| Country | Action | Action Date | Effective Date |
|---|
| AFGHANISTAN | Signature | 12/11/1947 | |
| ALBANIA | Acceptance | 25/07/1949 | |
| ARGENTINA | Signature | 12/11/1947 | |
| AUSTRALIA | Signature | 13/11/1947 | |
| AUSTRIA | Signature | 07/06/1950 | |
| BELGIUM | Signature | 12/11/1947 | |
| BRAZIL | Signature | 12/11/1947 | 06/04/1950 |
| BURMA | Signature | 13/05/1949 | |
| CANADA | Signature | 24/11/1947 | |
| CHINA | Signature | 12/11/1947 | |
| CHINA | Withdrawal Comm. | 05/01/2000 | |
| CUBA | Acceptance | 16/03/1981 | |
| CUBA | Declaration | 16/03/1981 | |
| CZECH REPUBLIC | Succession | 30/12/1993 | 01/01/1993 |
| CZECHOSLOVAKIA | Objection | 01/01/1905 | |
| CZECHOSLOVAKIA | Signature | 12/11/1947 | |
| DENMARK | Signature | 12/11/1947 | |
| DENMARK | Acceptance | 21/11/1949 | |
| EGYPT | Signature | 12/11/1947 | |
| FINLAND | Acceptance | 06/01/1949 | |
| FRANCE | Statement | 01/01/1905 | |
| GERMAN DEMOCRATIC REPUBLIC | Accession | 16/07/1974 | |
| GERMAN DEMOCRATIC REPUBLIC | Declaration | 16/07/1974 | |
| GERMANY FEDERAL REPUBLIC | Statement | 01/01/1905 | |
| GERMANY FEDERAL REPUBLIC | Accession | 29/05/1973 | |
| GREECE | Signature | 09/03/1951 | 05/04/1960 |
| HUNGARY | Signature | 02/02/1950 | |
| INDIA | Signature | 12/11/1947 | |
| IRAN | Signature | 16/07/1953 | |
| IRELAND, REPUBLIC OF | Acceptance | 19/07/1961 | |
| ITALY | Signature | 05/01/1949 | |
| IVORY COAST | Signature | 05/11/1962 | |
| JAMAICA | Signature | 16/03/1965 | |
| LEBANON | Signature | 12/11/1947 | |
| LIBYA | Accession | 17/02/1959 | |
| LUXEMBOURG | Signature | 12/11/1947 | |
| LUXEMBOURG | Acceptance | 14/03/1955 | |
| MADAGASCAR | Acceptance | 18/02/1963 | |
| MALI | Accession | 02/02/1973 | 02/04/1973 |
| MALTA | Acceptance | 27/02/1975 | |
| MEXICO | Signature | 12/11/1947 | |
| MEXICO | Acceptance | 17/08/1949 | |
| NETHERLANDS THE | Signature | 12/11/1947 | |
| NETHERLANDS THE | Acceptance | 07/03/1949 | |
| NETHERLANDS THE | Extension | 01/01/1986 | 01/01/1986 |
| NICARAGUA | Signature | 12/11/1947 | |
| NICARAGUA | Acceptance | 24/04/1950 | |
| NIGER | Signature | 07/12/1964 | |
| NORWAY | Signature | 12/11/1947 | |
| NORWAY | Ratification | 28/11/1947 | |
| PAKISTAN | Signature | 12/11/1947 | |
| PANAMA | Signature | 20/11/1947 | |
| PHILIPPINES | Accession | 30/09/1954 | |
| POLAND | Acceptance | 21/12/1950 | |
| ROMANIA | Signature | 02/11/1950 | |
| SIERRA LEONE | Accession | 13/08/1962 | |
| SINGAPORE | Signature | 26/10/1966 | |
| SLOVAK REPUBLIC | Succession | 28/05/1993 | 01/01/1993 |
| SOUTH AFRICA | Signature | 12/11/1947 | |
| SOVIET UNION | Objection | 01/01/1905 | |
| SOVIET UNION | Signature | 18/12/1947 | |
| SWEDEN | Signature | 09/06/1948 | |
| SYRIA | Signature | 17/11/1947 | |
| TURKEY | Accession | 12/11/1947 | |
| UNITED KINGDOM | Statement | 01/01/1974 | |
| UNITED STATES OF AMERICA | Statement | 01/01/1905 | |
| YUGOSLAVIA | Signature | 12/11/1947 | |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Succession | 12/03/2001 | 27/04/2001 |