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Code · BILL · 117th Congress · S. 4621 (Introduced in Senate) — To promote low-carbon, high-octane fuels, to protect public health, and to improve vehicle efficiency and performance... · Sec. 9

Sec. 9. New fuel effects study

293 words·~1 min read·/bill/117/s/4621/is/section-9

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Subject to subsection (b), the Administrator of the Environmental Protection Agency (referred to in this section as the Administrator ) shall carry out a study of the emissions effects of ethanol-blended fuels in light-duty vehicles and light-duty trucks, for the purpose of updating the Motor Vehicle Emission Simulator modeling system. In designing and conducting the study under paragraph (1), the Administrator shall— select test fuels that— reflect a range of ethanol concentrations between 0 and at least 25 percent by volume; and are representative of fuels that are widely available on the date of enactment of this Act or reasonably could be available regionally or nationally, taking into account fuel refinery operations and economics, including the cost of reformate; select test vehicles that are representative of vehicles of recent model years as of the date of enactment of this Act that include relevant technologies that are, or reasonably may come to be, in widespread use; measure emission products of combustion including, at a minimum— particulate matter of 2.5 micrometers in diameter or less; ultrafine particulate matter of 0.1 micrometers in diameter or less; nitrogen oxides; total hydrocarbons; nonmethane organic gas; carbon monoxide; benzene; toluene; ethylbenzene; xylene; 1,3-butadiene; ethanol; and polycyclic aromatic hydrocarbons, including at a minimum benzo(a)pyrene; measure the tendency of measured emissions to form secondary organic aerosols and any other relevant secondary air pollution; and consult with the Secretary of Energy, the Secretary of Agriculture, and the Secretary of Transportation (or their delegates).
The Administrator shall— provide the proposed design of the study under subsection
(a)to the Secretary of Energy for review; and not commence the study under subsection
(a)until the Secretary of Energy certifies in writing that the design of the study complies with the requirements of subsection (a).
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