| Country | Action | Action Date | Effective Date |
|---|
| ALBANIA | Signature | 15/03/1948 | |
| AUSTRIA | Signature | 15/03/1948 | |
| BELGIUM | Signature | 15/03/1948 | |
| CANADA | Signature | 15/03/1948 | |
| CZECHOSLOVAKIA | Signature | 15/03/1948 | |
| DENMARK | Signature | 15/03/1948 | |
| EGYPT | Signature | 15/03/1948 | |
| FRANCE | Signature | 15/03/1948 | |
| GREECE | Signature | 15/03/1948 | |
| INDIA | Signature | 15/03/1948 | |
| LUXEMBOURG | Signature | 15/03/1948 | |
| NETHERLANDS THE | Signature | 15/03/1948 | |
| NEW ZEALAND | Signature | 15/03/1948 | |
| NORWAY | Signature | 15/03/1948 | |
| PAKISTAN | Signature | 15/03/1948 | |
| SOUTH AFRICA | Signature | 15/03/1948 | |
| UNITED KINGDOM | Signature | 15/03/1948 | |
| UNITED STATES OF AMERICA | Signature | 15/03/1948 | |
| YUGOSLAVIA | Signature | 15/03/1948 | |