(a) Representation The Secretary may represent the United States interests with respect to activities and programs under this subchapter, in coordination with the Department of Transportation , the National Institute of Standards and Technology , and other relevant Federal agencies, before governments and nongovernmental organizations including— (1) other Federal, State, regional, and local governments and their representatives; (2) industry and its representatives, including members of the energy and transportation industries; and (3) in consultation with the Department of State , foreign governments and their representatives including international organizations. (b) Regulatory authority Nothing in this subchapter shall be construed to alter the regulatory authority of the Department . ( Pub. L. 109–58, title VIII, § 819 , formerly § 814, Aug. 8, 2005 , 119 Stat. 855 ; renumbered § 819, Pub. L. 117–58, div. D, title III, § 40314(1) , Nov. 15, 2021 , 135 Stat. 1008 .)