| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| AUSTRALIA | Signature | 26/10/1953 | |
| BELGIUM | Signature | 28/04/1954 | |
| CANADA | Signature | 16/10/1953 | |
| FRANCE | Signature | 18/11/1953 | |
| ITALY | Signature | 03/12/1953 | |
| JAPAN | Signature | 26/10/1953 | |
| NEW ZEALAND | Signature | 26/10/1953 | |
| PHILIPPINES | Signature | 11/12/1953 | |
| SOUTH AFRICA | Signature | 26/10/1953 | |
| UNITED KINGDOM | Signature | 26/10/1953 | |
| UNITED STATES OF AMERICA | Signature | 26/10/1953 |