The African Convention on the conservation of nature and natural resources was adopted in 1968 in Algiers. Considered the most forward looking regional agreement of the time, it influenced significantly the development of environmental law in Africa. Two and a half decades of intense developments in international environmental law made it necessary to revise this treaty, update its provisions and enlarge its scope. This was undertaken under the auspices of the African Union (previously OAU), and the revision was adopted by its Heads of State and Government in July 2003 in Maputo. The introduction provides an overview of this new international treaty, as well as a commentary to each of its provisions.