| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| FRANCE | Signature | 30/10/1946 | |
| FRANCE | Approval | 11/12/1946 | |
| NETHERLANDS THE | Signature | 30/10/1946 | |
| NETHERLANDS THE | Approval | 06/08/1948 | |
| UNITED KINGDOM | Signature | 30/10/1946 | |
| UNITED KINGDOM | Ratification | 04/03/1947 | |
| UNITED KINGDOM | Approval | 04/03/1947 | |
| UNITED STATES OF AMERICA | Signature | 30/10/1946 | |
| UNITED STATES OF AMERICA | Approval | 08/03/1948 |