| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| BURMA | Signature | 23/07/1962 | |
| CAMBODIA | Signature | 23/07/1962 | |
| CANADA | Signature | 23/07/1962 | |
| CHINA P R | Signature | 23/07/1962 | |
| FRANCE | Signature | 23/07/1962 | |
| INDIA | Signature | 23/07/1962 | |
| LAOS | Signature | 23/07/1962 | |
| NORTH VIETNAM | Signature | 23/07/1962 | |
| POLAND | Signature | 23/07/1962 | |
| SOUTH VIETNAM | Signature | 23/07/1962 | |
| SOVIET UNION | Signature | 23/07/1962 | |
| THAILAND | Signature | 23/07/1962 | |
| UNITED KINGDOM | Signature | 23/07/1962 | |
| UNITED STATES OF AMERICA | Signature | 23/07/1962 |