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| Austria (September 11th, 1924) |
| Belgium (October 4th, 1924) |
| Brazil (July 10th, 1929) |
| British Empire 2 (August 29th, 1924) It is stated in the instrument of ratification that this ratification shall not be deemed to apply in the case of the Dominion of Canada, the Commonwealth of Australia (or any territory under its authority) or the Irish Free State or in the case of India, and that in pursuance of the power reserved in Article XXIX of the Convention, it shall not be deemed to apply in the case of the Island of Newfoundland or of the territories of Iraq and Nauru, in respect of which His Britannic Majesty has accepted a mandate. It does not apply to the Sudan. Burma 3 |
| Australia (March 13th, 1925) Excluding Papua, Norfolk Island and the Mandated Territory of New Guinea |
| New Zealand (August 29th, 1924) Includes the mandated territory of Western Samoa. |
| Union of South Africa (August 29th, 1924) |
| India (March 13th, 1925) |
| Bulgaria (December 10th, 1926) |
| China 2,4 (February 23rd, 1926) |
| Czechoslovakia (February 10th, 1927) |
| Denmark (May 17th, 1924) |
| Egypt (March 23rd, 1925) |
| Estonia (February 28th, 1930 a) |
| Finland (May 23rd, 1928) |
| France (September 13th, 1926) Does not apply to the Colonies under its sovereignty. Morocco (French Protectorate) (November 8th, 1926) Tunis (November 8th, 1926) Syria and Lebanon (March 9th, 1933 a) |
| Germany 5 (August 1st, 1925) |
| Greece (July 6th, 1927) |
| Hungary (February 23rd, 1926) |
| Iran (May 8th, 1925 a) |
| Iraq (May 3rd, 1934 a) |
| Italy (June 13th, 1924) |
| Latvia (September 28th, 1931 a) |
| Luxembourg (June 10th, 1927) |
| The Netherlands (including the Netherlands Indies, Surinam and Curaçao ) (May 30th, 1925) |
| Norway (September 7th, 1926) |
| Poland (September 4th, 1931) |
| Romania (December 23rd, 1925) Under the same reservations as those formulated by the other Governments and inserted in Article 6 of the Protocol, the Royal Government understands that Article 22 of the Convention confers the right to have recourse to the procedure provided for in this Article for questions of a general nature solely on the High Contracting Parties, private persons being only entitled to appeal to their own judicial authorities in case any dispute arises with the authorities of the Kingdom. |
| Sweden (February 12th, 1926) |
| Switzerland (January 3rd, 1927) |
| Thailand (May 19th, 1925) |
| Yugoslavia (former) 6 (May 2nd, 1929) |