
San Marino	Ratification	19/04/1988	19/04/1989
Seychelles	Ratification	28/10/2005	28/10/2006
Slovakia	Ratification	01/01/1993	01/01/1993
Slovenia	Ratification	29/05/1992	29/05/1992
Sweden	Ratification	01/07/1986	17/02/1988
The former Yugoslav Republic of Macedonia	Ratification	17/11/1991	17/11/1991
Turkey	Ratification	22/04/2005	22/04/2006
Ukraine	Ratification	17/06/2010	17/06/2011
Uruguay	Ratification	05/09/1988	05/09/1989
Yugoslavia (Federal Republic of)	Ratification	19/04/2001	24/11/2000
Yugoslavia (Socialist Federal Republic of)	Ratification	02/05/1990	02/05/1991
Zimbabwe	Ratification	09/04/2003	09/04/2003