US senators urge regulator to change guidance on Massachusetts auto law

Senators Elizabeth Warren and Ed Markey, both Democrats of Massachusetts, said in a letter to NHTSA and the U.S. Department of Transportation that the agency's decision "to give auto manufacturers a green light to ignore state law appears to favor Big Auto."

They added the decision will "undermine the will of Massachusetts voters and the Biden Administration's competition policy, and raise questions about both the decision process and the substance of the decision by NHTSA's leadership."