II 118th CONGRESS 1st Session S. 944 IN THE SENATE OF THE UNITED STATES March 22, 2023 Mr. Grassley (for himself, Ms. Klobuchar , Ms. Ernst , and Ms. Duckworth ) introduced the following bill; which was read twice and referred to the Committee on Environment and Public Works A BILL To promote low-carbon, high-octane fuels, to protect public health, and to improve vehicle efficiency and performance, and for other purposes.