| Country | Action | Action Date | Effective Date |
|---|
| Antilles | Extension | 01/01/1986 | |
| Aruba | Extension | 01/01/1986 | |
| AUSTRALIA | Definitive Signature | 08/12/1949 | |
| AUSTRIA | Definitive Signature | 04/08/1950 | |
| BELARUS | Succession | 08/09/1998 | 25/12/1991 |
| BELGIUM | Signature | 20/05/1949 | |
| BELGIUM | Acceptance | 13/10/1952 | |
| BRAZIL | Signature | 04/05/1949 | |
| CANADA | Definitive Signature | 04/05/1949 | |
| CEYLON | Definitive Signature | 14/07/1949 | |
| CHINA | Definitive Signature | 04/05/1949 | |
| CHINA | Notification | 08/04/1998 | |
| CHINA | Notification | 17/12/2003 | |
| COLOMBIA | Signature | 01/06/1949 | |
| CUBA | Signature | 04/05/1949 | |
| CUBA | Acceptance | 02/12/1983 | |
| CUBA | Declaration | 02/12/1983 | |
| CYPRUS | Succession | 16/05/1963 | |
| CZECH REPUBLIC | Succession | 30/12/1993 | |
| CZECHOSLOVAKIA | Signature | 09/05/1949 | |
| CZECHOSLOVAKIA | Acceptance | 21/06/1951 | |
| DENMARK | Signature | 21/11/1949 | |
| DENMARK | Acceptance | 01/03/1950 | |
| EGYPT | Signature | 09/05/1949 | |
| EGYPT | Acceptance | 16/09/1949 | |
| EL SALVADOR | Signature | 05/05/1949 | |
| FIJI | Succession | 01/11/1971 | |
| FINLAND | Acceptance | 31/10/1949 | |
| FRANCE | Definitive Signature | 05/05/1949 | |
| GERMAN DEMOCRATIC REPUBLIC | Letter | 18/12/1958 | |
| GERMAN DEMOCRATIC REPUBLIC | Acceptance | 02/12/1975 | |
| GERMAN DEMOCRATIC REPUBLIC | Declaration | 02/12/1975 | |
| GHANA | Succession | 07/04/1958 | |
| HONG KONG SAR | Declaration | 01/07/1997 | |
| HONG KONG SAR | Reservation | 01/07/1997 | |
| ICELAND | Acceptance | 25/10/1950 | |
| INDIA | Signature | 12/05/1949 | |
| INDIA | Acceptance | 28/12/1949 | |
| IRAN | Signature | 28/12/1949 | |
| IRAN | Acceptance | 30/12/1959 | |
| IRAQ | Signature | 01/06/1949 | |
| IRAQ | Acceptance | 14/09/1950 | |
| ITALY | Acceptance | 13/11/1952 | |
| LESOTHO | Succession | 28/11/1975 | |
| LIBERIA | Accession | 16/09/2005 | 16/03/2006 |
| LUXEMBOURG | Signature | 04/05/1949 | |
| LUXEMBOURG | Acceptance | 14/03/1955 | |
| MALAYA | Succession | 31/08/1957 | |
| MALTA | Succession | 21/09/1964 | |
| MAURITIUS | Succession | 12/03/1968 | |
| MEXICO | Acceptance | 22/07/1952 | |
| NETHERLANDS THE | Signature | 02/06/1949 | |
| NETHERLANDS THE | Acceptance | 26/09/1950 | |
| NEW ZEALAND | Definitive Signature | 14/10/1950 | |
| NIGERIA | Succession | 26/06/1961 | |
| NORWAY | Definitive Signature | 04/05/1949 | |
| PAKISTAN | Signature | 13/05/1949 | |
| PAKISTAN | Acceptance | 04/05/1951 | |
| ROMANIA | Definitive Signature | 02/11/1950 | |
| ROMANIA | Declaration | 02/11/1950 | |
| SENEGAL | Accession | 02/05/1963 | |
| SIERRA LEONE | Succession | 13/03/1962 | |
| SLOVAK REPUBLIC | Succession | 28/05/1993 | |
| SOLOMON ISLANDS | Succession | 03/09/1981 | |
| SOUTH AFRICA | Definitive Signature | 01/09/1950 | |
| SOVIET UNION | Definitive Signature | 14/05/1949 | |
| SOVIET UNION | Declaration | 14/05/1949 | |
| SWITZERLAND | Acceptance | 23/09/1949 | |
| TURKEY | Signature | 04/05/1949 | |
| TURKEY | Acceptance | 13/09/1950 | |
| UNITED KINGDOM | Signature | 04/05/1949 | |
| UNITED KINGDOM | Definitive Signature | 04/05/1949 | |
| UNITED KINGDOM | Notification | 10/06/1997 | |
| UNITED STATES OF AMERICA | Signature | 04/05/1949 | |
| UNITED STATES OF AMERICA | Acceptance | 14/08/1950 | |
| YUGOSLAVIA | Signature | 04/05/1949 | |
| YUGOSLAVIA | Acceptance | 29/04/1953 | |
| YUGOSLAVIA | Succession | 12/03/2001 | 27/04/1992 |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Succession | 12/03/2001 | 27/04/1992 |
| ZAMBIA | Succession | 01/11/1974 | |