| Country | Action | Action Date | Effective Date |
|---|
| BELGIUM | Signature | 22/02/1949 | |
| BELGIUM | Ratification | 09/01/1950 | |
| BELGIUM | Withdrawal | 20/11/1964 | 21/11/1965 |
| BOTSWANA | Succession | 02/07/1968 | |
| BURUNDI | Accession | 23/10/1962 | |
| KENYA | Withdrawal | | 16/05/1968 |
| MALAWI | Accession | 05/08/1965 | |
| SOUTH AFRICA | Signature | 22/02/1949 | |
| SOUTH AFRICA | Ratification | 05/08/1949 | |
| Southern Rhodesia | Signature | 22/02/1949 | |
| Southern Rhodesia | Ratification | 30/06/1949 | |
| TANGANYIKA | Denunciation | | 17/03/1971 |
| TANGANYIKA | Accession | 15/10/1962 | |
| UGANDA | Accession | 02/06/1965 | |
| UNITED KINGDOM | Signature | 22/02/1949 | |
| UNITED KINGDOM | Ratification | 14/04/1949 | |
| ZAMBIA | Denunciation | | 23/02/1971 |