Skip to main content

Options for Reducing Lead Emissions from Piston-Engine Aircraft (2021) / Chapter Skim
Currently Skimming:

Appendix C: Statutory Provisions (42 U.S.C. 7571 7573 and 49 U.S.C. 44714)
Pages 149-152

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 149...
... judgment, causes or contributes to air pollution which may reasonably be anticipated to endanger public health or welfare" (emphasis added)
Read the entire page →
From page 150...
... EPA issued the first NAAQS for lead in 1978; the lead NAAQS level is now 0.15 μg/m3, measured over a 3-month averaging period.2 According to a 2010 advance notice of proposed rulemaking from EPA,3 EPA has broad authority in exercising its judgment regarding whether emissions from certain sources cause or contribute to air pollution, which may reasonably be anticipated to endanger public health or welfare. EPA has not yet made an "endangerment finding" with regard to lead emissions from piston-engine general aviation aircraft operations.
Read the entire page →
From page 151...
... allows EPA to regulate any fuel or fuel additive used in motor vehicles and nonroad vehicles or engines if, in the judgment of the Administrator, any fuel or fuel additive or any emission product of the fuel or fuel product either: (1) causes or contributes to air pollution or water pollution that reasonably may be anticipated to endanger public health or welfare, or (2)
Read the entire page →
From page 152...
... adopts a process other than the traditional type certification process to allow eligible aircraft and aircraft engines to operate using the qualified replacement unleaded gasoline in a manner that ensures safety. However, as stated in the statutory language, these new provisions are not intended to replace existing regulatory mechanisms by which an unleaded aviation gasoline can approved for use in an engine or aircraft.
Read the entire page →

Key Terms

  • lead emissions
  • aircraft engines
  • leaded aviation
  • fuel additive
  • air pollutant

  • emission standards
  • endanger public
  • endangerment finding
  • aircraft emissions
  • proposed rulemaking

  • advance notice
  • clean air
  • proposed rule
  • air act
  • proposed emission

  • unleaded aviation
  • sets forth
  • aircraft using
  • faa prescribe
  • aviation administration

  • unleaded gasoline
  • issue proposed
  • federal aviation
  • caa section
  • standards applicable

  • aircraft fuel
  • regulate aircraft
  • using leaded
  • protect public
  • requires epa


    • This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
    More information on Chapter Skim is available.