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See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Wisconsin is fully authorized by the U.S. Environmental Protection Agency (EPA) to administer the federal National Pollutant Discharge Elimination System (NPDES) permit program. NPDES permits regulate point source discharges of pollutants to waters of the state. The state defines "point source" to include concentrated animal feeding operations (CAFOs). Wisconsin generally follows the federal rules relating to animal feeding operation (AFO) and CAFO permits. See the ...