| Country | Action | Action Date | Effective Date |
|---|
| IRAN | Accession | 03/11/1955 | |
| IRAN | Declaration | 28/07/1958 | |
| IRAN | Withdrawal | 12/03/1979 | |
| IRAQ | Signature | 24/02/1955 | |
| IRAQ | Denunciation | 24/03/1959 | 25/03/1959 |
| PAKISTAN | Accession | 23/09/1955 | |
| PAKISTAN | Declaration | 28/07/1958 | |
| PAKISTAN | Withdrawal | 12/03/1979 | |
| TURKEY | Termination | | 30/04/1979 |
| TURKEY | Signature | 15/04/1955 | |
| TURKEY | Declaration | 28/07/1958 | |
| UNITED KINGDOM | Termination | | 30/04/1979 |
| UNITED KINGDOM | Accession | 05/04/1955 | |
| UNITED KINGDOM | Ratification | 05/04/1955 | |
| UNITED KINGDOM | Declaration | 28/07/1958 | |
| UNITED STATES OF AMERICA | Declaration | 28/07/1958 | |