ELR Citation: 45 ELR 20096
No(s). 11-73924, 12-71332 (9th Cir. May 20, 2015)

The Ninth Circuit held that EPA violated the CAA when it approved California SIPs concerning NAAQS for ozone and fine particulate matter in the San Joaquin Valley. The SIPs relied on state-adopted mobile emissions standards to achieve their emission reduction goals. But the SIPs approved by EPA did ...