| Country | Action | Action Date | Effective Date |
|---|
| ALGERIA | Accession | 31/10/1963 | |
| AUSTRALIA | Acceptance | 08/12/1949 | |
| AUSTRIA | Signature | 07/06/1950 | |
| BAHAMAS | Succession | 10/06/1976 | |
| BELGIUM | Signature | 20/05/1949 | |
| BELGIUM | Acceptance | 13/10/1952 | |
| BRAZIL | Signature | 04/05/1949 | |
| CAMEROON | Accession | 03/11/1961 | |
| CANADA | Acceptance | 04/05/1949 | |
| CENTRAL AFRICAN REPUBLIC | Acceptance | 04/09/1962 | |
| CEYLON | Acceptance | 14/07/1949 | |
| CHILE | Acceptance | 20/06/1949 | |
| CHINA | Acceptance | 04/05/1949 | |
| CONGO, DEMOCRATIC REPUBLIC OF | Accession | 15/10/1962 | |
| CUBA | Signature | 04/05/1949 | |
| CUBA | Acceptance | 04/08/1965 | |
| CUBA | Declaration | 04/08/1965 | |
| CYPRUS | Accession | 16/05/1963 | |
| CZECHOSLOVAKIA | Objection | 01/01/1905 | |
| CZECHOSLOVAKIA | Acceptance | 21/06/1951 | |
| DAHOMEY | Accession | 04/04/1962 | |
| DENMARK | Acceptance | 01/03/1950 | |
| EGYPT | Signature | 09/05/1949 | |
| EGYPT | Acceptance | 16/09/1949 | |
| FIJI | Succession | 12/06/1972 | |
| FINLAND | Acceptance | 31/10/1949 | |
| FRANCE | Statement | 01/01/1905 | |
| FRANCE | Acceptance | 05/05/1949 | |
| FRANCE | Statement | 08/07/1975 | |
| GERMAN DEMOCRATIC REPUBLIC | Declaration | 16/07/1974 | |
| GERMANY FEDERAL REPUBLIC | Accession | 29/05/1973 | |
| GHANA | Accession | 07/04/1958 | |
| HONG KONG SAR | Notification | 06/06/1997 | 01/07/1997 |
| HONG KONG SAR | Notification | 10/06/1997 | 01/07/1997 |
| ICELAND | Acceptance | 19/07/1961 | |
| INDIA | Signature | 12/05/1949 | |
| INDIA | Acceptance | 28/12/1949 | |
| IRAN | Signature | 28/12/1949 | |
| IRAN | Acceptance | 30/12/1959 | |
| IRAQ | Acceptance | 01/06/1949 | |
| IRELAND, REPUBLIC OF | Acceptance | 19/07/1961 | |
| ITALY | Acceptance | 13/11/1952 | |
| IVORY COAST | Accession | 08/12/1961 | |
| JAMAICA | Accession | 30/07/1964 | |
| LUXEMBOURG | Acceptance | 14/03/1955 | |
| MADAGASCAR | Accession | 09/10/1963 | |
| MALI | Succession | 02/02/1973 | |
| MALTA | Accession | 24/03/1967 | |
| MAURITIUS | Accession | 18/12/1969 | |
| MOROCCO | Accession | 07/11/1956 | |
| NETHERLANDS THE | Signature | 02/06/1949 | |
| NETHERLANDS THE | Acceptance | 26/01/1950 | |
| NIGER | Accession | 25/08/1961 | |
| NIGERIA | Accession | 18/05/1961 | |
| NORWAY | Acceptance | 04/05/1949 | |
| PAKISTAN | Signature | 13/05/1949 | |
| PAKISTAN | Acceptance | 16/06/1952 | |
| SENEGAL | Accession | 02/05/1963 | |
| SIERRA LEONE | Accession | 13/03/1962 | |
| SINGAPORE | Accession | 07/06/1966 | |
| SLOVAK REPUBLIC | Succession | 28/05/1993 | 01/01/1993 |
| SOUTH AFRICA | Signature | 22/08/1950 | 14/08/1951 |
| SWEDEN | Acceptance | 25/02/1952 | |
| SWITZERLAND | Acceptance | 23/09/1949 | |
| TANGANYIKA | Acceptance | 18/03/1963 | |
| TURKEY | Signature | 04/05/1949 | |
| TURKEY | Acceptance | 13/09/1950 | |
| UNITED ARAB EMIRATES | Acceptance | 16/09/1949 | |
| UNITED KINGDOM | Statement | 01/01/1905 | |
| UNITED KINGDOM | Signature | 04/05/1949 | |
| UNITED KINGDOM | Ratification | 04/05/1949 | |
| UNITED KINGDOM | Statement | 08/07/1975 | |
| UNITED KINGDOM | Notification | 10/06/1997 | 07/07/1997 |
| UNITED STATES OF AMERICA | Statement | 01/01/1905 | |
| UNITED STATES OF AMERICA | Signature | 04/05/1949 | |
| UNITED STATES OF AMERICA | Acceptance | 14/08/1950 | |
| UNITED STATES OF AMERICA | Statement | 08/07/1975 | |
| YUGOSLAVIA | Signature | 04/05/1949 | |
| YUGOSLAVIA | Acceptance | 26/04/1951 | |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Succession | 12/03/2001 | 27/04/1992 |
| ZAMBIA | Succession | 26/03/1973 | |