Page:United States Statutes at Large Volume 121.djvu/1555

 121 STAT. 1534

PUBLIC LAW 110–140—DEC. 19, 2007

a program of research, development, demonstration, and commercial application on technologies and processes to enable biorefineries that exclusively use corn grain or corn starch as a feedstock to produce ethanol to be retrofitted to accept a range of biomass, including lignocellulosic feedstocks.’’. SEC. 225. STUDY OF OPTIMIZATION OF FLEXIBLE FUELED VEHICLES TO USE E–85 FUEL.

(a) IN GENERAL.—The Secretary, in consultation with the Secretary of Transportation and the Administrator of the Environmental Protection Agency, shall conduct a study of whether optimizing flexible fueled vehicles to operate using E–85 fuel would increase the fuel efficiency of flexible fueled vehicles. (b) REPORT.—Not later than 180 days after the date of enactment of this Act, the Secretary shall submit to the Committee on Science and Technology and the Committee on Energy and Commerce of the House of Representatives, and to the Committee on Energy and Natural Resources, the Committee on Environment and Public Works, and the Committee on Commerce, Science, and Transportation of the Senate, a report that describes the results of the study under this section, including any recommendations of the Secretary. SEC. 226. STUDY OF ENGINE DURABILITY AND PERFORMANCE ASSOCIATED WITH THE USE OF BIODIESEL.

(a) IN GENERAL.—Not later than 30 days after the date of enactment of this Act, the Secretary, in consultation with the Administrator of the Environmental Protection Agency, shall initiate a study on the effects of the use of biodiesel on the performance and durability of engines and engine systems. (b) COMPONENTS.—The study under this section shall include— (1) an assessment of whether the use of biodiesel lessens the durability and performance of conventional diesel engines and engine systems; and (2) an assessment of the effects referred to in subsection (a) with respect to biodiesel blends at varying concentrations, including the following percentage concentrations of biodiesel: (A) 5 percent biodiesel. (B) 10 percent biodiesel. (C) 20 percent biodiesel. (D) 30 percent biodiesel. (E) 100 percent biodiesel. (c) REPORT.—Not later than 24 months after the date of enactment of this Act, the Secretary shall submit to the Committee on Science and Technology and the Committee on Energy and Commerce of the House of Representatives, and to the Committee on Energy and Natural Resources and the Committee on Environment and Public Works of the Senate, a report that describes the results of the study under this section, including any recommendations of the Secretary. SEC. 227. STUDY OF OPTIMIZATION OF BIOGAS USED IN NATURAL GAS VEHICLES.

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(a) IN GENERAL.—The Secretary, in consultation with the Administrator of the Environmental Protection Agency and the Secretary of Transportation, shall conduct a study of methods of increasing the fuel efficiency of vehicles using biogas by optimizing natural gas vehicle systems that can operate on biogas, including

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