Participant	Action	Date of Notification/Deposit	Date of Effect
Albania	Accession	26/01/2005	26/02/2005
Andorra	Accession	09/03/2009	09/04/2009
Austria	Signature	13/12/1957
Austria	Ratification	20/09/1973	20/10/1973
Azerbaijan	Accession	28/09/2000	28/10/2000
Belarus	Accession	05/04/1993	05/05/1993
Belgium	Signature	18/10/1957
Belgium	Ratification	25/08/1960	29/01/1968
Bosnia and Herzegovina	Succession	01/09/1993	06/03/1992
Bulgaria	Accession	12/05/1995	12/06/1995
Croatia	Succession	23/11/1992	08/10/1991
Cyprus	Accession	19/04/2004	19/05/2004
Czech Republic	Succession	02/06/1993	01/01/1993
Czechoslovakia	Accession	17/07/1986	17/08/1986
Denmark	Accession	01/07/1981	01/08/1981
Estonia	Accession	25/06/1996	25/07/1996
Federal Republic of Germany	Declaration	15/07/1974
Federal Republic of Germany	Declaration	19/09/1975
Federal Republic of Germany	Signature	13/12/1957
Federal Republic of Germany	Ratification	01/12/1969	01/01/1970
Finland	Accession	28/02/1979	28/03/1979
France	Declaration	08/07/1975
France	Declaration	17/06/1974
France	Signature	13/12/1957
France	Ratification	02/02/1960	29/01/1968
Georgia	Accession	19/09/2016	19/10/2016
German Democratic Republic	Accession	27/12/1973	27/01/1974
Greece	Accession	27/05/1988	27/06/1988
Hungary	Withdrawal of declaration	03/10/1990	03/10/1990
Hungary	Accession	19/07/1979	19/08/1979
Iceland	Accession	24/02/2011	24/03/2011
Ireland	Accession	12/10/2006	12/11/2006
Italy	Signature	13/12/1957
Italy	Ratification	03/06/1963	29/01/1968
Kazakhstan	Accession	26/07/2001	26/08/2001
Latvia	Accession	11/04/1996	11/05/1996
Liechtenstein	Accession	12/12/1994	12/01/1995
Lithuania	Accession	07/12/1995	07/01/1996
Luxembourg	Signature	13/12/1957
Luxembourg	Ratification	21/07/1970	21/08/1970
Malta	Accession	08/05/2007	08/06/2007
Montenegro	Succession	23/10/2006	03/06/2006
Morocco	Accession	11/05/2001	11/06/2001
Netherlands	Signature	13/12/1957
Netherlands	Ratification	01/11/1963	29/01/1968
Nigeria	Accession	18/10/2018	18/11/2018
None	Entry into force of amendment	01/01/1982
None	Entry into force of amendment	01/01/1983
None	Entry into force of amendment	01/05/1985
None	Entry into force of amendment	01/01/1988
None	Entry into force of annex	29/07/1968
None	Entry into force of amendment	01/10/1978
None	Entry into force of amendment	03/02/1978
None	Entry into force of amendment	29/03/1976
None	Entry into force of amendment	21/04/1976
None	Correction	30/03/1997
None	Entry into force of amendment	01/01/1997
None	Entry into force of amendment	29/01/1992
None	Entry into force of amendment	01/01/1990
None	Entry into force of amendment	01/04/1974
None	Entry into force of amendment	15/03/1974
None	Entry into force of amendment	01/01/1993	01/01/1993
None	Entry into force of amendment	01/01/1995	01/01/1995
None	Entry into force of amendment	01/03/1980	01/03/1980
None	Entry into force of amendment	01/01/1973	01/07/1973
None	Entry into force of amendment	01/10/1975	01/10/1975
None	Entry into force of amendment	02/12/1981	02/06/1982
None	Rectification	05/07/1982	05/07/1982
None	Entry into force of amendment	15/10/1974	15/10/1974
None	Entry into force of amendment	15/10/1997	15/11/1997
None	Entry into force of amendment	17/08/1976	17/02/1977
None	Entry into force of amendment	18/03/1980	18/03/1980
None	Entry into force of amendment	19/05/1975	19/11/1975
None	Entry into force of amendment	20/06/1983	20/12/1983
None	Amendment	26/10/1970	26/04/1971
None	Proposal of Amendments	27/12/2002	27/06/2003
None	Entry into force of amendment	30/12/1971	30/06/1972
Norway	Accession	05/02/1976	05/03/1976
Poland	Accession	06/05/1975	06/06/1975
Portugal	Accession	29/12/1967	29/01/1968
Republic of Moldova	Accession	14/07/1998	14/08/1998
Romania	Accession	08/06/1994	08/07/1994
Russian Federation	Accession	28/04/1994	28/05/1994
San Marino	Accession	15/01/2018	15/02/2018
Slovakia	Succession	28/05/1993	01/01/1993
Slovenia	Succession	06/07/1992	25/06/1991
Spain	Accession	22/11/1972	22/12/1972
Sweden	Accession	01/03/1974	01/04/1974
Switzerland	Signature	06/11/1957
Switzerland	Ratification	20/06/1972	20/07/1972
Tajikistan	Accession	28/12/2011	28/01/2012
The former Yugoslav Republic of Macedonia	Succession	18/04/1997	17/11/1991
Tunisia	Accession	03/09/2008	03/10/2008
Turkey	Accession	22/02/2010	22/03/2010
Ukraine	Accession	01/05/2000	01/06/2000
United Kingdom of Great Britain and Northern Ireland	Declaration	08/07/1975
United Kingdom of Great Britain and Northern Ireland	Declaration	17/06/1974
United Kingdom of Great Britain and Northern Ireland	Signature	01/10/1957
United Kingdom of Great Britain and Northern Ireland	Ratification	29/06/1968	29/07/1968
United States of America	Declaration	17/06/1974
United States of America	Declaration	08/07/1975
Uzbekistan	Accession	24/01/2020	24/02/2020
Yugoslavia (Federal Republic of)	Succession	12/03/2001	27/04/1992
Yugoslavia (Socialist Federal Republic of)	Accession	28/05/1971	28/06/1971