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Illinois (Part 63) MACT Standards Delegations

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Air Standards Delegations in Illinois

Clean Air Act Section 112 Major and Area Source Standards

EPA's final delegation approval of Section 112 NESHAP standards for Illinois constitutes a program of straight delegation of all existing and future air toxic standards regardless of a source's Part 70 (Title V) applicability. Straight Delegation will operate as follows: upon promulgation of a Section 112 standard (includes major and area sources), the State of Illinois automatically receives the authority and assumes the responsibility for the timely implementation and enforcement required by the standard, as well as any further activities agreed to by IEPA and EPA. Visit Illinois NSPS and NESHAP delegation for additional documents

Federal Register Documents for Approval of Section 112 (l) Program of Delegation

  • Proposed Rule: Approval of Section 112(l) Program of Delegation; Illinois (60 FR 57846) - Nov. 22, 1995
  • Direct Final Rule: Approval of Section 112(l) Program of Delegation; Illinois (60 FR 57834) - Nov. 22, 1995

Delegation Request and Other Historical Documentation

  • US. EPA completeness review of IEPA 112(l) delegation request (pdf) (565.97 KB, Sept. 8, 1995)
  • Illinois EPA 112(l) supplemental delegation request (pdf) (1.24 MB, Aug. 17, 1995)
  • Illinois EPA 112(l) delegation request (pdf) (1.01 MB, March 21, 1995)

EPA in Illinois

  • Hot Topics in Illinois
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  • Air Standards Delegations in Illinois
    • Illinois (Part 60) Emission Guidelines and (Part 62) State/Federal Plans (Section 111d/129) Delegations
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  • S.H. Bell Chicago Facility
    • S.H. Bell Chicago Air Monitoring Data
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  • Chicago Lead in Drinking Water Study
    • Advice to Chicago Residents About Lead in Drinking Water
Contact Us About EPA in Illinois
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Last updated on June 25, 2025
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