| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| AUSTRALIA | Definitive Signature | 06/10/1964 | |
| FRANCE | Signature | 06/10/1964 | |
| FRANCE | Acceptance | 15/07/1965 | |
| NAURU | Accession | 24/07/1969 | |
| NEW ZEALAND | Definitive Signature | 06/10/1964 | |
| UNITED KINGDOM | Signature | 06/10/1964 | |
| UNITED KINGDOM | Definitive Signature | 06/10/1964 | |
| UNITED KINGDOM | Withdrawal | 01/01/1995 | |
| UNITED STATES OF AMERICA | Definitive Signature | 06/10/1964 |