Center for Biological Diversity v. National Highway Traffic Safety Administration

The 9th Circuit rejected the federal government’s request to revisit its November 2007 ruling that struck down new fuel economy standards for sport utility vehicles and other light-duty trucks, reaffirming its decision that the National Highway Traffic Safety Administration did not adequately consider carbon dioxide emissions when developing new corporate average fuel economy (CAFE) standards for these vehicles, but slightly revising the relief granted to require either an environmental assessment or an environmental impact statement.