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  2. Regulations for Emissions from Vehicles and Engines

Petitions and EPA Response Memorandums related to Lead Emissions from Aircraft that Operate on Leaded Fuel

Related Information
  • Regulations for lead emissions from aircraft
  • EPA’s Data and Analysis of Piston-engine Aircraft Emissions of Lead at U.S. Airports
  • Lead air pollution
  • Advance notice of proposed rulemaking and related materials on lead emissions from piston-engine aircraft using leaded aviation gasoline

EPA has actively engaged in the investigation of emissions of lead from aircraft operating on leaded fuel and the impact of these emissions on lead air pollution. We have completed this investigation and on [insert publication date], we issued a final determination that lead emissions to air from certain aircraft engines cause or contribute to air pollution which may reasonably be anticipated to endanger public health and welfare. Aircraft that use leaded aviation gasoline are primarily piston-engine aircraft.

  • Final Finding that Lead Emissions from Aircraft Engines That Operate on Leaded Fuel Cause or Contribute to Air Pollution that May Reasonably Be Anticipated to Endanger Public Health and Welfare (pdf) (693 KB, published October 20, 2023)
  • Final Finding Fact Sheet:
  • Proposed Finding that Lead Emissions from Aircraft Engines That Operate on Leaded Fuel Cause or Contribute to Air Pollution that May Reasonably Be Anticipated to Endanger Public Health and Welfare (pdf) (published October 17, 2022)
  • Fact Sheet: EPA Proposes Endangerment Finding for Lead Emissions from Aircraft that Operate on Leaded Fuel (pdf) (462 K, October 2022, EPA-420-F-22-022)

Below you can find EPA’s response to petitions.

  • EPA Response Memorandum to the 2021 Petition from Alaska Community Action on Toxics, Center for Environmental Health, Friends of the Earth, Montgomery-Gibbs Environmental Coalition, Oregon Aviation Watch, the county of Santa Clara, the Town of Middleton (pdf) (2.05 MB, January 12, 2022)
  • Petition from Alaska Community Action on Toxics, Center for Environmental Health, Friends of the Earth, Montgomery-Gibbs Environmental Coalition, Oregon Aviation Watch, the County of Santa Clara, and the Town of Middleton (pdf) (1.01 MB, October 2021)
  • EPA Response Memorandum to the 2014 Petition from Friends of the Earth, Physicians for Social Responsibility, and Oregon Aviation Watch Regarding Lead Emissions from Piston-Engine Aircraft (pdf) (643.02 KB, January 2015)
  • Petition from Friends of the Earth, Physicians for Social Responsibility, and Oregon Aviation Watch (pdf) (269.58 KB, April 2014)
  • EPA Response Memorandum to the 2006 Petition from Friends of the Earth Regarding Lead Emissions from Piston-Engine Aircraft (pdf) (9.96 MB, July 2012)
  • Petition from Friends of the Earth (pdf) (303.67 KB, October 2006)

Regulations for Emissions from Vehicles and Engines

  • Onroad
    • Passenger Vehicles
    • Commercial Trucks & Buses
    • Motorcycles
  • Nonroad
    • Aircraft
    • Heavy Equipment
    • Locomotives
    • Marine
    • Recreational Vehicles
    • Small Equipment & Tools
  • Greenhouse Gas
Contact Us About Regulations for Emissions from Vehicles and Engines
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on October 3, 2024
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