ELR Citation: 41 ELR 20194
No(s). 09-16790 (9th Cir. May 27, 2011)

The Ninth Circuit held that the CAA does not preempt a local air district's adoption and enforcement of rules regulating air emissions from diesel-powered engines. CAA §209(e) expressly prohibits states from setting "standards or other requirements relating to the control of emissions" from no...