| Entry into force: | 31 October 1922. |
| Registration: | 8 October 1921, No. 1731. |
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| Albania | (October 8th, 1921) |
| Austria | (November 15th, 1923) |
| To the full extent indicated under paragraph (a) of the Protocol. | |
| British Empire | (August 2nd, 1922) |
| In respect of the United Kingdom only accepting paragraph (a). | |
| Newfoundland | (August 2nd, 1922) |
| To the full extent indicated under paragraph (a). | |
| Nyasaland Protectorate and Tanganyika Territory | (August 2nd, 1922) |
| To the full extent indicated in paragraph (b). | |
| Bahamas, Barbados, British Guiana, British Solomon Islands, Ceylon, Cyprus, Fiji, Gambia Colony and Protectorate, Gibraltar, Gilbert and Ellice Islands Colony, Gold Coast (Ashanti and Northern Territories), Hong-Kong, Jamaica (including Turks and Caicos Islands and Cayman Islands), Kenya Colony and Protectorate, Leeward Islands, Malta, Mauritius, Nigeria Colony and Protectorate, Seychelles, Sierra Leone Colony and Protectorate, St. Helena, Straits Settlements, Tonga Islands, Trinidad and Tobago, Uganda Protectorate, Windward Islands (Grenada, St. Lucia and St. Vincent), Zanzibar | (August 2nd, 1922 a) |
| To the full extent indicated under paragraph (a). | |
| Federated Malay States: Perak, Selangor, Negri Sembilan and Pahang | (August 22nd, 1923 a) |
| To the full extent indicated under paragraph (a). | |
| Non-Federated Malay States: Brunei, Johore, Kedah, Perlis, Kelantan and Trengganu | (August 22nd, 1923 a) |
| To the full extent indicated under paragraph (a). | |
| Palestine | (January 28th, 1924 a) |
| To the full extent indicated in paragraph (a) of the Proto col. | |
| Bermuda | (December 27th, 1928 a) To the full extent indicated in paragraph (a). |
| New Zealand | (August 2nd, 1922) |
| Accepting paragraph (a). | |
| India | [August 2nd, 1922] |
| In respect of India only accepting paragraph (a). | |
| Chile | (March 19th, 1928) |
| Accepting paragraph (b). | |
| Czechoslovakia 2 | (September 8th, 1924) |
| Accepting paragraph (b). | |
| Denmark | (November 13th, 1922) |
| Accepting paragraph (a). | |
| Finland | (January 29th, 1923) |
| Accepting paragraph (b). | |
| Greece | (January 3rd, 1928) |
| Hungary | (May 18th, 1928 a) |
| To the full extent indicated in paragraph (a). | |
| Luxembourg | (March 19th, 1930) |
| To the full extent indicated in paragraph (a). | |
| Norway | (September 4th, 1923) |
| Accepting paragraph (a). | |
| Romania | (May 9th, 1924 a) |
| Is unable to accept any restriction of her liberty in administra tive matters on the waterways which are not of interna tional concern, that is to say, on purely national rivers, while at the same time accepting the principles of liberty in accordance with the laws of the country. | |
| Sweden | (September 15th, 1927) |
| Accepting paragraph (b). | |
| Thailand | (November 29th, 1922 a) |
| To the full extent indicated under paragraph (a). | |
| Turkey | (June 27th, 1933 a) |
| To the full extent indicated in paragraph (a). | |
Belgium | Accepting paragraph (a) | Peru | Portugal | Spain | Accepting paragraph (a) | |
| Participant | Accession (a), Succession (d) | Denunciation |
| Antigua and Barbuda2 | 25 Oct 1988 d | |
| Fiji2 | 15 Mar 1972 d | |
| India5 | 26 Mar 1956 | |
| Malta2 | 13 May 1966 d | |
| Morocco3 | 10 Oct 1972 a | |
| Nigeria4 | 3 Nov 1967 a | |
| Slovakia6 | 28 May 1993 d | |
| Solomon Islands2 | 3 Sep 1981 d |
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1. League of Nations, Treaty Series, vol. 7, p. 65.
2. To the full extent indicated in paragraph (a).
3. To the full extent indicated in paragraph (a) "on all navigable waterways".
4. To the full extent indicated in paragraph (a), namely, on condition of reciprocity on all navigable waterways.
5. With effect from 26 March 1957.