| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| AUSTRALIA | Definitive Signature | 19/09/1960 | |
| CANADA | Definitive Signature | 19/09/1960 | |
| GERMANY FEDERAL REPUBLIC | Definitive Signature | 19/09/1960 | |
| INTERNATIONAL BANK FOR RECONSTRUCTION AND DEVELOPMENT | Definitive Signature | 19/09/1960 | |
| NEW ZEALAND | Definitive Signature | 19/09/1960 | |
| PAKISTAN | Definitive Signature | 19/09/1960 | |
| UNITED KINGDOM | Signature | 19/09/1960 | |
| UNITED KINGDOM | Definitive Signature | 19/09/1960 | |
| UNITED STATES OF AMERICA | Definitive Signature | 19/09/1960 |