| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| BELGIUM | Signature | 12/12/1946 | |
| CZECHOSLOVAKIA | Signature | 12/12/1946 | |
| DENMARK | Signature | 12/12/1946 | |
| FRANCE | Signature | 12/12/1946 | |
| GREECE | Signature | 12/12/1946 | |
| LUXEMBOURG | Signature | 12/12/1946 | |
| NETHERLANDS THE | Signature | 12/12/1946 | |
| NORWAY | Signature | 12/12/1946 | |
| POLAND | Signature | 12/12/1946 | |
| TURKEY | Signature | 12/12/1946 | |
| UNITED KINGDOM | Signature | 12/12/1946 | |
| UNITED STATES OF AMERICA | Signature | 12/12/1946 |