| Country | Action | Action Date | Effective Date |
|---|
| AUSTRALIA | Signature | 14/12/1939 | |
| BRAZIL | Signature | 19/07/1939 | |
| Burma | Application | 02/04/1940 | |
| DENMARK | Signature | 03/01/1939 | |
| DENMARK | Reservation | 03/01/1939 | |
| EGYPT | Signature | 24/03/1939 | |
| GREECE | Signature | 06/12/1938 | |
| INDIA | Signature | 28/09/1938 | |
| INDIA | Reservation | 28/09/1938 | |
| IRAQ | Signature | 10/04/1940 | |
| IRELAND, REPUBLIC OF | Signature | 08/03/1939 | |
| LATVIA | Signature | 20/06/1939 | |
| MONACO | Signature | 05/07/1939 | |
| Nauru | Extension | 14/12/1939 | |
| New Guinea | Extension | 14/12/1939 | |
| Newfoundland (UK) | Extension | 21/10/1939 | |
| Norfolk Island | Extension | 14/12/1939 | |
| NORWAY | Signature | 31/01/1939 | |
| Papua | Extension | 14/12/1939 | |
| POLAND | Signature | 07/08/1939 | |
| SOUTH AFRICA | Signature | 28/12/1938 | |
| Southern Rhodesia | Application | 15/04/1940 | |
| SWEDEN | Signature | 15/11/1938 | |
| SWITZERLAND | Signature | 17/11/1938 | |
| UNITED KINGDOM | Signature | 21/10/1939 | |