The Ninth Circuit upheld the dismissal of an environmental group's challenge to a CAA permit that allows an oil company to conduct "pollutant emitting activities" associated with a drilling vessel in the Beaufort Sea off Alaska's North Slope. CAA §504(e) is ambiguous as to whether "increment" requi...

The Third Circuit affirmed a lower court decision dismissing the U.S. government's lawsuit against the current and former owners of a coal-fired power plant in Indiana County, Pennsylvania, for alleged CAA violations that took place 15-20 years earlier. The government alleged that the former owners ...

The Third Circuit held that the CAA does not preempt state law tort claims brought by private property owners against a source of pollution located within the state. The case arose after a group of 1,500 residents who live within one mile of a coal-fired power plant filed suit against the facility u...

The D.C. Circuit remanded EPA's "maximum achievable control technology" (MACT) standards for sewage sludge incinerators under CAA §129. The court upheld EPA's authority to regulate sewage sludge incinerators under §129, deferring to the Agency's interpretation of "solid waste incineration unit" as...

The D.C. Circuit ordered NRC to resume processing of DOE's pending license application to store nuclear waste at Yucca Mountain. The Nuclear Waste Policy Act requires NRC to issue a final decision approving or disapproving the application within three years of its submission. DOE submitted its appli...

The D.C. Circuit denied petitions challenging EPA's revised NESHAPs for primary lead processing operations. Despite petitioners' argument to the contrary, EPA's use of the lead NAAQS as a benchmark in setting a NESHAP for lead compounds does not violate the CAA's prohibition on regulating elemental ...

A Texas appellate court held that an insurance company has a duty to defend its insured in underlying lawsuits stemming from a sinkhole formed by the insured's waste disposal well operations. The insurance company argued that it had no duty to defend because the insurance policy contains a pollution...

A California appellate court held that a newly enacted state law that prohibits counties from restricting or limiting the importation of solid waste into a privately owned facility in the county based on the waste's place of origin preempts a voter-approved 1984 initiative measure that severely rest...