In this task, you are given a summary for US Congressional and California state bill, your task is to generate a Title for this bill. The preferred titles are under forty words and mention the purpose of the bill.
Q: Open Fuel Act of 2015 This bill requires each fleet of a manufacturer of passenger automobiles (including light-duty motor vehicles) to comprise at least: 30% qualified vehicles in model year 2018, and 50% qualified vehicles in model year 2019 and each subsequent year. A "qualified vehicle" is: a vehicle that operates on natural gas, hydrogen, or biodiesel; a flexible fuel vehicle capable of operating on gasoline, E85, and M85; a plug-in electric drive vehicle; or a vehicle propelled solely by fuel cell or by something other than an internal combustion engine. The bill authorizes a manufacturer to request an exemption from such requirement from the Department of Transportation.
A:
Open Fuel Act of 2015