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diesel engines

Washington: Air

ELR State Update Item

California Dump Truck Owners Ass'n v. Nichols

ELR Case

The Ninth Circuit upheld the dismissal of a trucking association's federal preemption challenge to a California environmental regulation on diesel trucks. The regulation requires heavy-duty diesel trucks, whose emissions contribute...

Texas: Air

ELR State Update Item

Rhode Island: Air

ELR State Update Item

Jensen Family Farms, Inc. v. Monterey Bay Unified Air Pollution Control District

ELR Case

The Ninth Circuit held that the CAA does not preempt a local air district's adoption and enforcement of rules...