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Indiana Department of Environmental Management (IDEM) Office of Air Quality
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. The Indiana Department of Environmental Management's (IDEM) Office of Air Quality is responsible for administering and enforcing Indiana's air pollution rules. Indiana's air program is shaped by its state implementation plan (SIP), which details basic strategies for implementation, maintenance, and enforcement of the National Ambient Air Quality Standards (NAAQS). As mandated by the federal Clean Air Act (CAA), each state must adopt and submit a SIP to the U.S. Environmental Protection Agency (EPA) for approval.
• Administration and enforcement. Indiana's air program is implemented and enforced by IDEM's Office of Air Quality.
INDIANA'S AIR PROGRAM
Indiana's SIP was officially submitted to the EPA in January 1972 and is frequently amended to comply with the 1990 CAA amendments. The SIP focuses on permitting, nonattainment areas, hazardous air pollutants (HAPs), and numerous other air-related requirements.