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Clean Air Act Section 112 Presidential Exemption Information

To advance President Trump’s Executive Orders and Power the Great American Comeback, EPA set up an electronic mailbox to allow the regulated community to request a Presidential Exemption under section 112(i)(4) of the Clean Air Act. Submissions to request a Presidential Exemption were due by March 31, 2025.

The Clean Air Act allows the President to exempt stationary sources of air pollution from compliance with any standard or limitation under section 112 for up to two years if the technology to implement the standard is not available and it is in the national security interests of the United States to do so. Submitting a request  does not entitle the submitter to an exemption. The President will make a decision on the merits.

An exemption may be extended for up to two additional years and can be renewed, if appropriate. On March 12, 2025, EPA requested that facilities and/or affected sources subject to the regulations below submit information about why their facility and/or affected source meets the requirements under Clean Air Act Section 112(i)(4) for a Presidential exemption while EPA reconsiders these rules:

  • "National Emission Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units Review of the Residual Risk and Technology Review” (89 FR  38508; May 7, 2024) (MATS Rule) 
  • “New Source Performance Standards for the Synthetic Organic Chemical Manufacturing Industry and National Emission Standards for Hazardous Air Pollutants for the Synthetic Organic Chemical Manufacturing Industry and Group I & II Polymers and Resins” (89 FR 42932; May 16, 2024) (HON rule); 
  • “National Emission Standards for Hazardous Air Pollutants: Ethylene Oxide Emissions Standards for Sterilization Facilities Residual Risk and Technology Review” (89 FR 24090; April 5, 2024) (Sterilizer Rule); 
  • “National Emission Standards for Hazardous Air Pollutants: Rubber Tire Manufacturing” (89 FR 94886; November 29, 2024) (Rubber Tire Rule); 
  • “National Emission Standards for Hazardous Air Pollutants: Primary Copper Smelting Residual Risk and Technology Review and Primary Copper Smelting Area Source Technology Review” (89 FR 41648; May 13, 2024) (Copper Rule); 
  • “National Emission Standards for Hazardous Air Pollutants: Integrated Iron and Steel Manufacturing Facilities Technology Review” (89 FR 23294; April 3, 2024) (Iron and Steel Rule); 
  • “National Emission Standards for Hazardous Air Pollutants: Lime Manufacturing Plants Technology Review” (89 FR 57738; July 16, 2024) (Lime Rule); 
  • “National Emission Standards for Hazardous Air Pollutants for Coke Ovens: Pushing, Quenching, and Battery Stacks, and Coke Oven Batteries; Residual Risk and Technology Review, and Periodic Technology Review” (89 FR 55684; July 5, 2024) (Coke Ovens Rule); and  
  • “National Emission Standards for Hazardous Air Pollutants: Taconite Iron Ore Processing” (89 FR 16408; March 6, 2024) (Taconite Rule). 

Stationary Sources of Air Pollution

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Contact Us About Stationary Sources of Air Pollution
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Last updated on April 14, 2025
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