FAA finalizes 100LL phaseout plan but leaves key details unresolved

The Federal Aviation Administration (FAA) has finalized its plan to eliminate 100 Low Lead (100LL) aviation gasoline nationwide in the United States. This phased approach will occur over a period of several years, beginning January 1, 2028. The FAA intends for all leaded aviation fuel sales to cease by December 31, 2042. Despite this finalization, significant details regarding specific timelines and potential exemptions remain unclear at present. Concerns persist about the availability of alternative fuels and their suitability for certain aircraft types following the complete phaseout.