The FAA has issued a final rule that will require most larger aircraft built after Jan. 1, 2028, to meet new efficiency standards designed to reduce their carbon emissions per passenger mile. The new rule will cover all subsonic jets with a maximum takeoff weight of more than 12,500 pounds and turboprops with an MTOW of 19,000 pounds. The new rules will bring the U.S. in line with ICAO standards and are part of the U.S. Aviation Climate Action Plan. “We are taking a large step forward to ensure the manufacture of more fuel-efficient airplanes, reduce carbon pollution, and reach our goal of net-zero emissions by 2050,” said FAA Administrator Mike Whitaker. The rule sets fuel efficiency limits based on calculations of the planes' size vs. fuel burn.
This is a companion discussion topic for the original entry at https://www.avweb.com/aviation-news/faa-adopts-carbon-limits-for-airliners