42 U.S.C. § 8630
Renewable fuels
In providing assistance pursuant to this subchapter, a State, or any other person with which the State makes arrangements to carry out the purposes of this subchapter, may purchase renewable fuels, including biomass.
( Pub. L. 97–35, title XXVI, § 2612 , as added Pub. L. 109–58, title I, § 121(b) , Aug. 8, 2005 , 119 Stat. 616 .)