| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| BELGIUM | Signature | 30/12/1969 | 29/01/1970 |
| CANADA | Signature | 31/12/1969 | 30/01/1970 |
| GERMANY FEDERAL REPUBLIC | Signature | 21/10/1969 | 21/12/1969 |
| NETHERLANDS THE | Approval | 07/10/1969 | 21/12/1969 |
| UNITED KINGDOM | Signature | 21/11/1969 | |
| UNITED KINGDOM | Signature | 21/11/1969 | 21/12/1969 |
| UNITED STATES OF AMERICA | Approval | 21/11/1969 | 21/12/1969 |