| Country | Action | Action Date | Effective Date |
|---|
| Belgian Congo | Extension | | 22/11/1947 |
| BELGIUM | Signature | 17/07/1947 | |
| BOLIVIA | Signature | 17/07/1947 | |
| BOLIVIA | Acceptance | 01/02/1948 | |
| CANADA | Signature | 17/07/1947 | |
| CZECHOSLOVAKIA | Signature | 17/07/1947 | |
| CZECHOSLOVAKIA | Acceptance | 26/02/1948 | |
| CZECHOSLOVAKIA | Ratification | 31/03/1949 | |
| DENMARK | Signature | 17/07/1947 | |
| DENMARK | Acceptance | 18/03/1948 | |
| DOMINICAN REPUBLIC | Signature | 17/07/1947 | |
| DOMINICAN REPUBLIC | Acceptance | 01/03/1948 | |
| ECUADOR | Signature | 17/07/1947 | |
| EGYPT | Accession | 30/07/1947 | |
| FRANCE | Signature | 17/07/1947 | |
| GUATEMALA | Signature | 17/07/1947 | |
| INDIA | Signature | 17/07/1947 | |
| IRAN | Signature | 17/07/1947 | |
| IRAQ | Signature | 17/07/1947 | |
| ITALY | Accession | 19/11/1950 | |
| LEBANON | Signature | 17/07/1947 | |
| LEBANON | Acceptance | 01/03/1948 | |
| LIBERIA | Communication | 08/03/1948 | |
| LUXEMBOURG | Signature | 17/07/1947 | |
| NETHERLANDS THE | Signature | 17/07/1947 | |
| NEW ZEALAND | Signature | 17/07/1947 | |
| NORWAY | Signature | 17/07/1947 | |
| PARAGUAY | Signature | 17/07/1947 | |
| POLAND | Signature | 17/07/1947 | |
| POLAND | Acceptance | 12/03/1948 | |
| Ruanda Urundi | Extension | | 22/11/1947 |
| SALVADOR | Accession | 19/11/1947 | |
| SAUDI ARABIA | Notification | 01/01/1905 | |
| SOUTH AFRICA | Signature | 17/07/1947 | |
| SYRIA | Signature | 17/07/1947 | |
| TURKEY | Signature | 17/07/1947 | |
| TURKEY | Acceptance | 01/03/1948 | |
| UNITED KINGDOM | Signature | 17/07/1947 | |
| UNITED STATES OF AMERICA | Signature | 17/07/1947 | |
| VENEZUELA | Signature | 17/07/1947 | |
| YUGOSLAVIA | Communication | 05/03/1948 | |