| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| JAPAN | Signature | 28/10/1963 | |
| JAPAN | Acceptance | 28/10/1963 | |
| NETHERLANDS THE | Signature | 28/10/1963 | |
| NETHERLANDS THE | Acceptance | 28/10/1963 | |
| NORWAY | Signature | 28/10/1963 | |
| NORWAY | Acceptance | 28/10/1963 | |
| SOVIET UNION | Signature | 28/10/1963 | |
| UNITED KINGDOM | Signature | 28/10/1963 | |
| UNITED KINGDOM | Acceptance | 20/12/1963 |