FAA Transition Plan to Unleaded Aviation Gasoline V1.0

Official abstract: 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.