| Country | Action | Action Date | Effective Date |
|---|
| AUSTRALIA | Signature | 06/09/1949 | |
| BELGIUM | Signature | 23/09/1949 | |
| BRAZIL | Signature | 02/09/1949 | |
| CUBA | Signature | 26/09/1949 | |
| CZECHOSLOVAKIA | Signature | 30/09/1949 | |
| DOMINICAN REPUBLIC | Signature | 06/09/1949 | |
| FRANCE | Signature | 30/09/1949 | |
| HAYTI | Signature | 07/09/1949 | |
| NETHERLANDS THE | Signature | 09/09/1949 | |
| PERU | Signature | 21/09/1949 | |
| PHILIPPINES | Signature | 29/09/1949 | |
| POLAND | Signature | 29/09/1949 | |
| PORTUGAL | Signature | 30/09/1949 | |
| SOUTH AFRICA | Signature | 16/09/1949 | |
| UNITED KINGDOM | Signature | 06/09/1949 | |
| UNITED STATES OF AMERICA | Signature | 19/09/1949 | |
| UNITED STATES OF AMERICA | Ratification | 07/09/1950 | |
| YUGOSLAVIA | Signature | 28/09/1949 | |