President Donald Trump is expected to announce a proposal Wednesday to weaken vehicle mileage rules for the auto industry, loosening regulatory pressure on automakers to control pollution from gasoline-powered cars and trucks, according to several people familiar with the White House plans.
The proposal would significantly reduce fuel economy requirements, which set rules on how far new vehicles need to travel on a gallon of gasoline, through the 2031 model year, according to a White House official and several people familiar with the plan. They were not authorized to discuss the matter publicly because the proposal has not been announced and spoke on condition of anonymity.
