| Country | Action | Action Date | Effective Date |
|---|
| Belgian Congo | Extension | 23/04/1954 | |
| BELGIUM | Signature | 19/09/1949 | |
| BELGIUM | Ratification | 23/04/1954 | |
| BELGIUM | Declaration | 23/04/1954 | |
| BOTSWANA | Accession | 03/01/1967 | |
| BOTSWANA | Reservation | 03/01/1967 | |
| BOTSWANA | Communication | 15/05/2003 | |
| CAMBODIA | Accession | 14/03/1956 | |
| CHILE | Accession | 10/08/1960 | |
| CUBA | Accession | 01/10/1952 | |
| DENMARK | Signature | 19/09/1949 | |
| DOMINICAN REPUBLIC | Signature | 19/09/1949 | |
| DOMINICAN REPUBLIC | Ratification | 15/08/1957 | |
| EGYPT | Signature | 19/09/1949 | |
| EGYPT | Ratification | 28/05/1957 | |
| FRANCE | Signature | 19/09/1949 | |
| FRANCE | Ratification | 15/09/1950 | |
| GUATEMALA | Accession | 10/01/1962 | |
| HAITI | Accession | 12/02/1958 | |
| INDIA | Signature | 19/09/1949 | |
| ITALY | Signature | 19/09/1949 | |
| ITALY | Ratification | 15/12/1952 | |
| LEBANON | Signature | 19/09/1949 | |
| LUXEMBOURG | Signature | 19/09/1949 | |
| LUXEMBOURG | Ratification | 17/10/1952 | |
| NETHERLANDS THE | Signature | 19/09/1949 | |
| NORWAY | Signature | 19/09/1949 | |
| PHILIPPINES | Signature | 19/09/1949 | |
| Ruanda Urundi | Extension | 23/04/1954 | |
| SOUTH AFRICA | Signature | 19/09/1949 | |
| SOUTH AFRICA | Ratification | 09/07/1952 | |
| SWEDEN | Signature | 19/09/1949 | |
| SWITZERLAND | Signature | 19/09/1949 | |
| TUNISIA | Accession | 08/11/1957 | |
| TURKEY | Accession | 17/01/1956 | |
| UGANDA | Accession | 15/04/1965 | |
| UNITED KINGDOM | Signature | 19/09/1949 | |
| UNITED KINGDOM | Ratification | 08/07/1957 | |
| UNITED KINGDOM | Reservation | 08/07/1957 | |
| UNITED KINGDOM | Declaration | 08/07/1957 | |
| UNITED STATES OF AMERICA | Signature | 19/09/1949 | |
| UNITED STATES OF AMERICA | Ratification | 30/08/1950 | |