| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| Australia | Signature | 25/03/1936 | |
| Australia | Ratification | 29/07/1937 | |
| Canada | Signature | 25/03/1936 | |
| Canada | Ratification | 29/07/1937 | |
| FRANCE | Signature | 25/03/1936 | |
| FRANCE | Ratification | 24/06/1937 | |
| INDIA | Signature | 29/07/1937 | |
| ITALY | Accession | 02/12/1938 | |
| New Zealand | Signature | 25/03/1936 | |
| New Zealand | Ratification | 29/07/1937 | |
| UNITED KINGDOM | Signature | 25/03/1936 | |
| UNITED KINGDOM | Ratification | 29/07/1937 | |
| UNITED STATES OF AMERICA | Signature | 25/03/1936 | |
| UNITED STATES OF AMERICA | Ratification | 02/07/1936 |