| Country | Action | Action Date | Effective Date |
|---|
| AUSTRALIA | Signature | 29/08/1947 | |
| BELGIUM | Signature | 29/08/1947 | |
| BRAZIL | Signature | 29/08/1947 | |
| CUBA | Signature | 29/08/1947 | |
| CZECHOSLOVAKIA | Signature | 29/08/1947 | |
| DOMINICAN REPUBLIC | Signature | 29/08/1947 | |
| FRANCE | Signature | 29/08/1947 | |
| HAYTI | Signature | 29/08/1947 | |
| NETHERLANDS THE | Signature | 29/08/1947 | |
| PERU | Signature | 29/08/1947 | |
| PHILIPPINES | Signature | 29/08/1947 | |
| POLAND | Signature | 29/08/1947 | |
| PORTUGAL | Signature | 29/08/1947 | |
| SOUTH AFRICA | Signature | 29/08/1947 | |
| UNITED KINGDOM | Signature | 29/08/1947 | |
| UNITED STATES OF AMERICA | Signature | 29/08/1947 | |
| UNITED STATES OF AMERICA | Ratification | 25/05/1948 | |
| YUGOSLAVIA | Signature | 29/08/1947 | |