| Country | Action | Action Date | Effective Date |
|---|
| AUSTRALIA | Signature | 14/09/1948 | |
| AUSTRALIA | Ratification | 25/02/1949 | |
| BELGIUM | Signature | 14/10/1948 | |
| BELGIUM | Withdrawal | 14/12/1951 | 15/06/1952 |
| BRAZIL | Signature | 14/10/1948 | |
| BRAZIL | Ratification | 03/08/1950 | |
| CANADA | Signature | 14/09/1948 | |
| CANADA | Signature | 14/10/1948 | |
| CANADA | Ratification | 13/12/1948 | |
| CANADA | Withdrawal | 14/12/1951 | 15/06/1952 |
| CEYLON | Signature | 14/09/1948 | |
| CEYLON | Signature | 14/10/1948 | |
| CEYLON | Withdrawal | 14/12/1951 | 15/06/1952 |
| CHINA | Signature | 18/01/1949 | |
| CHINA | Withdrawal | 04/02/1952 | 05/08/1952 |
| DENMARK | Signature | 08/09/1949 | |
| DENMARK | Withdrawal | 14/12/1951 | 15/12/1952 |
| DOMINICAN REPUBLIC | Signature | 07/09/1949 | |
| DOMINICAN REPUBLIC | Withdrawal | 20/12/1951 | 21/06/1952 |
| FRANCE | Signature | 14/10/1948 | |
| FRANCE | Withdrawal | 18/02/1952 | 19/08/1952 |
| GREECE | Signature | 07/02/1950 | |
| GREECE | Withdrawal | 20/02/1952 | 21/08/1952 |
| INDIA | Signature | 14/09/1948 | |
| INDIA | Signature | 14/10/1948 | |
| INDIA | Ratification | 01/11/1948 | |
| INDIA | Withdrawal | 14/12/1951 | 15/06/1952 |
| LUXEMBOURG | Signature | 14/10/1948 | |
| LUXEMBOURG | Withdrawal | 24/02/1952 | 25/08/1952 |
| NETHERLANDS THE | Signature | 14/10/1948 | |
| NETHERLANDS THE | Withdrawal | 14/12/1951 | 15/06/1952 |
| NORWAY | Signature | 14/10/1948 | |
| NORWAY | Withdrawal | 14/12/1951 | 15/06/1952 |
| PAKISTAN | Signature | 14/10/1948 | |
| PAKISTAN | Withdrawal | 14/12/1951 | 15/06/1952 |
| SOUTH AFRICA | Signature | 14/10/1948 | |
| SOUTH AFRICA | Ratification | 06/09/1950 | |
| SOUTH AFRICA | Withdrawal | 06/05/1952 | 07/11/1952 |
| SYRIA | Signature | 24/09/1949 | |
| UNITED KINGDOM | Signature | 14/10/1948 | |
| UNITED KINGDOM | Withdrawal | 14/12/1951 | 15/06/1952 |
| UNITED STATES OF AMERICA | Signature | 14/10/1948 | |
| UNITED STATES OF AMERICA | Withdrawal | 14/12/1951 | 15/06/1952 |