The U.S. Department of Justice has filed two federal complaints against the California Air Resources Board (CARB) over the state’s enforcement of emissions standards voided by the Trump administration, officials said on Aug. 15.
The DOJ said federal law preempts CARB from enforcing emissions rules governing heavy-duty trucks and engines. The department sued after a House of Representatives committee said it recently learned that staff at CARB won’t let auto manufacturers bring vehicles to market unless they comply with California’s standards.