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

Related Information

Air Standards Delegations in Minnesota

Clean Air Act (CAA) section 111(d), originally enacted in 1970, was intended to cover pollutants that are not regulated under either the criteria pollutant/NAAQS provisions or section 112 of the CAA.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.

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

State Plan Approved

  • Minnesota LMWC State Plan (Final Rule) (63 FR 43080) Aug. 12, 1998
  • Minnesota LMWC State Plan (Proposed Rule) (63 FR 43127) Aug. 12, 1998

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

Federal Plan Applies

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

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

  • Minnesota CISWI and OSWI Negative Declaration (Final Rule)(84 FR 8001) March 6, 2019 
  • Minnesota CISWI and OSWI Negative Declaration (Proposed Rule)(83 FR 48777) September 27, 2018 

Other Solid Waste Incineration (OSWI)

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

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

  • Minnesota CISWI and OSWI Negative Declaration (Final Rule)(84 FR 8001) March 6, 2019 
  • Minnesota CISWI and OSWI Negative Declaration (Proposed Rule)(83 FR 48777) September 27, 2018 

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

State Plan Approved

  • Minnesota MSW Landfill State Plan (Final Rule) (63 FR 40049) July 27, 1998
  • Minnesota MSW Landfill State Plan (Proposed Rule) (63 FR 40074) July 27, 1998

EPA in Minnesota

  • Hot Topics in Minnesota
  • Environmental Information for Minnesota
  • Environmental Data Maps
  • Minnesota Events and Public Notices
  • Air Standards Delegations in Minnesota
    • Minnesota (Part 63) MACT Standards Delegations
    • Minnesota (Part 60) NSPS and (Part 61) NESHAP Delegations
  • PolyMet (now NewRange Copper Nickel, LLC)
    • Documents related to EPA’s PolyMet NorthMet 401(a)(2) Notification
    • Documents submitted by PolyMet Mining, Inc.
    • Documents submitted to EPA by the Fond du Lac Band
Contact Us about EPA in Minnesota
Contact Us about EPA in Minnesota to ask a question, provide feedback, or report a problem.
Last updated on June 25, 2025
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