As the Trump administration begins to dismantle Barack Obama’s ambitious auto efficiency regulations, California is said to be poised to retaliate by doing something that automakers have feared: de-coupling the state’s rules with those set in Washington.
The U.S. Environmental Protection Agency has concluded Obama rules to limit vehicle greenhouse-gas emissions are too aggressive and should be revised, according to people familiar with the determination. The agency is scheduled to make the decision public by April 1.
