; and (C) a timeline for any actions pursuant to subparagraphs (A) and (B) to be taken to update or modify existing policies related to the safe and efficient use of hydrogen to propel commercial aircraft. (b) FAA leadership on the certification of hydrogen-propelled commercial aircraft (1) In general The Administrator shall exercise leadership in the creation of Federal regulations, standards, and guidance relating to the safe and efficient certification of hydrogen-propelled commercial aircraft. (2) Exercise of leadership In carrying out paragraph (1), the Administrator shall— (A) establish a viable path for the certification of hydrogen-propelled aircraft that considers existing frameworks, modifying an existing framework, or developing a new framework as appropriate; (B) review certification regulations, guidance, and other requirements of the FAA to identify ways to safely and efficiently certify hydrogen-propelled commercial aircraft; (C) consider the needs of the aerospace industry, aviation suppliers, hydrogen producers, airlines, airport sponsors, fixed base operators, and other stakeholders when creating regulations and standards that enable the safe certification and deployment of hydrogen-propelled commercial aircraft in the national airspace system; and (D) obtain the input of the aerospace industry, aviation suppliers, hydrogen producers, airlines, airport sponsors, fixed base operators, and other stakeholders regarding— (i) the appropriate regulatory framework and timeline for permitting the safe and efficient deployment and operation of hydrogen-propelled aircraft in the United States, including updating or modifying existing regulations; (ii) how to accelerate the resolution of issues related to data and standards development and related regulations necessary to facilitate the safe and efficient certification of hydrogen-propelled commercial aircraft