1. Short title This Act may be cited as the Open Fuel Act of 2017 . 2. Open fuel requirement for motor vehicles Chapter 329 of title 49, United States Code, is amended by inserting after section 32905 the following new section: 32905A. Open fuel requirement for motor vehicles. (a) Requirements Except as provided in subsection (c), each manufacturer’s fleet of covered vehicles for a particular model year shall be comprised of— (1) not less than 50 percent qualified vehicles beginning in model year 2020; and (2) not less than 80 percent qualified vehicles beginning in model year 2021 and each subsequent year. (b) Additional definitions As used in this section— (1) the term covered vehicle means a passenger automobile, and includes a light-duty motor vehicle; (2) the term qualified vehicle means covered vehicle that— (A) has been warranted by its manufacturer to operate on natural gas, hydrogen, or biodiesel; (B) is a flexible fuel vehicle; (C) is a plug-in electric drive vehicle; (D) is propelled solely by a fuel cell that produces power without the use of petroleum or a petroleum-based fuel; or (E) is propelled solely by something other than an internal combustion engine, and produces power without the use of petroleum or a petroleum-based fuel; (3) the term flexible fuel vehicle means a vehicle that has been warranted by its manufacturer to operate on gasoline, E85, and M85; (4) the term E85 means a fuel mixture containing up to 85 percent ethanol and meets the standards of ASTM D5798; (5) the term M85 means a fuel mixture containing up to 85 percent methanol and meets the standards of ASTM D5797; (6) the term biodiesel means diesel fuel which has been produced from a non-petroleum feedstock and which meets the standards of ASTM D6751–03; (7) the term plug-in electric drive vehicle has the meaning given such term in section 508(a)(5) of the Energy Policy Act of 1992 ( 42 U.S.C. 13258(a)(5) )