Governing Law and Regulations
Illinois Environmental Protection Agency (IEPA) Bureau of Air Division of Air Pollution Control
See ADDRESSES & CONTACTS for addresses and telephone numbers.
See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. Illinois's air program is shaped by its state implementation plan (SIP). SIP is a plan detailing the methods by which the state will implement, maintain, and enforce the National Ambient Air Quality Standards (NAAQS). As mandated by the federal Clean Air Act (CAA), each state must adopt and submit SIP to the U.S. Environmental Protection Agency (EPA) for approval.
• Administration and enforcement. Illinois's air program is implemented and enforced by the Illinois Environmental Protection Agency's (IEPA) Division of Air Pollution Control.
ILLINOIS'S AIR PROGRAM
Illinois officially submitted its SIP to the EPA in January 1972. However, it is constantly being amended in order to comply with the 1990 CAA amendments. After the EPA issues final approval of each amendment to the state's SIP, the IEPA will be fully authorized to enforce that amended portion of ...