; and (B) components of a gas pipeline facility, including valves and meters. (d) Report Not later than 1 year after the date of enactment of this Act, the Comptroller General shall submit to the Committee on Energy and Commerce and the Committee on Transportation and Infrastructure of the House of Representatives and the Committee on Commerce, Science, and Transportation of the Senate a report on the results of the study conducted under subsection (a). (e) Rulemaking The Secretary of Transportation may consider the results of the study under subsection (a) in issuing any final rule related to the transportation of a gas blend that contains greater than 5 percent hydrogen by volume. (f) Statutory construction Nothing in this section shall be construed to prohibit or otherwise limit the authority of the Secretary of Transportation to issue a final rule relating to the transportation of a gas blend that contains greater than 5 percent hydrogen by volume prior to the submission of the report under subsection (d). (g) Gas pipeline facility defined In this section, the term gas pipeline facility has the meaning given such term in section 60101 of title 49, United States Code.