| Country | Action | Action Date | Effective Date |
|---|
| BELGIUM | Signature | 13/05/1936 | |
| BELGIUM | Reservation | 13/05/1936 | |
| CHINA | Signature | 13/05/1936 | |
| CHINA | Reservation | 13/05/1936 | |
| EGYPT | Accession | 07/04/1938 | |
| ESTONIA | Signature | 13/05/1936 | |
| ESTONIA | Reservation | 13/05/1936 | |
| FINLAND | Signature | 13/05/1936 | |
| FINLAND | Reservation | 13/05/1936 | |
| FRANCE | Signature | 13/05/1936 | |
| FRANCE | Reservation | 13/05/1936 | |
| INDIA | Signature | 13/05/1936 | |
| INDIA | Reservation | 13/05/1936 | |
| INDIA | Ratification | 23/11/1938 | |
| IRAN | Accession | 15/12/1939 | |
| LATVIA | Signature | 13/05/1936 | |
| MONACO | Signature | 13/05/1936 | |
| MONACO | Ratification | 13/05/1936 | |
| MOROCCO | Signature | 13/05/1936 | |
| MOROCCO | Reservation | 13/05/1936 | |
| SOUTH AFRICA | Accession | 15/12/1937 | |
| SOVIET UNION | Signature | 13/05/1936 | |
| SOVIET UNION | Reservation | 13/05/1936 | |
| SWEDEN | Signature | 13/05/1936 | |
| SWEDEN | Reservation | 13/05/1936 | |
| TUNIS | Signature | 13/05/1936 | |
| TUNIS | Reservation | 13/05/1936 | |
| TURKEY | Signature | 13/05/1936 | |
| TURKEY | Reservation | 13/05/1936 | |
| TURKEY | Ratification | 19/03/1941 | |
| UNITED KINGDOM | Signature | 13/05/1936 | |
| UNITED KINGDOM | Reservation | 13/05/1936 | |
| UNITED KINGDOM | Ratification | 23/02/1938 | |