Governing Law and Regulations
Indiana Department of Environmental Management (IDEM) Office of Land Quality
U.S. Environmental Protection Agency (EPA) Region 5
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Indiana is authorized to administer the state permits, general permits, and federal permits under the National Pollutant Discharge Elimination System (NPDES) permit program in Indiana. Indiana's NPDES permit rules include permits for concentrated animal feeding operations (CAFOs) that are more stringent than federal rules. The Indiana Department of Environmental Management's (IDEM) criteria for CAFO regulations include requirements for both large- and medium-sized CAFOs. See the national section AG WASTE for additional guidance on these definitions and requirements.
In addition to the national program, the IDEM regulates operations that fall below the medium CAFO definition under the Indiana ...