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