| Country | Action | Action Date | Effective Date |
|---|
| Aden Colony | Extension | 30/05/1940 | |
| Antigua | Extension | 30/05/1940 | |
| Ascension Island | Extension | 30/05/1940 | |
| Bahamas | Extension | 30/05/1940 | |
| Basutoland | Extension | 30/05/1940 | |
| Bechuanaland | Extension | 30/05/1940 | |
| BELGIUM | Signature | 10/02/1938 | |
| BELGIUM | Reservation | 10/02/1938 | |
| BELGIUM | Ratification | 01/09/1938 | |
| British Guiana | Extension | 30/05/1940 | |
| British Honduras | Extension | 30/05/1940 | |
| British Solomon Islands | Extension | 30/05/1940 | |
| British Virgin Islands | Extension | 30/05/1940 | |
| Cameroons | Extension | 30/05/1940 | |
| Ceylon | Extension | 30/05/1940 | |
| Cyprus | Extension | 30/05/1940 | |
| DENMARK | Signature | 10/02/1938 | |
| DENMARK | Reservation | 10/02/1938 | |
| Dominica | Extension | 30/05/1940 | |
| Falkland Island Dependencies | Extension | 30/05/1940 | |
| Falkland Islands | Extension | 30/05/1940 | |
| Fiji | Extension | 30/05/1940 | |
| FRANCE | Signature | 10/02/1938 | |
| FRANCE | Reservation | 10/02/1938 | |
| FRANCE | Ratification | 19/03/1945 | |
| FRANCE | Reservation | 19/03/1945 | |
| Gilbert And Ellice Islands | Extension | 30/05/1940 | |
| Gold Coast | Extension | 30/05/1940 | |
| Grenada | Extension | 30/05/1940 | |
| Hong Kong | Extension | 30/05/1940 | |
| Kenya | Extension | 30/05/1940 | |
| Leeward Islands | Extension | 30/05/1940 | |
| Malay States | Extension | 30/05/1940 | |
| Mauritius | Extension | 30/05/1940 | |
| Montserrat | Extension | 30/05/1940 | |
| NETHERLANDS THE | Signature | 10/02/1938 | |
| NETHERLANDS THE | Reservation | 10/02/1938 | |
| Nigeria | Extension | 30/05/1940 | |
| NORWAY | Signature | 10/02/1938 | |
| NORWAY | Reservation | 10/02/1938 | |
| Nyasaland | Extension | 30/05/1940 | |
| Sierra Leone | Extension | 30/05/1940 | |
| Somaliland Protectorate | Extension | 30/05/1940 | |
| SPAIN | Signature | 10/02/1938 | |
| SPAIN | Reservation | 10/02/1938 | |
| St Helena | Extension | 30/05/1940 | |
| St Lucia | Extension | 30/05/1940 | |
| St Vincent | Extension | 30/05/1940 | |
| St. Christopher And Nevis | Extension | 30/05/1940 | |
| Straits Settlements | Extension | 30/05/1940 | |
| Swaziland | Extension | 30/05/1940 | |
| The Gambia | Extension | 30/05/1940 | |
| Trinidad And Tobago | Extension | 30/05/1940 | |
| Uganda | Extension | 30/05/1940 | |
| UNITED KINGDOM | Reservation | 10/02/1938 | |
| UNITED KINGDOM | Signature | 10/02/1938 | |
| UNITED KINGDOM | Ratification | 26/09/1938 | |
| UNITED KINGDOM | Reservation | 26/09/1938 | |
| Zanzibar | Extension | 30/05/1940 | |