| Country | Action | Action Date | Effective Date |
|---|
| AFGHANISTAN | Accession | 19/04/1948 | |
| ALBANIA | Definitive Signature | 22/07/1946 | |
| Antilles | Extension | | 01/01/1986 |
| ARGENTINA | Signature | 22/07/1946 | |
| ARGENTINA | Acceptance | 22/10/1948 | |
| Aruba | Extension | | 01/01/1986 |
| AUSTRALIA | Signature | 22/07/1946 | |
| AUSTRALIA | Acceptance | 08/05/1947 | |
| AUSTRIA | Definitive Signature | 22/07/1946 | |
| BELGIUM | Signature | 22/07/1946 | |
| BELGIUM | Acceptance | 25/06/1948 | |
| BOLIVIA | Definitive Signature | 22/07/1946 | |
| BRAZIL | Signature | 22/07/1946 | |
| BRAZIL | Acceptance | 02/06/1948 | |
| BULGARIA | Definitive Signature | 22/07/1946 | |
| BURMA | Accession | 01/07/1948 | |
| BYELORUSSIA S S R | Definitive Signature | 22/07/1946 | |
| CANADA | Signature | 22/07/1946 | |
| CANADA | Acceptance | 29/08/1946 | |
| CEYLON | Accession | 23/05/1949 | |
| CHILE | Signature | 22/07/1946 | |
| CHINA | Definitive Signature | 22/07/1946 | |
| COLOMBIA | Definitive Signature | 22/07/1946 | |
| COSTA RICA | Definitive Signature | 22/07/1946 | |
| CUBA | Acceptance | 09/05/1950 | |
| CZECHOSLOVAKIA | Signature | 22/07/1946 | |
| CZECHOSLOVAKIA | Acceptance | 01/03/1948 | |
| DENMARK | Signature | 22/07/1946 | |
| DENMARK | Acceptance | 21/04/1947 | |
| DOMINICAN REPUBLIC | Signature | 22/07/1946 | |
| ECUADOR | Signature | 22/07/1946 | |
| EGYPT | Signature | 22/07/1946 | |
| EGYPT | Acceptance | 16/12/1947 | |
| ETHIOPIA | Signature | 22/07/1946 | |
| ETHIOPIA | Acceptance | 11/04/1947 | |
| FINLAND | Definitive Signature | 22/07/1946 | |
| FRANCE | Signature | 22/07/1946 | |
| GREECE | Signature | 22/07/1946 | |
| GREECE | Acceptance | 12/03/1948 | |
| GUATEMALA | Signature | 22/07/1946 | |
| GUATEMALA | Acceptance | 26/08/1949 | |
| HAITI | Signature | 22/07/1946 | |
| HAITI | Acceptance | 12/08/1947 | |
| HONDURAS | Signature | 22/07/1946 | |
| HONDURAS | Acceptance | 08/04/1949 | |
| HUNGARY | Accession | 17/06/1948 | |
| INDIA | Signature | 22/07/1946 | |
| INDIA | Acceptance | 12/01/1948 | |
| IRAN | Signature | 22/07/1946 | |
| IRAN | Acceptance | 27/01/1947 | |
| IRAQ | Signature | 22/07/1946 | |
| IRAQ | Acceptance | 23/09/1947 | |
| IRELAND, REPUBLIC OF | Signature | 22/07/1946 | |
| IRELAND, REPUBLIC OF | Acceptance | 20/10/1947 | |
| ITALY | Signature | 22/07/1946 | |
| ITALY | Acceptance | 11/04/1947 | |
| JAPAN | Accession | 11/12/1951 | |
| LEBANON | Signature | 22/07/1946 | |
| LIBERIA | Signature | 22/07/1946 | |
| LUXEMBOURG | Signature | 22/07/1946 | |
| LUXEMBOURG | Acceptance | 03/06/1949 | |
| MEXICO | Signature | 22/07/1946 | |
| MEXICO | Acceptance | 07/04/1948 | |
| NETHERLANDS THE | Signature | 22/07/1946 | |
| NETHERLANDS THE | Acceptance | 25/04/1947 | |
| NEW ZEALAND | Signature | 22/07/1946 | |
| NEW ZEALAND | Acceptance | 10/12/1946 | |
| NICARAGUA | Signature | 22/07/1946 | |
| NORWAY | Signature | 22/07/1946 | |
| NORWAY | Acceptance | 18/08/1947 | |
| PAKISTAN | Accession | 23/06/1948 | |
| PANAMA | Signature | 22/07/1946 | |
| PANAMA | Acceptance | 20/02/1951 | |
| PARAGUAY | Signature | 22/07/1946 | |
| PERU | Signature | 22/07/1946 | |
| PHILIPPINES | Definitive Signature | 22/07/1946 | |
| POLAND | Definitive Signature | 22/07/1946 | |
| PORTUGAL | Signature | 22/07/1946 | |
| PORTUGAL | Acceptance | 11/08/1948 | |
| SAUDI ARABIA | Definitive Signature | 22/07/1946 | |
| SIAM | Definitive Signature | 22/07/1946 | |
| SOUTH AFRICA | Signature | 22/07/1946 | |
| SOUTH AFRICA | Acceptance | 19/03/1948 | |
| SOVIET UNION | Definitive Signature | 22/07/1946 | |
| SWEDEN | Accession | 28/03/1947 | |
| SWITZERLAND | Signature | 22/07/1946 | |
| SWITZERLAND | Acceptance | 26/03/1947 | |
| SYRIA | Acceptance | 11/08/1948 | |
| TRANSJORDAN | Definitive Signature | 22/07/1946 | |
| TURKEY | Definitive Signature | 22/07/1946 | |
| UKRAINE S S R | Definitive Signature | 22/07/1946 | |
| UNITED KINGDOM | Signature | 22/07/1946 | |
| UNITED KINGDOM | Ratification | 22/07/1946 | |
| UNITED KINGDOM | Definitive Signature | 22/07/1946 | |
| UNITED STATES OF AMERICA | Signature | 22/07/1946 | |
| UNITED STATES OF AMERICA | Acceptance | 07/08/1947 | |
| URUGUAY | Signature | 22/07/1946 | |
| VENEZUELA | Signature | 22/07/1946 | |
| VENEZUELA | Acceptance | 07/03/1949 | |
| YUGOSLAVIA | Signature | 22/07/1946 | |
| YUGOSLAVIA | Acceptance | 19/11/1947 | |