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Monday, 12 September, 2022

NATA Offers Unleaded Avgas Best Practices for Aviation Fuel Providers

Washington, DC, September 12, 2022 – Today, the National Air Transportation Association (NATA) released “Unleaded Avgas Conversion Considerations for Aviation Fuel Providers,” a white paper developed by the Association’s GA Fuel Subcommittee, with industry input and support, to educate fuel service providers on best practices for deploying unleaded avgas.

“With the spotlight glowing ever brighter on unleaded aviation fuels, industry stakeholders have been proactively seeking information on considerations for offering more environmentally friendly fuel options,” stated NATA Managing Director of Industry and Regulatory Affairs Megan Eisenstein. “NATA is pleased to offer guidance to assist them in taking a leadership role in advancing the national effort to reduce lead emissions from piston-engine aircraft through safe and effective unleaded avgas implementation.”

NATA, along with other industry and government stakeholders, supports the Eliminate Aviation Gasoline Lead Emissions (EAGLE) Initiative’s goal of a lead-free future for U.S. piston-engine aircraft by the end of 2030. FAA’s recent issuance of Supplemental Type Certificates (STCs) approving the use of GAMI’s 100 octane unleaded avgas (G100UL) in all spark-ignition piston aircraft and engines in the general aviation (GA) fleet represents a major step forward for the future of unleaded avgas, with other fuel producers such as Swift Fuels, Phillips66/Afton Chemical, and Lyondell Chemical/VP-Racing also actively pursuing approvals.

Among EAGLE’s aims is eliminating the use of leaded fuels without adversely impacting the safe and efficient operation of the existing GA fleet – which includes maintaining 100 Low Lead (100LL) availability across the country during the transition.

NATA’s white paper assists in the effort by suggesting four key phases for fuel providers offering UL Avgas in addition to 100LL: Discovery, Preliminary Communications, Infrastructure Considerations, and Final Communications.

Once multiple grades of Avgas are deployed at airports, the key concern becomes the increased risk for misfueling.

“It is critical to have a misfueling prevention program in place, and to implement comprehensive management of change processes and perform risk assessments when introducing new fuels,” said Steve Berry, NATA Managing Director of Safety and Training. “Keeping lines of communication open between pilots and FBOs throughout the fueling process is also essential.”

NATA, through its Safety 
1st program, provides free misfueling prevention training and resources at and will soon release a new version of this training, highlighting UL misfueling.

Additional information on the Eagle Initiative can be found here and a NATA-developed Unleaded Avgas Fact Sheet can be found here.

For general press inquiries, contact Shannon Chambers at 703-298-1347 or

The National Air Transportation Association (NATA) has been the voice of aviation business for more than 80 years. Representing nearly 3,700 aviation businesses, NATA’s member companies provide a broad range of services to general aviation, the airlines and the military and NATA serves as the public policy group representing the interests of aviation businesses before Congress and the federal agencies.