Trump to Roll Back Biden-Era Fuel Mileage Standards

President Donald Trump said Sept. 26, 2026 he will roll back Biden-era fuel economy standards — rules on how far cars must go per gallon. Trump claims ending what he calls Biden's 'EV mandate' will lower prices and lift U.S. production. No federal law forces EV purchases. Details are pending after Transportation Secretary Sean Duffy teased a Monday announcement.