| Country | Action | Action Date | Effective Date |
|---|
| AFGHANISTAN | Signature | 12/11/1947 | |
| ALBANIA | Acceptance | 25/07/1949 | |
| ARGENTINA | Signature | 12/11/1947 | |
| AUSTRALIA | Signature | 13/12/1947 | |
| AUSTRIA | Signature | 04/08/1950 | |
| BELARUS | Succession | 08/09/1998 | 25/12/1991 |
| BELGIUM | Signature | 12/11/1947 | |
| BOLIVIA | Acceptance | 13/05/1952 | |
| BRAZIL | Signature | 17/03/1948 | |
| BRAZIL | Acceptance | 03/04/1950 | |
| BURMA | Signature | 13/05/1949 | |
| BURMA | Acceptance | 13/05/1949 | |
| CAMBODIA | Accession | 30/03/1959 | |
| CANADA | Signature | 24/11/1947 | |
| CEYLON | Accession | 15/04/1958 | |
| CHINA | Signature | 12/11/1947 | |
| COLOMBIA | Acceptance | 04/05/1949 | |
| CONGO, DEMOCRATIC REPUBLIC OF | Acceptance | 31/05/1962 | |
| CUBA | Acceptance | 02/12/1983 | |
| CUBA | Declaration | 02/12/1983 | |
| CUBA | Reservation | 02/12/1983 | |
| CYPRUS | Accession | 16/05/1963 | |
| CZECH REPUBLIC | Accession | 01/01/1993 | 30/12/1993 |
| DENMARK | Signature | 12/11/1947 | |
| DENMARK | Acceptance | 21/11/1949 | |
| DENMARK | Withdrawal | 16/08/1967 | |
| EGYPT | Signature | 12/11/1947 | |
| FIJI | Acceptance | 01/11/1971 | |
| FINLAND | Acceptance | 06/01/1949 | |
| GERMAN DEMOCRATIC REPUBLIC | Acceptance | 02/12/1975 | |
| GHANA | Accession | 07/04/1958 | |
| GREECE | Signature | 09/03/1951 | |
| GREECE | Acceptance | 05/04/1960 | |
| GUATEMALA | Signature | 09/07/1948 | |
| GUATEMALA | Acceptance | 26/08/1949 | |
| HAITI | Signature | 12/11/1947 | |
| HONG KONG SAR | Declaration | 10/06/1997 | 01/07/1997 |
| HUNGARY | Signature | 02/02/1950 | |
| INDIA | Signature | 12/11/1947 | |
| IRELAND, REPUBLIC OF | Acceptance | 28/02/1952 | |
| ITALY | Signature | 16/06/1949 | |
| JAMAICA | Accession | 30/07/1964 | |
| JORDAN | Accession | 11/05/1959 | |
| LESOTHO | Succession | 28/11/1975 | |
| LIBERIA | Accession | 16/09/2005 | 16/09/2005 |
| LUXEMBOURG | Signature | 12/11/1947 | |
| LUXEMBOURG | Acceptance | 14/03/1955 | |
| MADAGASCAR | Acceptance | 10/04/1963 | |
| MALAGASY REPUBLIC | Accession | 10/04/1963 | |
| MALAYA | Acceptance | 31/08/1957 | |
| MALTA | Accession | 21/09/1964 | |
| MAURITIUS | Accession | 12/03/1968 | |
| MEXICO | Signature | 04/02/1948 | |
| NETHERLANDS THE | Signature | 12/11/1947 | |
| NETHERLANDS THE | Acceptance | 07/03/1949 | |
| NETHERLANDS THE | Denunciation | 30/07/1985 | |
| NEW ZEALAND | Signature | 28/10/1948 | |
| NIGERIA | Acceptance | 26/06/1961 | |
| NORWAY | Signature | 12/11/1947 | |
| NORWAY | Acceptance | 28/11/1947 | |
| PAKISTAN | Signature | 12/11/1947 | |
| PANAMA | Signature | 20/11/1947 | |
| PERSIA | Signature | 16/07/1953 | |
| POLAND | Signature | 21/12/1950 | |
| ROMANIA | Signature | 02/11/1950 | |
| SIERRA LEONE | Signature | 13/03/1962 | |
| SLOVAK REPUBLIC | Accession | 01/01/1993 | 28/05/1993 |
| SOLOMON ISLANDS | Acceptance | 03/09/1981 | |
| SOUTH AFRICA | Signature | 12/11/1947 | |
| SOVIET UNION | Signature | 18/12/1947 | |
| TANZANIA | Acceptance | 28/11/1962 | |
| TRINIDAD AND TOBAGO | Acceptance | 11/04/1966 | |
| TURKEY | Signature | 12/11/1947 | |
| UNITED KINGDOM | Signature | 16/05/1949 | |
| UNITED KINGDOM | Acceptance | 16/05/1949 | |
| UNITED KINGDOM | Notification | 10/06/1997 | 01/07/1997 |
| YUGOSLAVIA | Signature | 12/11/1947 | |
| YUGOSLAVIA | Succession | 12/03/2001 | |
| YUGOSLAVIA | Succession | 12/03/2001 | 27/04/1992 |
| YUGOSLAVIA, FEDERAL REPUBLIC OF | Succession | 12/03/2001 | 27/04/1992 |
| ZAMBIA | Succession | 01/11/1974 | |