
Some business jets and large turboprop airplanes are included in new FAA final rules that enact Environmental Protection Agency-prescribed fuel efficiency certification requirements. The rules take effect on April 16 and apply to certain subsonic jet airplanes with a maximum takeoff weight greater than 5,700 kilograms (12,500 pounds) and to certain turboprop airplanes with a mtow greater than 8,618 kilograms (19,000 pounds).
Under this final rule, an airplane is subject to these certification requirements: (1) at new (original) type certification; (2) upon manufacture of any covered airplane after Jan. 1, 2028; or (3) when a modification to a covered airplane meets fuel efficiency change criteria specified in the regulations. Exempted are piston airplanes, airplanes used for firefighting, amphibious airplanes, non-pressurized airplanes, certain specialized operations airplanes, and out-of-production airplanes currently in service.