; (B) the approval of the use of unleaded alternatives to leaded aviation gasoline for use in all piston-engine aircraft types and piston-engine models; (C) the implementation of the requirements of section 47107(a)(22) of title 49, United States Code, as added by this Act, as such requirements relate to the continued availability of aviation gasoline; (D) efforts to make unleaded aviation gasoline that is approved for use in piston-engine aircraft and engines widely available for purchase and use at airports in the National Plan of Integrated Airport Systems; and (E) the development of a transition plan to safely enable the transition of the piston-engine general aviation aircraft fleet to unleaded aviation gasoline by 2030, to the extent practicable. (3) Activities In carrying out the responsibilities of the Administrator pursuant to paragraph (2), the Administrator shall, at a minimum— (A) maintain a fleet authorization process for the efficient approval or authorization of eligible piston-engine aircraft and engine models to operate safely using qualified unleaded aviation gasolines; (B) review, update, and prioritize, as soon as practicable, certification processes and projects, as necessary, for aircraft engines and modifications to such engines to operate with unleaded aviation gasoline; (C) seek to facilitate programs that accelerate the creation, evaluation, qualification, deployment, and use of unleaded aviation gasolines; (D) carry out, in partnership with the general aviation community, an ongoing campaign for training and educating aircraft owners and operators on how to safely transition to unleaded aviation gasoline; (E) evaluate aircraft and aircraft engines to ensure that such aircraft and aircraft engines can safely operate with unleaded aviation gasoline candidates during cold weather conditions