| Contracting Parties/Signatories | Signature | Instrument | In Force | Details |
|---|
| Benin | | Ratification: December 14, 1995 | December 14, 1995 | |
| Burkina Faso | | Ratification: June 24, 1994 | August 23, 1995 | |
| Cape Verde | | Ratification: July 15, 1996 | July 15, 1996 | |
| Côte d'Ivoire | | Ratification: November 5, 1996 | November 5, 1996 | |
| Gambia | | Ratification: August 26, 1997 | August 26, 1997 | |
| Ghana | | Ratification: June 29, 1995 | August 23, 1995 | |
| Guinea | | Ratification: July 18, 1994 | August 23, 1995 | |
| Guinea-Bissau | | | | |
| Liberia | | Ratification: December 29, 1993 | August 23, 1995 | |
| Mali | | Ratification: July 14, 1994 | August 23, 1995 | |
| Niger | | Ratification: August 23, 1995 | August 23, 1995 | |
| Nigeria | | Ratification: July 1, 1994 | August 23, 1995 | |
| Senegal | | Ratification: May 10, 1994 | August 23, 1995 | |
| Sierra Leone | | Ratification: June 14, 1994 | August 23, 1995 | |
| Togo | | | October 27, 1995 | |
