| Country | Action | Action Date | Effective Date |
|---|
| ARGENTINA | Signature | 04/10/1943 | |
| BOLIVIA | Signature | 04/10/1943 | |
| BRAZIL | Signature | 04/10/1943 | |
| CHILE | Signature | 04/10/1943 | |
| COLOMBIA | Signature | 04/10/1943 | |
| COSTA RICA | Signature | 04/10/1943 | |
| CUBA | Signature | 04/10/1943 | |
| DOMINICAN REPUBLIC | Signature | 04/10/1943 | |
| ECUADOR | Signature | 04/10/1943 | |
| GUATEMALA | Signature | 04/10/1943 | |
| HAYTI | Signature | 04/10/1943 | |
| HONDURAS | Signature | 04/10/1943 | |
| MEXICO | Signature | 04/10/1943 | |
| NICARAGUA | Signature | 04/10/1943 | |
| PANAMA | Signature | 04/10/1943 | |
| PARAGUAY | Signature | 04/10/1943 | |
| PERU | Signature | 04/10/1943 | |
| SALVADOR | Signature | 04/10/1943 | |
| UNITED KINGDOM | | | |
| UNITED STATES OF AMERICA | Signature | 04/10/1943 | |
| URUGUAY | Signature | 04/10/1943 | |
| VENEZUELA | Signature | 04/10/1943 | |