| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| British Guiana | Extension | 08/10/1948 | |
| British Honduras | Extension | 07/09/1948 | |
| JAMAICA | Extension | 16/11/1948 | |
| Southern Rhodesia | Extension | 05/11/1954 | |
| Southern Rhodesia | Extension | 10/05/1949 | |
| UNITED KINGDOM | Extension | 06/07/1948 | |
| UNITED KINGDOM | Extension | 06/07/1948 | 06/07/1948 |
| UNITED KINGDOM | Extension | 20/07/1948 | |
| UNITED KINGDOM | Extension | 26/10/1949 | |
| UNITED STATES OF AMERICA |