; and (D) leverage the existing aviation system to the greatest extent possible to support advanced air mobility operations. 822. Aviation Rulemaking Committee on certification of powered-lift aircraft (a) In general Not later than 180 days after the date on which the first special class type certificate for powered-lift aircraft is issued, the Administrator shall establish an Aviation Rulemaking Committee (in this section referred to as the Committee ) to provide the Administrator with specific findings and recommendations for the creation of a standard certification pathway for the certification of powered-lift aircraft. (b) Report (1) In general Not later than 1 year after the date on which the Committee is established under subsection (a), the Committee shall submit to the Administrator a report detailing the findings and recommendations of the Committee. (2) Considerations In submitting the report under paragraph (1), the Committee shall consider the following: (A) Broad, outcome-driven safety objectives that will spur innovation and technology adoption and promote the development of performance-based regulations. (B) Lessons and insights learned from previously published FAA special conditions and other Federal Register notices of airworthiness certification criteria for powered-lift aircraft. (c) Rulemaking Not later than 90 days after the date on which the Committee submits the report to the Administrator under subsection (b), the Administrator shall initiate a rulemaking to implement the findings and recommendations of the Committee, as determined appropriate by the Administrator. 823. Application of National Environmental Policy Act (NEPA) categorical exclusions for vertiport projects (a) In general In considering the environmental impacts of a proposed vertiport project on an existing airport, the Administrator shall— (1) apply an applicable categorical exclusion in accordance with the National Environmental Policy Act of 1969 ( 42 U.S.C. 4321 et seq. ) and subchapter A of chapter V of title 40, Code