42 U.S. Code § 13236 - Alternative fuel bus program
The Secretary of Transportation may also provide, in accordance with such rules as he may prescribe, financial assistance to any agency, municipality, or political subdivision in an urban area referred to in subsection (a), of any State or the District of Columbia for the purpose of meeting the incremental costs of school buses that are dedicated vehicles and used regularly for such transportation during the school term. Such costs may include the purchase and installation of alternative fuel refueling facilities to be used for school bus refueling, and the conversion of school buses to dedicated vehicles. The Secretary of Transportation may provide such assistance directly to a person who is a contractor of such agency, municipality, or political subdivision, upon the request of the agency, municipality, or political subdivision, and who, under such contract, provides for such transportation. Any conversion under this subsection shall comply with the warranty and safety requirements for alternative fuel conversions contained in section 7587  of this title.
There are authorized to be appropriated not more than $30,000,000 for each of the fiscal years 1993, 1994, and 1995 for purposes of this section.
 See References in Text note below.
Section 7587 of this title, referred to in subsec. (c), was in the original “section 247 of the Clean Air Act Amendments of 1990”, Pub. L. 101–549, and was translated as reading “section 247 of the Clean Air Act”, meaning section 247 of act July 14, 1955, ch. 360, title II, as added Nov. 15, 1990, Pub. L. 101–549, title II, § 229(a), 104 Stat. 2523, to reflect the probable intent of Congress, because the Clean Air Act Amendments of 1990 does not contain a section 247, and section 247 of the Clean Air Act relates to alternate fuel conversions for vehicles.