; (2) consider the needs of the aerospace industry, aviation suppliers, hydrogen producers, airlines, airport sponsors, fixed base operators, and other stakeholders identified under subsection (b); (3) consider the needs of fuel cell manufacturers; and (4) seek to advance the competitiveness of the United States in the safe use of hydrogen in civil aviation. (f) Report to Congress Not later than 3 years after the date of enactment of this Act, the Secretary, acting through the Administrator and jointly with the Secretary of Energy, shall submit to the covered committees of Congress and the Committee on Transportation and Infrastructure of the House of Representatives a report detailing— (1) the actions of the Secretary, the Administrator, and the Secretary of Energy to exercise leadership in conducting research relating to the safe and efficient use of hydrogen in civil aviation; (2) the planned, proposed, and anticipated actions to update or modify existing policies related to the safe and efficient use of hydrogen in civil aviation, based on the results of the research and development carried out under this section, including such actions identified as a result of consultation with, and feedback from, the aerospace industry, aviation suppliers, hydrogen producers, airlines, airport sponsors, fixed base operators, academia and other stakeholders identified under subsection (b)