Brazil's São Francisco and Parnaíba valley development company Codevasf is a state-run firm responsible for the economic development of the São Francisco, Parnaíba, Itapecuru and Mearim river basins. Codevasf is tasked with using natural resources in a sustainable manner and pursuing productive activities to achieve social and economic inclusion. The company receives public funding to build infrastructure for irrigation projects and the rational use of water resources. It also develops recovery programs for areas affected by ecological degradation and conducts socio-economic and environmental surveys and studies. Codevasf was created in 1974 as the successor company of the São Francisco Valley regulator, Suvale, and is based in Brasilia.