| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| CANADA | Signature | 15/03/1946 | |
| CHILE | Signature | 15/03/1946 | |
| DENMARK | Signature | 15/03/1946 | |
| MEXICO | Signature | 15/03/1946 | |
| MEXICO | Ratification | 20/04/1948 | |
| NETHERLANDS THE | Signature | 15/03/1946 | |
| NEW ZEALAND | Signature | 15/03/1946 | |
| NORWAY | Signature | 15/03/1946 | |
| SOUTH AFRICA | Signature | 15/03/1946 | |
| SOUTH AFRICA | Ratification | 11/12/1946 | |
| UNITED KINGDOM | Signature | 15/03/1946 | |
| UNITED STATES OF AMERICA | Signature | 15/03/1946 |