NHTSA Proposes To Undo Trump-era Attack On State Auto GHG Rules

The Transportation Department (DOT) is floating a proposed rule finding that the Trump administration likely exceeded its authority in issuing a regulation deeming state vehicle greenhouse gas standards as preempted by federal energy law, in a step toward EPA restoration of a federal preemption waiver for California’s vehicle rules. Steven Cliff, acting administrator of DOT’s National Highway Traffic Safety Administration (NHTSA), signed the April 22 proposed rule that seeks to withdraw the department’s portion of the 2019 rule that argued...