Participant	Action	Date of Notification/Deposit	Date of Effect
Antigua and Barbuda	Accession	29/01/1988	29/04/1988
Argentina	Accession	31/08/1993	01/12/1993
Austria	Accession	27/05/1988	27/08/1988
Bahamas	Accession	07/06/1983	02/10/1983
Belgium	Accession	06/03/1984	06/06/1984
Brazil	Ratification	29/01/1988	29/04/1988
Bulgaria	Accession	12/12/1984	12/03/1985
Burma	Accession	04/05/1988	04/08/1988
China	Communication	05/06/1997	01/07/1997
China	Accession	01/07/1983	02/10/1983
Colombia	Accession	27/07/1981	02/10/1983
Czechoslovakia	Accession	02/07/1984	02/10/1984
Denmark	Accession	27/11/1980	02/10/1983
Djibouti	Accession	01/03/1990	01/06/1990
Federal Republic of Germany	Declaration	02/05/1984
Federal Republic of Germany	Ratification	21/01/1982	02/10/1983
Finland	Accession	20/09/1983	02/10/1983
France	Approval	25/09/1981	02/10/1983
Gabon	Accession	26/04/1983	02/10/1983
German Democratic Republic	Accession	25/04/1984	25/07/1984
Greece	Accession	23/09/1982	02/10/1983
Israel	Accession	31/08/1983	02/10/1983
Italy	Accession	01/10/1982	02/10/1983
Japan	Accession	09/06/1983	02/10/1983
Kiribati	Accession	05/02/2007	05/05/2007
Lebanon	Accession	18/07/1983	02/10/1983
Liberia	Ratification	28/10/1980	02/10/1983
Malta	Accession	21/06/1991	21/09/1991
Netherlands	Approval	30/06/1983	02/10/1983
New Zealand	Accession	25/09/1998	25/12/1998
Norway	Accession	15/07/1980	02/10/1983
Oman	Accession	13/03/1984	13/06/1984
Peru	Accession	25/04/1980	02/10/1983
Republic of Korea	Accession	23/07/1984	23/10/1984
Singapore	Accession	01/11/1990	01/02/1991
South Africa	Accession	28/11/1984	28/02/1985
Spain	Ratification	06/07/1984	06/10/1984
St. Kitts and Nevis	Accession	24/12/1997	24/03/1998
Sweden	Ratification	09/06/1980	02/10/1983
Switzerland	Accession	15/12/1987	15/03/1988
Syrian Arab Republic	Accession	09/11/1988	09/02/1989
Tunisia	Accession	10/10/1980	02/10/1983
United Kingdom of Great Britain and Northern Ireland	Declaration	02/04/1984
United Kingdom of Great Britain and Northern Ireland	Communication	11/06/1997
United Kingdom of Great Britain and Northern Ireland	Ratification	22/05/1980	02/10/1983
United States of America	Ratification	12/08/1980	02/10/1983
Uruguay	Definitive signature	30/04/1979	02/10/1983
Viet Nam	Accession	29/05/1991	29/08/1991
Yugoslavia (Socialist Federal Republic of)	Accession	31/10/1980	02/10/1983