Governing Law and Regulations
Indiana Department of Environmental Management (IDEM) Office of Air Quality
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Indiana's air permit regulations require any source requiring a construction permit to obtain an operating permit. Major sources must apply for a Title V operating permit, which is designed to consolidate all emissions sources at a facility under a single facilitywide operating permit. Indiana's Title V operating permit program follows federal standards and received final full approval from the U.S. Environmental Protection Agency effective November 23, 2001. IDEM has also established a Title V permitting threshold for greenhouse gas emissions that is consistent with the federal requirements. See the national section TITLE V for more information.
• Administration and enforcement. IDEM's Office of Air Quality is responsible for the administration and enforcement of the state's air emissions permit ...