EAGLE

Industry

FAA

NASEM

EPA

Eliminate Aviation Gasoline Lead Emissions (EAGLE)

Interactive Toolkit

Piston Aviation Fuels Initiative (PAFI) Process & Metrics

Statistics (Includes Airports & Logistics Maps)

Transition to Unleaded Aviation Gasoline “Big Picture”

Featured Resources

Apr 2025	Report Unleaded Fuel Issues: FAA Special Airworthiness Information Bulletin (SAIB)
	NATA Misfueling Prevention Program
Jul 2023	Transitioning a Flight School to UL Avgas

Fact Sheets and Resources

Nov 2024	Fact Sheet – The Two FAA Pathways to Approve Use of Unleaded Aviation Fuel
Nov 2024	Fact Sheet – The Value of Industry Voluntary Consensus Standards
Oct 2023	White Paper on Endangerment Finding
Oct 2023	Q&A on Endangerment Finding

Stakeholder Meetings

Sep 2025	FAA Briefing – Association of California Airports
Jul 2025	AirVenture (video)
Jul 2025	AirVenture (presentation)
Jul 2025	AirVenture (audience member questions)
Feb 2025	FAAST Saturday Wings and Coffee (video)
Feb 2025	FAAST Saturday Wings and Coffee (presentation)
Jul 2024	AirVenture (video)
Jul 2024	AirVenture (presentation)
Jul 2024	AirVenture (EAGLE Statement Following Unleaded Fuels Update) )
Apr 2024	Virtual (video)
Apr 2024	Virtual (presentation)
Oct 2023	Virtual (video)
Mar 2023	Virtual
Nov 2022	Virtual
Jul 2022	AirVenture
Jun 2022	Virtual
Mar 2022	Virtual

EAGLE Member Resources

	Misfueling Prevention Program \| NATA
Aug 2024	AOPA Baron Fuel Cells \| AOPA
Apr 2024	Factors Affecting the Commercial Sale of Emerging Unleaded Aviation Fuels \| NATA
Sep 2021	Unleaded Avgas Conversion Considerations for Aviation Fuel Providers \| NATA

Federal Aviation Administration (FAA)

Piston Aviation Fuels Initiative (PAFI)

	LyondellBasell-VP Racing UL 100E PAFI Testing Status
May 2024	Materials Compatibility Test Plan PAFI Materials Compatibility Test Plan (PAFI-MTP-002) Materials Test Matrix
Jun 2023	FAA Pathways to Approve Use of New Unleaded Fuel
Mar 2023	Policy Statement: Enabling the Use of Unleaded Aviation Gasoline in Piston Engine Aircraft and Aircraft Engines through the Piston Aviation Fuels Initiative (PAFI) Fleet Authorization Process
Jun 2022	Test Plan Matrix
Aug 2022	Background and Program Update
Aug 2022	Fuel Development & Testing: Lessons Learned Best Practices Considerations

Unleaded AVGAS Transition Aviation Rulemaking Committee (UAT ARC)

Feb 2012	FAA UAT ARC Final Report Part I Body Unleaded AVGAS Findings & Recommendations
Feb 2012	FAA UAT ARC Final Report Part II Appendices Unleaded AVGAS Findings & Recommendation

Additional Resources

May 2025	Questions/Answers on Grant Assurance 40, Access to Leaded Aviation Gasoline
2024	FAA Reauthorization Act of 2024 (SEC. 770. Grant Assurances, SEC. 771. Aviation Fuel in Alaska, SEC. 827. EAGLE Initiative)
2022	FAA, Industry Chart Path to Eliminate Lead Emissions from General Aviation by the end of 2030
Oct 2022	Environment & Airports
Oct 2022	What can airports do in the short term to reduce lead emissions?
Sep 2018	Advisory Circular 20-62E: Eligibility, Quality, & Identification of Aeronautical Replacement Parts
Dec 2016	Advisory Circular 20-188: Compatibility of Changes to Type Design Installed on Aircraft
Aug 2013	Advisory Circular 20-180: Approved Model List Supplemental Type Certificate (AML-STC)
Jun 2013	Advisory Circular 20-179: Certification Data Retention Agreements and Government Records

National Academies of Science, Engineering, and Medicine (NASEM)

2021

Options for Reducing Lead Emissions from Piston-Engine Aircraft

Environmental Protection Agency (EPA)

Oct 2023	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
Oct 2022	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
Jan 2022	EPA to Evaluate Whether Lead Emissions from Piston-Engine Aircraft Endanger Human Health and Welfare