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  2. EPA in Wisconsin
  3. Air Standards Delegations in Wisconsin

Wisconsin (Part 60) Emission Guidelines and (Part 62) State/Federal Plans (Section 111d/129) Delegations

Related Information

Air Standards Delegations in Wisconsin

Clean Air Act (CAA) section 111(d), originally enacted in 1970, was intended to cover pollutants that are not regulated under either the criteria pollutant/NAAQS provisions or section 112 of the CAA.  It was designed to regulate pollutants from existing sources and new sources that fall in the gap not covered by the criteria pollutant provisions or the hazardous air pollutant provisions. In 1990, Congress added Section 129 to the CAA specifically to address emissions from solid waste combustion.

Sections 111 and 129 require EPA to establish new source performance standards (NSPS) for new units and require the Agency to establish Emission Guidelines for existing units. Both the NSPS and the Emission Guidelines under section 111(d)/129 use a Maximum Achievable Control Technology (MACT) type approach as used under Section 112.

  • New source performance standards (NSPS) are direct federal regulations that apply to new sources.
  • Emission guidelines do not directly regulate solid waste combustion units; they establish requirements for state plans, which are the vehicle by which states implement the guidelines.
  • Once approved, these state plans become federally enforceable.
  • If a state does not seek approval of a state plan, the federal plan applies.

Note: Wisconsin and US EPA signed a Memorandum Of Agreement on Feb. 11, 2002 which does not constitute a "delegation of authority". The purpose of the MOA is to clarify responsibilities for implementing the 111(d)/129 Federal Plans in Wisconsin through the State's Title V program.

Large Municipal Waste Combustors (Large MWC)

  • Large Municipal Waste Combustors (LMWC): New Source Performance Standards (NSPS) and Emissions Guidelines (EG)
  • Federal Plan: LMWC Federal Plan  40 CFR Part 62 Subpart FFF

Federal Plan Applies

  • Wisconsin LMWC Withdrawal of Negative Declaration Final Rule (86 FR 24730) May 10, 2021
  • Wisconsin LMWC Withdrawal of Negative Declaration Proposed Rule (86 FR 11916) March 1, 2021
  • Wisconsin LMWC Negative Declaration (as part of Final Federal Plan) (65 FR 33461) May 24, 2000

Hospital/Medical/Infectious Waste Incinerators (HMIWI)

  • Hospital, Medical and Infectious Waste Incinerators (HMIWI): New Source Performance Standards (NSPS) and Emission Guidelines (EG)
  • Federal Plan: HMIWI Federal Plan 40 CFR Part 62 Subpart HHH

Negative Declaration but Federal Plan would apply if a source is found.

  • Michigan and Wisconsin Negative Declaration - Direct Final Rule (78 FR 72581) Dec. 3, 2013
  • Michigan and Wisconsin Negative Declaration Proposal (78 FR 72611) Dec. 3, 2013

Small Municipal Waste Combustors (Small MWC)

  • Small Municipal Waste Combustors (SMWC): New Source Performance Standards (NSPS) and Emission Guidelines (EG)
  • Federal Plan: SMWC Federal Plan 40 CFR Part 62 Subpart JJJ

Federal Plan Applies

Commercial, Industrial Solid Waste Incinerators (CISWI)

  • Commercial and Industrial Solid Waste Incineration Units (CISWI): New Source Performance Standards (NSPS) and Emission Guidelines (EG)
  • Federal Plan: CISWI Federal Plan 40 CFR Part 62 Subpart III

Federal Plan Applies

Other Solid Waste Incineration (OSWI)

  • Other Solid Waste Incinerators (OSWI): New Source Performance Standards (NSPS) and Emission Guidelines (EG)

Sewage Sludge Incinerators (SSI)

  • Sewage Sludge Incineration Units (SSI): New Source Performance Standards (NSPS) and Emission Guidelines (EG)
  • Federal Plan - SSI Federal Plan 40 CFR Part 62 Subpart LLL

Federal Plan Applies

Municipal Solid Waste (MSW) Landfills

  • Municipal Solid Waste Landfills: New Source Performance Standards (NSPS) and Emission Guidelines (EG)
  • Federal Plan – MSW Landfill Federal Plan 40 CFR Part 62 Subpart GGG

Federal Plan Applies

EPA in Wisconsin

  • Hot Topics in Wisconsin
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  • Kewaunee County Groundwater
  • Air Standards Delegations in Wisconsin
    • Wisconsin (Part 60) Emission Guidelines and (Part 62) State/Federal Plans (Section 111d/129) Delegations
    • Wisconsin (Part 60) NSPS and (Part 61) NESHAP Delegations
    • Wisconsin (Part 63) MACT Standards Delegations
  • Battery and Electronics Recycling Inc.
  • EPA Investigating Milwaukee Company for Potential Environmental Violations
    • Container Life Cycle Management Desk Statement
    • Documents
  • NPDES Petition for Program Withdrawal in Wisconsin
Contact Us about EPA in Wisconsin
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Last updated on May 13, 2025
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