| 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 |