California 2031 Leaded Avgas Ban Signed Into Law - AVweb
California has signed a law banning the sale and use of leaded avgas (100LL) starting in 2031, requiring a transition to unleaded alternatives.
Aforeworn detected this change in the Aviation Maintenance & Airworthiness (FAA) space on July 29, 2026 and published this briefing so affected operators are forewarned rather than caught off guard. It is rated Medium urgency. All aircraft operators, flight schools, Part 145 repair stations, and fuel suppliers in California that rely on 100LL avgas. should confirm how it applies to their specific situation before acting. There is a time constraint attached: 2031 (exact date not specified in the excerpt; confirm in the law text).. Acting after that point can mean penalties, a lapsed licence, or lost eligibility — exactly the kind of surprise Aforeworn exists to prevent. Aforeworn monitors Aviation Maintenance & Airworthiness (FAA) continuously and turns every detected change into a plain-English briefing like this one, so you always know first. Forewarned is forearmed.
What changed
Leaded avgas (100LL) will be prohibited for sale and use in California after 2031.
Who it affects
All aircraft operators, flight schools, Part 145 repair stations, and fuel suppliers in California that rely on 100LL avgas.
What you must do
Begin planning for transition to unleaded avgas (e.g., G100UL, Swift Fuel, or other FAA-approved alternatives) and ensure aircraft compatibility.
Deadline
2031 (exact date not specified in the excerpt; confirm in the law text).
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