"A federal appeals court ruled Friday that a group of California companies cannot sue to stop the Environmental Protection Agency’s (EPA) efficiency and greenhouse gas rules for heavy trucks.

The decision keeps in place the federal government’s first rules on truck efficiency and greenhouse gases, which the EPA developed jointly with the Transportation Department’s National Highway Traffic Safety Administration (NHTSA) in 2011.

The three judges in the Court of Appeals for the District of Columbia Circuit unanimously concluded that a trucking association and a construction company in California cannot challenge the regulations in court because they could not prove that the EPA rule, and not the NHTSA rule, is responsible for the increased truck prices that they have to pay."

Timothy Cama reports for The Hill April 24, 2015. [2]