| Entry into force: | 14 December 1930. |
| Registration: | 14 December 1930, No. 25601. |
|
|
| Austria | (March 27th, 1931) |
| United Kingdom of Great Britain and Northern Ireland | (May 9th, 1930) |
| and all parts of the British Empire which are not separate Members of the League of Nations | |
| Southern Rhodesia | (October 14th, 1931 a) |
| Canada | (August 23rd, 1930) |
| Australia | (April 13th, 1932 a) |
| Union of South Africa | (May 1st, 1930) |
| (including the mandated territory of South West Africa | |
| Ireland | (September 15th, 1930) |
| India | (May 15th, 1931 a) |
| Bulgaria | (November 29th, 1929) |
| Chile | (November 20th, 1934 a) |
| Cuba | (August 17th, 1932 a) |
| Czechoslovakia2 | (February 19th, 1931) |
| Denmark | (September 9th, 1929) |
| Egypt | (June 27th, 1930) |
| Finland | (September 23rd, 1938) |
| France | (February 1st, 1933) |
| Greece | (September 18th, 1930) |
| Italy | (June 11th, 1931) |
| Latvia | (July 5th, 1937) |
| Lithuania | (April 2nd, 1938 a) |
| Netherlands | (September 13th, 1932) |
| This ratification applies only to the territory of the Netherlands in Europe; the Netherlands do not intend to assume, at present, any obligation as regards the whole of the Netherlands overseas territories. | |
| Netherlands Indies | (May 5th, 1933 a) |
| Norway | (March 20th, 1929) |
| Poland | (July 23rd, 1931) |
| Portugal | (October 23rd, 1931) |
| Romania | (June 22nd, 1931) |
| Sweden | (February 17th, 1930) |
| Switzerland | (July 10th, 1930) |
Brazil | Estonia | Germany | Hungary | Yugoslavia (former)3 | |
| Participant | Ratification, Succession (d) |
| Belgium | 5 May 1950 |
| Czech Republic | 30 Dec 1993 d |
| Japan | 3 Sep 1952 |
|
|
1. See League of Nations, Treaty Series, vol. 110, p.171.
2. See note 1 under "Czech Republic" and note 1 under "Slovakia" in the "Historical Information" section in the front matter of this volume.
3. See note 1 under "Bosnia and Herzegovina", "Croatia", "former Yugoslavia", "Slovenia", "The Former Yugoslav Republic of Macedonia" and "Yugoslavia" in the "Historical Information" section in the front matter of this volume.