7 February 1997 | Publisher: National Legislative Bodies / National Authorities | Document type: National Decrees, Circulars, Regulation, Policy Documents
1997 | Publisher: National Legislative Bodies / National Authorities | Document type: National Decrees, Circulars, Regulation, Policy Documents
13 December 1996 | Publisher: National Legislative Bodies / National Authorities | Document type: National Legislation
24 July 1993 | Publisher: Economic Community of West African States (ECOWAS) | Document type: Multilateral Treaties/Agreements
11 June 1991 | Publisher: National Legislative Bodies / National Authorities | Document type: National Legislation
29 May 1990 | Publisher: Economic Community of West African States (ECOWAS) | Document type: Multilateral Treaties/Agreements
November 1989 | Publisher: National Legislative Bodies / National Authorities | Document type: National Legislation
30 June 1989 | Publisher: Economic Community of West African States (ECOWAS) | Document type: Multilateral Treaties/Agreements