Participant	Action	Date of Notification/Deposit	Date of Effect
Albania	Accession	23/06/2003	22/09/2003
Algeria	Accession	15/07/1964	13/10/1964
Angola	Accession	07/10/2019	05/01/2020
Antigua and Barbuda	Succession	25/10/1988	01/11/1981
Argentina	Accession	01/06/1972	30/08/1972
Armenia	Accession	18/05/1994	16/08/1994
Australia	Accession	13/12/1973	13/03/1974
Austria	Accession	08/02/2008	08/05/2008
Azerbaijan	Accession	16/08/1996	14/11/1996
Barbados	Succession	06/03/1972
Belgium	Signature	28/09/1954
Belgium	Ratification	27/05/1960	25/08/1960
Belize	Accession	14/09/2006	13/12/2006
Benin	Accession	08/12/2011	07/03/2012
Bolivia	Accession	06/10/1983	04/01/1984
Bosnia and Herzegovina	Succession	01/09/1993	06/03/1992
Botswana	Succession	25/02/1969
Brazil	Signature	28/09/1954
Brazil	Ratification	13/08/1996	11/11/1996
Bulgaria	Withdrawal of reservation	26/10/2020
Bulgaria	Accession	22/03/2012	20/06/2012
Burkina Faso	Accession	01/05/2012	30/07/2012
Chad	Accession	12/08/1999	10/11/1999
Chile	Accession	11/04/2018	10/07/2018
China	Signature	08/02/2006
Colombia	Signature	30/12/1954
Colombia	Ratification	07/10/2019	05/01/2020
Costa Rica	Signature	28/09/1954
Costa Rica	Ratification	02/11/1977	31/01/1978
Côte d'Ivoire	Accession	03/10/2013	01/01/2014
Croatia	Succession	12/10/1992	08/10/1991
Czech Republic	Accession	19/07/2004	17/10/2004
Denmark	Withdrawal of reservation	25/03/1968
Denmark	Withdrawal of reservation	23/08/1962
Denmark	Signature	28/09/1954
Denmark	Ratification	17/01/1956	06/06/1960
Ecuador	Signature	28/09/1954
Ecuador	Ratification	02/10/1970	31/12/1970
El Salvador	Signature	28/09/1954
El Salvador	Ratification	09/02/2015	10/05/2015
Federal Republic of Germany	Signature	28/09/1954
Federal Republic of Germany	Ratification	26/10/1976	24/01/1977
Fiji	Succession	12/06/1972
Finland	Withdrawal of reservation	30/09/1970
Finland	Accession	10/10/1968	08/01/1969
France	Signature	12/01/1955
France	Ratification	08/03/1960	06/06/1960
Gambia	Accession	01/07/2014	29/09/2014
Georgia	Accession	23/12/2011	22/03/2012
Greece	Accession	04/11/1975	02/02/1976
Guatemala	Signature	28/09/1954
Guatemala	Ratification	28/11/2000	26/02/2001
Guinea	Accession	21/03/1962	19/06/1962
Guinea-Bissau	Accession	19/09/2016	18/12/2016
Haiti	Accession	27/09/2018	26/12/2018
Holy See	Signature	28/09/1954
Honduras	Signature	28/09/1954
Honduras	Ratification	01/10/2012	30/12/2012
Hungary	Partial withdrawal of reservation	03/07/2012
Hungary	Accession	21/11/2001	19/02/2002
Iceland	Accession	26/01/2021	26/04/2021
Ireland	Accession	17/12/1962	17/03/1963
Israel	Signature	01/10/1954
Israel	Ratification	23/12/1958	06/06/1960
Italy	Withdrawal of reservation	25/01/1968
Italy	Signature	20/10/1954
Italy	Ratification	03/12/1962	03/03/1963
Kiribati	Succession	29/11/1983	12/07/1979
Latvia	Accession	05/11/1999	03/02/2000
Lesotho	Succession	04/11/1974	04/11/1974
Liberia	Accession	11/09/1964	10/12/1964
Libyan Arab Jamahiriya	Accession	16/05/1989	14/08/1989
