The Department of Justice (DOJ) is joining two industry lawsuits seeking to invalidate the California Air Resources Board’s (CARB) 2023 deal with truck manufacturers to reduce emissions, providing additional arguments about why the state cannot enforce standards that DOJ says have been preempted by the federal government. “Agreement, contract, partnership, mandate -- whatever California wants to call it, this unlawful action attempts to undermine federal law,” said Acting Assistant Attorney General Adam Gustafson of DOJ’s Environment and Natural Resources Division...