| Country | Action | Action Date | Effective Date |
|---|
| AUSTRALIA | Signature | 13/11/1968 | 13/11/1968 |
| CAMBODIA | Signature | 13/11/1968 | 13/11/1968 |
| CANADA | Signature | 13/11/1918 | 13/11/1968 |
| DENMARK | Signature | 09/04/1969 | |
| FRANCE | Signature | 09/04/1969 | |
| GERMANY FEDERAL REPUBLIC | Signature | 13/11/1968 | 13/11/1968 |
| INDIA | Signature | 13/11/1968 | 13/11/1968 |
| ITALY | Signature | 13/11/1968 | 13/11/1968 |
| JAPAN | Signature | 13/11/1968 | 13/11/1968 |
| Land Berlin | Extension | 13/11/1968 | 13/11/1968 |
| NETHERLANDS THE | Signature | 13/11/1968 | 13/11/1968 |
| PAKISTAN | Signature | 13/11/1968 | 13/11/1968 |
| PHILIPPINES | Signature | 13/11/1968 | 13/11/1968 |
| UNITED KINGDOM | Signature | 13/11/1968 | |
| UNITED KINGDOM | Signature | 13/11/1968 | 13/11/1968 |