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Regulations for Emissions from Vehicles and Engines
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Regulations for Lead Emissions from Aircraft

Related Topics
  • Regulations for emissions from nonroad vehicles & engines
  • Regulations for greenhouse gas emissions from aircraft
  • Regulations for nitrogen oxide emissions from aircraft
  • EPA’s Data and Analysis of Piston-engine Aircraft Emissions of Lead at U.S. Airports
  • Lead air pollution
  • Information on Contrails from Aircraft
On this page:
  • Overview
  • List of related regulations

Overview

Protecting children’s health and reducing lead exposure are two of EPA’s top priorities. EPA has been investigating the air quality impact of lead emissions from piston-engine aircraft operating on leaded fuel, including assessment of lead concentrations in air near airports and evaluation of the potentially exposed population.

EPA is now evaluating, under the Clean Air Act, whether emissions of lead from piston-engine aircraft cause or contribute to air pollution that endangers public health or welfare. For convenience, we refer to this action collectively as the “endangerment finding.”

EPA currently plans to issue a proposed endangerment finding in 2022 which will undergo public notice and comment. After evaluating comments on the proposal, we plan to issue any final endangerment finding in 2023.

The FAA, together with government and industry stakeholders, is in the early stages of developing a multi-layered transition strategy to reduce and ultimately eliminate lead from aviation gasoline. More information about FAA’s programs can be found here: https://www.faa.gov/about/initiatives/avgas/

Learn more:
  • EPA’s Data and Analysis of Piston-engine Aircraft Emissions of Lead at U.S. Airports
  • Petitions and EPA response memorandums related to lead emissions from aircraft


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List of Related Regulations

Below is a list of all regulations related to lead pollution from aircraft.

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For help on using the table:
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Click the regulation titles for additional information, including:
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*Note: Rule-related materials vary by rule.

Regulation Title Regulation Date
(Year/Month)
Advance Notice of Proposed Rulemaking and Related Materials on Lead Emissions From Piston-Engine Aircraft Using Leaded Aviation Gasoline 2010/04
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Last updated on January 12, 2022