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Emissions
SustainabilityFAA Releases Final Rule on Aircraft Fuel Efficiency for Emissions
The regulation requires fuel efficiency improvements in aircraft built after January 1, 2028.
Jonathan Welsh![](https://www.flyingmag.com/uploads/2024/02/iStock-1435054590.jpg?auto=webp&auto=webp&optimize=high&quality=70&width=1440)
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