| Country | Action | Action Date | Effective Date |
|---|
| Aden Colony | Extension | 22/10/1941 | |
| Aden Protectorate | Extension | 22/10/1941 | |
| AFGHANISTAN | Accession | 06/05/1941 | |
| ALBANIA | Accession | 11/10/1940 | |
| Algeria | Extension | 23/05/1939 | |
| American Samoa | Extension | 24/02/1940 | |
| Antigua | Extension | 22/10/1941 | |
| ARGENTINE REPUBLIC | Signature | 23/05/1939 | |
| ARGENTINE REPUBLIC | Ratification | 30/07/1948 | |
| Ascension Island | Extension | 22/10/1941 | |
| AUSTRALIA | Signature | 23/05/1939 | |
| AUSTRALIA | Ratification | 28/03/1940 | |
| AUSTRALIA | Declaration | 28/03/1940 | |
| AUSTRIA | Accession | 28/08/1946 | |
| Bahamas | Extension | 22/10/1941 | |
| Barbados | Extension | 22/10/1941 | |
| Bechuanaland | Extension | 22/10/1941 | |
| Belgian Congo | Extension | 30/05/1940 | |
| BELGIUM | Signature | 23/05/1939 | |
| BELGIUM | Ratification | 30/05/1940 | |
| Bermuda | Extension | 22/10/1941 | |
| BOLIVIA | Signature | 23/05/1939 | |
| BRAZIL | Signature | 23/05/1939 | |
| British Guiana | Extension | 22/10/1941 | |
| British Honduras | Extension | 22/10/1941 | |
| British Solomon Islands | Extension | 22/10/1941 | |
| British Virgin Islands | Extension | 22/10/1941 | |
| BULGARIA | Signature | 23/05/1939 | |
| Burma | Extension | 22/10/1941 | |
| BYELORUSSIA S S R | Accession | 08/05/1947 | |
| CANADA | Signature | 23/05/1939 | |
| CANADA | Ratification | 27/09/1940 | |
| Canal Zone | Extension | 24/02/1940 | |
| Ceylon | Extension | 22/10/1941 | |
| CHILE | Signature | 23/05/1939 | |
| CHINA | Signature | 23/05/1939 | |
| COLOMBIA | Signature | 23/05/1939 | |
| COSTA RICA | Signature | 23/05/1939 | |
| CROATIA | Accession | 26/05/1941 | |
| CUBA | Signature | 23/05/1939 | |
| Curacao | Extension | 05/04/1940 | |
| Cyprus | Extension | 22/10/1941 | |
| CZECHOSLOVAKIA | Accession | 10/08/1945 | |
| DANZIG | Signature | 23/05/1939 | |
| DENMARK | Signature | 23/05/1939 | |
| Dominica | Extension | 22/10/1941 | |
| DOMINICAN REPUBLIC | Signature | 23/05/1939 | |
| East Indies | Extension | 05/04/1940 | |
| ECUADOR | Signature | 23/05/1939 | |
| EGYPT | Signature | 23/05/1939 | |
| EGYPT | Ratification | 16/08/1940 | |
| EL SALVADOR | Signature | 23/05/1939 | |
| ESTONIA | Signature | 23/05/1939 | |
| ETHIOPIA | Accession | 31/05/1944 | 01/01/1945 |
| Falkland Island Dependencies | Extension | 22/10/1941 | |
| Falkland Islands | Extension | 22/10/1941 | |
| Fiji | Extension | 22/10/1941 | |
| FINLAND | Signature | 23/05/1939 | |
| FRANCE | Signature | 23/05/1939 | |
| FRANCE | Ratification | 26/06/1941 | |
| French Colonies | Extension | 23/05/1939 | |
| Gibraltar | Extension | 22/10/1941 | |
| Gilbert And Ellice Islands | Extension | 22/10/1941 | |
| Gold Coast | Extension | 22/10/1941 | |
| GREECE | Signature | 23/05/1939 | |
| Grenada | Extension | 22/10/1941 | |
| GUATEMALA | Signature | 23/05/1939 | |
| HAYTI | Signature | 23/05/1939 | |
| HONDURAS | Signature | 23/05/1939 | |
| Hong Kong | Extension | 22/10/1941 | |
| HUNGARY | Accession | 24/05/1940 | |
| ICELAND | Signature | 23/05/1939 | |
| INDIA | Signature | 23/05/1939 | |
| INDIA | Ratification | 09/02/1942 | |
| INDO-CHINA | Accession | 04/12/1939 | |
| IRAN | Signature | 23/05/1939 | |
| IRAQ | Signature | 23/05/1939 | |
| IRELAND, REPUBLIC OF | Signature | 23/05/1939 | |
| ITALY | Accession | 30/12/1939 | |
| Jamaica | Extension | 22/10/1941 | |
| JAPAN | Signature | 23/05/1939 | |
| JAPAN | Ratification | 12/09/1940 | |
| Kenya | Extension | 22/10/1941 | |
| LATVIA | Signature | 23/05/1939 | |
| Lebanon | Extension | 23/05/1939 | |
| LEBANON | Accession | 27/11/1945 | |
| LIBERIA | Signature | 23/05/1939 | |
| LITHUANIA | Signature | 23/05/1939 | |
