WASHINGTON (AP) — The Obama administration will unveil a proposal Friday to clean up gasoline and automobile emissions, a step that officials say will result in cleaner air across the U.S. and slightly higher prices at the pump.

The Environmental Protection Agency estimates that the rule to reduce sulfur in gasoline and tighten emissions standards on cars beginning in 2017 could increase gas prices by less than a penny per gallon and add $130 to the cost of a vehicle in 2025.