The purpose of the Clean Water Act Indian Set-Aside (CWISA) Program is to provide funding for wastewater infrastructure to federally recognized tribal governments and Alaska Native Villages. Funds may be used for planning, design and construction
of wastewater collection and treatment systems. The CWISA Program is adminis- tered by the Environmental Protection Agency (EPA) in cooperation with the Indian Health Service (IHS). The program was established by the 1987 Amendments to the Clean Water Act, in Section 518(c).The CWISA program is administered in cooperation with the Indian Health Service (IHS). To be considered for CWISA program funding, tribes must identify their wastewater needs to the IHS Sanitation Deficiency System. EPA uses the IHS Sanitation Deficiency System priority lists to identify and select projects for CWISA program funding.
