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Party Signature Provisional
application
RatificationS=Signature without reservation or requirement of ratification R=Ratification, Acceptance, Approval or Notification A=Accession Su=Succession NK=Not Known Entry into force Renunciation Termination
Albania 20-04-1921 08-10-1921 (R) 31-10-1922
Antigua and Barbuda 25-10-1988 (Su) 01-11-1981
Armenia 24-05-2013 (A) 22-08-2013
Austria 20-04-1921 15-11-1923 (R) 03-02-1924
Belgium 20-04-1921 16-05-1927 (R) 14-08-1927
Bolivia 20-04-1921
Bosnia and Herzegovina 01-09-1993 (Su) 06-03-1992
Bulgaria 20-04-1921 11-07-1922 (R) 31-10-1922
Cambodia 12-04-1971 (Su) 09-10-1970
Chile 20-04-1921 19-03-1928 (R) 17-06-1928
China 20-04-1921
Croatia 03-08-1992 (Su) 08-10-1991
Czech Republic 09-02-1996 (Su) 01-01-1993
Czechoslovakia (<01-01-1993) 20-04-1921 29-10-1923 (R) 27-01-1924
Denmark 20-04-1921 13-11-1922 (R) 13-02-1923
Estonia 20-04-1921 06-06-1925 (R) 04-09-1925
Eswatini 24-11-1969 (A) 22-02-1970
Ethiopia 20-04-1921
Fiji 15-03-1972 (Su) 10-10-1970
Finland 20-04-1921 29-01-1923 (R) 29-04-1923
France 20-04-1921 19-09-1924 (R) 18-12-1924
Georgia 02-06-1999 (A) 31-08-1999
Germany 09-04-1924 (A) 08-07-1924
Greece 20-04-1921 18-02-1924 (R) 18-05-1924
Guatemala 20-04-1921
Hungary 18-05-1928 (A) 16-08-1928
India 20-04-1921 02-08-1922 (R) 31-10-1922
Iran 20-04-1921 29-01-1931 (R) 29-04-1931
Iraq 01-03-1930 (A) 30-05-1930
Italy 20-04-1921 05-08-1922 (R) 03-11-1922
Japan 20-04-1921 20-02-1924 (R) 24-05-1924
Laos 24-11-1956 (Su) 22-10-1953
Latvia 20-04-1921 29-09-1923 (R) 28-12-1923
Lebanon 07-02-1929 (A) 08-05-1929
Lesotho 23-10-1973 (Su) 04-10-1966
Liberia 16-09-2005 (A) 15-03-2006
Lithuania 20-04-1921
Luxembourg 20-04-1921 19-03-1930 (R) 17-06-1930
Malta 13-05-1966 (Su) 21-09-1964
Mauritius 18-07-1969 (Su) 12-03-1968
Nepal 22-08-1966 (A) 20-11-1966
Netherlands, the Kingdom of the 28-11-1921 17-04-1924 (R) 16-07-1924
New Zealand 20-04-1921 02-08-1922 (R) 31-10-1922
Nigeria 03-11-1967 (A) 01-02-1968
Norway 20-04-1921 04-09-1923 (R) 03-12-1923
Panama 20-04-1921
Peru 20-04-1921
Poland 20-04-1921 08-10-1924 (R) 06-01-1925
Portugal 20-04-1921
Romania 20-04-1921 05-09-1923 (R) 04-12-1923
Rwanda 10-02-1966 (Su) 01-07-1962
Saint Vincent and the Grenadines 05-09-2001 (Su) 27-10-1979
Slovakia 28-05-1993 (Su) 01-01-1993
Slovenia 01-07-1992 (Su) 25-06-1991
Spain 20-04-1921 17-12-1929 (R) 17-03-1930
Sweden 20-04-1921 19-01-1925 (R) 19-04-1925
Switzerland 20-04-1921 14-07-1924 (R) 12-10-1924
Syria 07-02-1929 (A) 08-05-1929
Thailand 29-11-1922 (A) 20-02-1923
Türkiye 27-06-1933 (A) 25-09-1933
United Kingdom 20-04-1921 02-08-1922 (R) 31-10-1922
Uruguay 20-04-1921
Yugoslavia (< 25-06-1991) 20-04-1921 07-05-1930 (R) 05-08-1930
Zimbabwe 01-12-1998 (Su) 18-04-1980