FAA Transition Plan to Unleaded Aviation Gasoline V1.0
The FAA is releasing an updated FAA Transition Plan to Unleaded Aviation Gasoline (Version 1.0). This updated version reflects input that FAA received during a 60-day public com...
Federal Aviation Administration (FAA), Department of Transportation (DOT).
ACTION:
Notice of availability.
SUMMARY:
The FAA is releasing an updated FAA Transition Plan to Unleaded Aviation Gasoline (Version 1.0). This updated version reflects input that FAA received during a 60-day public comment period beginning January 12, 2026, on a draft Transition Plan to Unleaded Aviation Gasoline. The FAA has updated the Plan based on the public comments and included additional details and clarification throughout the document.
Paul Wrzesinski, Ph.D., Senior Technical Specialist, FAA Office of Senior Technical Experts, Aircraft Certification Service, 800 Independence Avenue SW, Washington, DC 20591. Email
Paul.J.Wrzesinski@faa.gov.
SUPPLEMENTARY INFORMATION:
Section 827 of the FAA Reauthorization Act of 2024 directed FAA to develop a transition plan to safely enable the transition of the piston-engine aircraft fleet to unleaded aviation gasoline by
( printed page 48970)
2030, to the extent practicable. In response, the FAA developed a draft Transition Plan to Unleaded Aviation Gasoline. This Transition Plan outlined strategies to safely eliminate lead aviation fuels, approve unleaded alternatives for piston-engine aircraft, ensure continued availability of aviation gasoline, and promote widespread access to unleaded aviation gasoline at airports. FAA provided a 60-day comment period on this draft, between January 12, 2026 and March 13, 2026, published at 91 FR 1230 on January 12, 2026 and corrected at 91 FR 2268 on January 16, 2026.
After reviewing comments, FAA is now releasing an updated FAA Transition Plan to Unleaded Aviation Gasoline document, V1.0. In response to comments, this update adds more information and clarification throughout the Transition Plan. Also, FAA identified four significant areas for future updates:
(1) Progress update on Phase I, Fuels Evaluation and Authorization,
(2) Commitment to release an updated Transition Plan, V2.0, at the conclusion of Phase 1, to inform subsequent transition phases,
(3) Development of frequently asked questions (FAQs), and
(4) Publishing a document summarizing public comments.
Building on years of collaborative efforts through the government-industry initiative, Eliminate Aviation Gasoline Lead Emissions (EAGLE), this plan aims to transition to lead-free aviation fuels for piston-engine aircraft in a safe and efficient manner. The 2024 FAA Reauthorization Act Section 827 reinforces the critical need for this transition, mandating that FAA continue collaborations with industry and federal stakeholders to eliminate lead emissions from aviation gasoline.
Issued in Washington, DC, on July 30, 2026.
Caitlin Locke,
Associate Administrator for Aviation Safety Oversight and Certification.