| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| AUSTRALIA | Signature | 25/07/1963 | |
| CANADA | Signature | 25/07/1963 | |
| CEYLON | Signature | 25/07/1963 | |
| CYPRUS | Signature | 25/07/1963 | |
| GHANA | Signature | 25/07/1963 | |
| INDIA | Signature | 25/07/1963 | |
| MALAYA | Signature | 25/07/1963 | |
| NEW ZEALAND | Signature | 25/07/1963 | |
| NIGERIA | Signature | 25/07/1963 | |
| Rhodesia And Nyasaland | Signature | 25/07/1963 | |
| UNITED KINGDOM | Signature | 25/07/1963 |