| Country | Action | Action Date | Effective Date |
|---|
| AUSTRIA | Signature | 18/11/1963 | |
| CAMBODIA | Signature | 09/01/1964 | |
| CUBA | Signature | 18/02/1964 | |
| FRANCE | Signature | 09/11/1963 | |
| GREECE | Signature | 24/04/1964 | |
| INDIA | Signature | 09/11/1963 | |
| ITALY | Signature | 09/11/1963 | |
| JAPAN | Signature | 03/03/1964 | |
| LIBYA | Signature | 14/11/1963 | |
| MALAYSIA | Signature | 01/10/1964 | |
| MALI | Signature | 09/11/1963 | |
| NETHERLANDS THE | Signature | 28/05/1964 | |
| NETHERLANDS THE | Ratification | 25/02/1965 | |
| NIGERIA | Signature | 06/03/1964 | |
| PHILIPPINES | Signature | 20/02/1964 | |
| SPAIN | Signature | 09/11/1963 | |
| SPAIN | Ratification | 05/03/1965 | |
| SWEDEN | Signature | 12/03/1965 | |
| UNITED KINGDOM | Signature | 09/11/1963 | |
| YUGOSLAVIA | Signature | 09/11/1963 | |