9th Circuit Faults EPA Approval Of California SIP Without Vehicle Air Rules

Correction Appended The U.S. Court of Appeals for the 9th Circuit has partially granted environmentalists' suit challenging EPA's approval of a state implementation plan (SIP) for reducing emissions in the San Joaquin Valley, after finding that the agency erred by not requiring the SIP to include state mobile source rules EPA had previously approved. But the May 20 unanimous ruling by a three-judge panel of the 9th Circuit in Committee for a Better Arvin, et al., v. EPA, et...