| Country | Action | Action Date | Effective Date |
|---|
| ALGERIA | Signature | 27/06/1967 | |
| ARGENTINA | Signature | 30/06/1967 | |
| ARGENTINA | Ratification | 25/04/1968 | |
| BELGIUM | Signature | 15/06/1967 | |
| DOMINICAN REPUBLIC | Accession | 21/12/1967 | |
| EGYPT | Signature | 19/05/1967 | |
| EGYPT | Ratification | 20/03/1968 | |
| FRANCE | Signature | 28/06/1967 | |
| GREECE | Signature | 23/06/1967 | |
| GREECE | Ratification | 02/12/1968 | |
| ISRAEL | Signature | 31/05/1967 | |
| ISRAEL | Ratification | 25/11/1967 | |
| ITALY | Signature | 05/06/1967 | |
| LIBYA | Signature | 07/06/1967 | |
| MOROCCO | Signature | 27/06/1967 | |
| MOROCCO | Ratification | 13/12/1968 | |
| PORTUGAL | Signature | 23/06/1967 | |
| PORTUGAL | Ratification | 20/11/1967 | |
| SPAIN | Signature | 10/06/1967 | |
| SPAIN | Ratification | 25/11/1967 | |
| SYRIA | Accession | 30/07/1968 | |
| TUNISIA | Signature | 30/05/1967 | |
| TUNISIA | Ratification | 21/12/1967 | |
| TURKEY | Signature | 13/06/1967 | |
| TURKEY | Ratification | 01/03/1968 | |
| UNITED KINGDOM | Signature | 27/06/1967 | |