| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| AUSTRALIA | Signature | 06/02/1922 | |
| BRITISH EMPIRE | Signature | 06/02/1922 | |
| BRITISH EMPIRE | Ratification | 04/08/1922 | |
| CANADA | Signature | 06/02/1922 | |
| FRANCE | Signature | 06/02/1922 | |
| INDIA | Signature | 06/02/1922 | |
| ITALY | Signature | 06/02/1922 | |
| JAPAN | Signature | 06/02/1922 | |
| NEW ZEALAND | Signature | 06/02/1922 | |
| SOUTH AFRICA | Signature | 06/02/1922 | |
| UNITED KINGDOM | Signature | 06/02/1922 | |
| UNITED STATES OF AMERICA | Signature | 06/02/1922 |