| LUXEMBOURG | Signature | 23/05/1939 | |
| Malay States, Federated | Extension | 22/10/1941 | |
| Malay States, Unfederated | Extension | 22/10/1941 | |
| Malta | Extension | 22/10/1941 | |
| Mauritius | Extension | 22/10/1941 | |
| MEXICO | Signature | 23/05/1939 | |
| MEXICO | Ratification | 11/07/1940 | |
| Montserrat | Extension | 22/10/1941 | |
| MOROCCO | Signature | 23/05/1939 | |
| MOROCCO | Ratification | 26/06/1941 | |
| Nauru | Extension | 28/03/1940 | |
| NETHERLANDS THE | Signature | 23/05/1939 | |
| NETHERLANDS THE | Ratification | 05/04/1940 | |
| New Guinea | Extension | 28/03/1940 | |
| NEW ZEALAND | Signature | 23/05/1939 | |
| NEW ZEALAND | Ratification | 05/10/1940 | |
| Newfoundland (UK) | Extension | 22/10/1941 | |
| NICARAGUA | Signature | 23/05/1939 | |
| Nigeria | Extension | 22/10/1941 | |
| Norfolk Island | Extension | 28/03/1940 | |
| North Borneo | Extension | 22/10/1941 | |
| Northern Rhodesia | Extension | 22/10/1941 | |
| NORWAY | Signature | 23/05/1939 | |
| Nyasaland | Extension | 22/10/1941 | |
| PAKISTAN | Accession | 29/08/1947 | |
| Palestine | Extension | 22/10/1941 | |
| PANAMA | Signature | 23/05/1939 | |
| Papua | Extension | 28/03/1940 | |
| PARAGUAY | Signature | 23/05/1939 | |
| PHILIPPINES | Signature | 23/05/1939 | |
| PHILIPPINES | Ratification | 13/05/1940 | |
| Pitcairn Islands | Extension | 22/10/1941 | |
| POLAND | Signature | 23/05/1939 | |
| POLAND | Ratification | 21/06/1948 | |
| PORTUGAL | Signature | 23/05/1939 | |
| PORTUGAL | Ratification | 19/06/1942 | |
| Portugal, Provinces In West Africa | Extension | 23/05/1939 | |
| Provs in E.Africa, Asia and Oceania | Extension | 23/05/1939 | |
| ROUMANIA | Signature | 23/05/1939 | |
| Ruanda Urundi | Extension | 30/05/1940 | |
| Sarawak | Extension | 22/10/1941 | |
| Seychelles | Extension | 22/10/1941 | |
| Sierra Leone | Extension | 22/10/1941 | |
| Somaliland Protectorate | Extension | 22/10/1941 | |
| SOUTH AFRICA | Signature | 23/05/1939 | |
| South Georgia And South Sandwich Islands | Extension | 22/10/1941 | |
| Southern Rhodesia | Extension | 22/10/1941 | |
| SOVIET UNION | Signature | 23/05/1939 | |
| SPAIN | Accession | 08/04/1940 | |
| St Helena | Extension | 22/10/1941 | |
| St Lucia | Extension | 22/10/1941 | |
| St Vincent | Extension | 22/10/1941 | |
| St. Christopher And Nevis | Extension | 22/10/1941 | |
| Straits Settlements | Extension | 22/10/1941 | |
| Surinam | Extension | 05/04/1940 | |
| SWEDEN | Signature | 23/05/1939 | |
| SWEDEN | Ratification | 16/09/1940 | |
| SWITZERLAND | Signature | 23/05/1939 | |
| SWITZERLAND | Ratification | 08/11/1940 | |
| Syria | Extension | 23/05/1939 | |
| SYRIA | Accession | 10/04/1946 | |
| Tanganyika | Extension | 22/10/1941 | |
| THAILAND | Signature | 23/05/1939 | |
| The Gambia | Extension | 22/10/1941 | |
| Tonga | Extension | 22/10/1941 | |
| Transjordan | Extension | 22/10/1941 | |
| TRANSJORDAN | Accession | 10/04/1947 | |
| Trinidad And Tobago | Extension | 22/10/1941 | |
| Tunisia | Extension | 23/05/1939 | |
| TURKEY | Signature | 23/05/1939 | |
| Uganda | Extension | 22/10/1941 | |
| UKRAINE S S R | Accession | 08/05/1947 | |
| UNITED KINGDOM | Signature | 23/05/1939 | |
| UNITED KINGDOM | Ratification | 22/10/1941 | |
| UNITED KINGDOM | Declaration | 22/10/1941 | |
| UNITED STATES OF AMERICA | Signature | 23/05/1939 | |
| UNITED STATES OF AMERICA | Ratification | 24/02/1940 | |
| URUGUAY | Signature | 23/05/1939 | |
| VATICAN CITY | Signature | 23/05/1939 | |
| VENEZUELA | Signature | 23/05/1939 | |
| West Indies | Extension | 05/04/1940 | |
| Western Samoa | Extension | 05/10/1940 | |
| YEMEN | Accession | 17/02/1940 | |
| YUGOSLAVIA | Signature | 23/05/1939 | |
| Zanzibar | Extension | 22/10/1941 | |