"Environmental Protection Agency (EPA) Administrator Scott Pruitt says he supports a unified national vehicle fuel standard, stoking state fears that the agency may do away with waivers allowing states to implement stronger standards.

Speaking before the Senate Environment and Public Works Committee Tuesday, Pruitt said maintaining one national program is "essential."

Some states, including California and Massachusetts, currently set higher fuel emission standards than the federal standard, as allowed under a waiver program determined by former President Obama."

Miranda Green reports for The Hill January 30, 2018. [2]