| Country | Action | Action Date | Effective Date |
|---|
| ARGENTINE REPUBLIC | Signature | 02/12/1946 | |
| AUSTRALIA | Signature | 02/12/1946 | |
| BRAZIL | Signature | 02/12/1946 | |
| CANADA | Signature | 02/12/1946 | |
| CHILE | Signature | 02/12/1946 | |
| DENMARK | Signature | 02/12/1946 | |
| FRANCE | Signature | 02/12/1946 | |
| ICELAND | Signature | 02/12/1946 | |
| IRELAND, REPUBLIC OF | Signature | 02/12/1946 | |
| NETHERLANDS THE | Signature | 02/12/1946 | |
| NEW ZEALAND | Signature | 02/12/1946 | |
| NORWAY | Signature | 02/12/1946 | |
| PERU | Signature | 02/12/1946 | |
| PORTUGAL | Signature | 02/12/1946 | |
| SOUTH AFRICA | Signature | 02/12/1946 | |
| SOVIET UNION | Signature | 02/12/1946 | |
| SWEDEN | Signature | 02/12/1946 | |
| UNITED KINGDOM | Signature | 02/12/1946 | |
| UNITED STATES OF AMERICA | Signature | 02/12/1946 | |