II 118th CONGRESS 2d Session S. 4070 IN THE SENATE OF THE UNITED STATES March 22, 2024 Mr. Tester (for himself and Mr. Young ) introduced the following bill; which was read twice and referred to the Committee on Environment and Public Works A BILL To amend the Clean Air Act to modify the definition of small refinery for purposes of the Renewable Fuel Program, and for other purposes.