; (B) flights for which pilots and passengers may not share expenses; (C) the methods of communication that pilots and passengers may use to arrange flights for which expenses are shared; and (D) the methods of communication that pilots and passengers may not use to arrange flights for which expenses are shared. (b) Report (1) In general Not later than 180 days after the date on which guidance is made publicly available under subsection (a), the Comptroller General of the United States shall submit to the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Commerce, Science, and Transportation of the Senate a report analyzing Federal policy with respect to pilots sharing flight expenses with passengers. (2) Evaluations included The report submitted under paragraph (1) shall include an evaluation of— (A) the rationale for such Federal policy; (B) safety and other concerns related to pilots sharing flight expenses with passengers; and (C) benefits related to pilots sharing flight expenses with passengers. 517. Aviation rulemaking committee for part 135 pilot rest and duty rules (a) In general Not later than 180 days after the date of enactment of this Act, the Administrator of the Federal Aviation Administration shall convene an aviation rulemaking committee to review, and develop findings and recommendations regarding, pilot rest and duty rules under part 135 of title 14, Code of Federal Regulations. (b) Duties The Administrator shall— (1) not later than 2 years after the date of enactment of this Act, submit to the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Commerce, Science, and Transportation of the Senate a report based on the findings of the aviation rulemaking committee