| Contracting Parties/Signatories | Signature | Instrument | In Force | Details |
|---|---|---|---|---|
| Benin | March 19, 1983 | Details | ||
| Burkina Faso | June 1, 1983 | Details | ||
| Cameroon | February 8, 1982 | Details | ||
| Central African Republic | February 8, 1982 | Details | ||
| Chad | November 5, 1988 | Details | ||
| Comoros | Accession : March 25, 2013 | May 25, 2013 | Details | |
| Congo | February 8, 1982 | Details | ||
| Côte d'Ivoire | February 8, 1982 | Details | ||
| Equatorial Guinea | November 23, 2000 | Details | ||
| Gabon | February 8, 1982 | Details | ||
| Guinea | January 18, 1990 | Details | ||
| Guinea-Bissau | July 8, 1998 | Details | ||
| Mali | September 30, 1984 | Details | ||
| Mauritania | February 8, 1982 | Details | ||
| Niger | February 8, 1982 | Details | ||
| Senegal | February 8, 1982 | Details | ||
| Togo | February 8, 1982 | Details |