| Contracting Parties/Signatories | Signature | Instrument | In Force | Details |
|---|---|---|---|---|
| Botswana | May 6, 1985 | |||
| Cabo Verde | October 14, 2022 | |||
| Eswatini | March 17, 1988 | |||
| Gambia | January 16, 1986 | |||
| Ghana | April 25, 1984 | |||
| Kenya | October 24, 1984 | |||
| Lesotho | October 23, 1987 | |||
| Liberia | March 24, 2010 | |||
| Malawi | April 25, 1984 | |||
| Mozambique | May 8, 2000 | |||
| Namibia | April 23, 2004 | |||
| Rwanda | September 24, 2011 | |||
| Sao Tome and Principe | August 19, 2014 | |||
| Seychelles | January 1, 2022 | |||
| Sierra Leone | February 25, 1999 | |||
| Sudan | April 25, 1984 | |||
| Uganda | April 25, 1984 | |||
| United Republic of Tanzania | September 1, 1999 | |||
| Zambia | February 26, 1986 | |||
| Zimbabwe | April 25, 1984 |