Best Practices in Transitioning to Lead-Free AvGas

The U.S. Environmental Protection Agency is publishing a draft Endangerment Finding that connects lead emissions from piston-engine aircraft engines with adverse impacts to health and welfare. FAA and the aviation industry have set a goal and made a commitment to safely eliminate the use of leaded aviation fuel by the end of 2030 without adversely affecting the safe and efficient operation of the existing piston-engine fleet. Achieving this goal will require airports to play a significant role, namely taking steps to accommodate and offer unleaded fuels while maintaining typical fuel offerings (e.g., 100LL and Jet A). Each airport is unique and will not be able to transition to unleaded fuels in the same manner. Research is therefore needed to better understand how airports can transition to unleaded aviation gasoline (avgas) in a safe and efficient manner that considers their unique situation. The objectives of this research are to provide an industry overview of the challenges and opportunities for airports as they transition their piston-engine fuel offerings from leaded to unleaded avgas and for developing guidelines and tools to help individual airports effect the transfer in a manner that is safe, efficient, and cost-effective and does not disrupt piston-engine activity. Note: This an expedited project. The deadline for panel nominations for this project is September 6, 2022.


  • English


  • Status: Proposed
  • Funding: $500000
  • Contract Numbers:

    Project 03-73

  • Sponsor Organizations:

    Airport Cooperative Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC    20001

    Federal Aviation Administration

    800 Independence Avenue, SW
    Washington, DC  United States  20591
  • Project Managers:

    Navarrete, Joseph

  • Start Date: 20220815
  • Expected Completion Date: 0
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01854686
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 03-73
  • Files: TRB, RIP
  • Created Date: Aug 15 2022 4:24PM