| Country | Action | Action Date | Effective Date |
|---|
| AUSTRALIA | Signature | 26/11/1945 | |
| AUSTRALIA | Ratification | 23/07/1946 | |
| CANADA | Signature | 26/11/1945 | |
| CANADA | Ratification | 31/12/1946 | |
| DENMARK | Signature | 26/11/1945 | |
| DENMARK | Ratification | 10/04/1946 | |
| FRANCE | Signature | 26/11/1945 | |
| FRANCE | Ratification | 24/10/1946 | |
| ICELAND | Accession | 12/03/1947 | |
| MEXICO | Signature | 26/11/1945 | |
| MEXICO | Ratification | 20/04/1948 | |
| NETHERLANDS THE | Signature | 26/11/1945 | |
| NETHERLANDS THE | Ratification | 06/03/1948 | |
| NEW ZEALAND | Signature | 26/11/1945 | |
| NEW ZEALAND | Ratification | 07/03/1946 | |
| NORWAY | Signature | 26/11/1945 | |
| NORWAY | Ratification | 04/04/1946 | |
| PANAMA | Accession | 16/06/1948 | |
| SOUTH AFRICA | Signature | 26/11/1945 | |
| SOUTH AFRICA | Ratification | 11/12/1946 | |
| SOVIET UNION | Accession | 25/11/1946 | |
| UNITED KINGDOM | Signature | 26/11/1945 | |
| UNITED KINGDOM | Ratification | 29/03/1946 | |
| UNITED STATES OF AMERICA | Signature | 26/11/1945 | |
| UNITED STATES OF AMERICA | Ratification | 30/08/1946 | |