Liechtenstein	Signature	28/09/1954
Liechtenstein	Ratification	25/09/2009	24/12/2009
Lithuania	Accession	07/02/2000	07/05/2000
Luxembourg	Ratification	27/06/1960
Luxembourg	Signature	28/10/1955
Madagascar	Denunciation	02/04/1965	02/04/1966
Madagascar	Accession	20/02/1962	21/05/1962
Malawi	Accession	07/10/2009	05/01/2010
Mali	Accession	27/05/2016	25/08/2016
Malta	Accession	11/12/2019	10/03/2020
Mexico	Partial withdrawal of reservation	11/07/2014
Mexico	Accession	07/06/2000	05/09/2000
Montenegro	Succession	23/10/2006	03/06/2006
Mozambique	Accession	01/10/2014	30/12/2014
Netherlands	Signature	28/09/1954
Netherlands	Ratification	12/04/1962	11/07/1962
Nicaragua	Accession	15/07/2013	13/10/2013
Niger	Accession	07/11/2014	05/02/2015
Nigeria	Accession	20/09/2011	19/12/2011
Norway	Signature	28/09/1954
Norway	Ratification	19/11/1956	06/06/1960
Panama	Accession	02/06/2011	31/08/2011
Paraguay	Accession	01/07/2014	29/09/2014
Peru	Accession	23/01/2014	23/04/2014
Philippines	Signature	22/06/1955
Philippines	Ratification	22/09/2011	21/12/2011
Portugal	Accession	01/10/2012	30/12/2012
Republic of Korea	Accession	22/08/1962	20/11/1962
Republic of Moldova	Accession	19/04/2012	18/07/2012
Romania	Accession	27/01/2006	27/04/2006
Rwanda	Accession	04/10/2006	02/01/2007
Senegal	Accession	21/09/2005	20/12/2005
Sierra Leone	Accession	09/05/2016	07/08/2016
Slovakia	Accession	03/04/2000	02/07/2000
Slovenia	Succession	06/07/1992	25/06/1991
Spain	Accession	12/05/1997	10/08/1997
St. Vincent and the Grenadines	Succession	27/04/1999	27/10/1979
Swaziland	Accession	16/11/1999	14/02/2000
Sweden	Signature	28/09/1954
Sweden	Withdrawal of reservation	05/03/1970
Sweden	Withdrawal of reservation	14/11/2019
Sweden	Ratification	02/04/1965	01/07/1965
Switzerland	Signature	28/09/1954
Switzerland	Ratification	03/07/1972	01/10/1972
The former Yugoslav Republic of Macedonia	Succession	18/01/1994	17/11/1991
Trinidad and Tobago	Succession	11/04/1966
Tunisia	Accession	29/07/1969	27/10/1969
Turkey	Accession	26/03/2015	24/06/2015
Turkmenistan	Accession	07/12/2011	06/03/2012
Uganda	Accession	15/04/1965	14/07/1965
Ukraine	Accession	25/03/2013	23/06/2013
United Kingdom of Great Britain and Northern Ireland	Signature	28/09/1954
United Kingdom of Great Britain and Northern Ireland	Ratification	16/04/1959	06/06/1960
United Kingdom of Great Britain and Northern Ireland	Territorial application	07/12/1959	06/06/1960
United Kingdom of Great Britain and Northern Ireland	Territorial application	14/04/1959	06/06/1960
United Kingdom of Great Britain and Northern Ireland	Territorial application	09/12/1959	06/06/1960
United Kingdom of Great Britain and Northern Ireland	Territorial application	19/03/1962	17/06/1962
Uruguay	Accession	02/04/2004	01/07/2004
Yugoslavia (Federal Republic of)	Succession	12/03/2001	27/04/1992
Yugoslavia (Socialist Federal Republic of)	Accession	09/04/1959	06/06/1960
Zambia	Succession	01/11/1974	01/11/1974
Zimbabwe	Succession	01/12/1998	18/04/1980