| Country | Action | Action Date | Effective Date |
|---|
| Antilles | Extension | 01/01/1986 | 01/01/1986 |
| Aruba | Extension | 01/01/1986 | 01/01/1986 |
| AUSTRALIA | Signature | 13/08/1949 | |
| AUSTRALIA | Declaration | 04/08/1975 | 03/09/1975 |
| BELGIUM | Signature | 13/08/1949 | |
| BRAZIL | Signature | 13/08/1949 | |
| BURMA | Signature | 01/10/1951 | |
| CANADA | Signature | 13/08/1949 | |
| CEYLON | Signature | 18/05/1950 | |
| CHILE | Acceptance | 24/09/1952 | |
| CHINA | Signature | 30/11/1949 | |
| CHINA | Acceptance | 30/11/1949 | |
| CUBA | Signature | 29/09/1950 | |
| CZECHOSLOVAKIA | Signature | 08/12/1949 | |
| CZECHOSLOVAKIA | Acceptance | 08/12/1949 | |
| DENMARK | Signature | 28/04/1950 | |
| DOMINICAN REPUBLIC | Signature | 19/04/1950 | |
| FINLAND | Signature | 25/04/1950 | |
| FRANCE | Signature | 13/08/1949 | |
| GREECE | Signature | 07/02/1950 | |
| GREECE | Acceptance | 07/02/1950 | |
| HAITI | Signature | 10/10/1949 | |
| INDIA | Signature | 13/08/1949 | |
| INDIA | Acceptance | 11/04/1950 | |
| ITALY | Signature | 30/04/1950 | |
| LEBANON | Signature | 10/10/1949 | |
| LIBERIA | Signature | 28/11/1949 | |
| LIBERIA | Acceptance | 28/12/1949 | |
| LUXEMBOURG | Signature | 18/11/1949 | |
| NETHERLANDS THE | Signature | 10/10/1949 | |
| NETHERLANDS THE | Declaration | 01/01/1986 | |
| NEW ZEALAND | Signature | 30/11/1949 | |
| NICARAGUA | Signature | 28/04/1950 | |
| NORWAY | Signature | 13/08/1949 | |
| NORWAY | Acceptance | 25/11/1949 | |
| PAKISTAN | Signature | 21/12/1949 | |
| PAKISTAN | Acceptance | 21/12/1949 | |
| Papua New Guinea | Application | 04/08/1975 | 03/09/1975 |
| SOUTH AFRICA | Signature | 29/11/1949 | |
| SOUTH AFRICA | Acceptance | 29/11/1949 | |
| Southern Rhodesia | Signature | 13/08/1949 | |
| SWEDEN | Signature | 31/03/1950 | |
| SWEDEN | Acceptance | 31/03/1950 | |
| SYRIA | Signature | 19/06/1950 | |
| UNITED KINGDOM | Signature | 13/08/1949 | |
| UNITED STATES OF AMERICA | Signature | 10/10/1949 | |