| Country | Action | Action Date | Effective Date |
|---|
| AFGHANISTAN | Signature | 05/07/1947 | |
| AFGHANISTAN | Ratification | 07/05/1948 | |
| ALBANIA | Signature | 05/07/1947 | |
| ALBANIA | Ratification | 11/06/1949 | |
| ALGERIA | Signature | 05/07/1947 | |
| ARGENTINE REPUBLIC | Signature | 05/07/1947 | |
| AUSTRIA | Signature | 05/07/1947 | |
| AUSTRIA | Ratification | 25/08/1948 | |
| Belgian Congo | Extension | 30/06/1949 | |
| BELGIUM | Signature | 05/07/1947 | |
| BELGIUM | Ratification | 30/06/1949 | |
| BOLIVIA | Signature | 05/07/1947 | |
| BRAZIL | Signature | 05/07/1947 | |
| BULGARIA | Signature | 05/07/1947 | |
| BULGARIA | Ratification | 20/04/1948 | |
| CHILE | Signature | 05/07/1947 | |
| CHILE | Ratification | 11/08/1950 | |
| CHINA | Signature | 05/07/1947 | |
| CHINA | Ratification | 05/02/1949 | |
| COLOMBIA | Signature | 05/07/1947 | |
| CUBA | Signature | 05/07/1947 | |
| Curacao | Extension | 05/07/1947 | |
| CZECHOSLOVAKIA | Signature | 05/07/1947 | |
| CZECHOSLOVAKIA | Ratification | 30/08/1948 | |
| DENMARK | Signature | 05/07/1947 | |
| DOMINICAN REPUBLIC | Signature | 05/07/1947 | |
| East Indies | Signature | 05/07/1947 | |
| ECUADOR | Signature | 05/07/1947 | |
| EGYPT | Signature | 05/07/1947 | |
| EGYPT | Ratification | 14/06/1949 | |
| ETHIOPIA | Signature | 05/07/1947 | |
| FINLAND | Signature | 05/07/1947 | |
| FINLAND | Ratification | 30/06/1948 | |
| FRANCE | Signature | 05/07/1947 | |
| FRANCE | Ratification | 01/10/1949 | |
| GREECE | Signature | 05/07/1947 | |
| GREECE | Ratification | 01/09/1951 | |
| GUATEMALA | Signature | 05/07/1947 | |
| HAYTI | Signature | 05/07/1947 | |
| HONDURAS | Signature | 05/07/1947 | |
| HUNGARY | Signature | 05/07/1947 | |
| HUNGARY | Ratification | 05/04/1950 | |
| ICELAND | Signature | 05/07/1947 | |
| INDIA | Signature | 05/07/1947 | |
| INDIA | Ratification | 12/03/1949 | |
| INDO-CHINA | Signature | 05/07/1947 | |
| Indonesia | Extension | 05/07/1947 | |
| IRAN | Signature | 05/07/1947 | |
| IRAQ | Signature | 05/07/1947 | |
| ITALY | Signature | 05/07/1947 | |
| ITALY | Ratification | 07/01/1949 | |
| JAPAN | Accession | | 06/01/1950 |
| JORDAN | Accession | 07/06/1951 | |
| KOREA | Accession | 30/11/1949 | |
| LAOS | Accession | 20/05/1952 | |
| LEBANON | Signature | 05/07/1947 | |
| LUXEMBOURG | Signature | 05/07/1947 | |
| LUXEMBOURG | Ratification | 14/04/1949 | |
| MEXICO | Signature | 05/07/1947 | |
| MEXICO | Ratification | 07/12/1949 | |
| MOROCCO | Signature | 05/07/1947 | |
| MOROCCO | Ratification | 01/10/1949 | |
| Morocco | Extension | 27/01/1951 | |
| NETHERLANDS THE | Signature | 05/07/1947 | |
| NETHERLANDS THE | Ratification | 25/08/1948 | |
| New Guinea | Extension | 23/08/1950 | |
| NORWAY | Signature | 05/07/1947 | |
| NORWAY | Ratification | 24/08/1948 | |
| PAKISTAN | Accession | 01/05/1948 | |
| PANAMA | Signature | 05/07/1947 | |
| PARAGUAY | Signature | 05/07/1947 | |
| PERU | Signature | 05/07/1947 | |
| PERU | Ratification | 14/04/1950 | |
| POLAND | Signature | 05/07/1947 | |
| POLAND | Ratification | 06/01/1950 | |
| PORTUGAL | Signature | 05/07/1947 | |
| ROUMANIA | Signature | 05/07/1947 | |
| ROUMANIA | Ratification | 27/08/1948 | |
| SALVADOR | Signature | 05/07/1947 | |
| SAN MARINO | Signature | 05/07/1947 | |
| SAN MARINO | Ratification | 16/06/1949 | |
| SAUDI ARABIA | Signature | 05/07/1947 | |
| SIAM | Signature | 05/07/1947 | |
| SIAM | Ratification | 14/09/1949 | |
| SPAIN | Accession | 27/01/1951 | |
| Surinam | Extension | 05/07/1947 | |
| SWEDEN | Signature | 05/07/1947 | |
| SWEDEN | Ratification | 12/06/1948 | |
| SWITZERLAND | Signature | 05/07/1947 | |
| SWITZERLAND | Ratification | 02/06/1948 | |
| SYRIA | Signature | 05/07/1947 | |
| TUNISIA | Signature | 05/07/1947 | |
| TUNISIA | Ratification | 01/10/1949 | |
| TURKEY | Signature | 05/07/1947 | |
| TURKEY | Ratification | 20/06/1950 | |
| UNITED KINGDOM | | | |
| URUGUAY | Signature | 05/07/1947 | |
| VATICAN CITY | Signature | 05/07/1947 | |
| VENEZUELA | Signature | 05/07/1947 | |
| VENEZUELA | Ratification | 23/02/1951 | |
| VIETNAM | Signature | 05/07/1947 | |
| VIETNAM | Accession | 10/03/1952 | |
| West Indies | Extension | 05/07/1947 | |
| YUGOSLAVIA | Signature | 05/07/1947 | |
| YUGOSLAVIA | Ratification | 27/07/1948 | |