A district court held that EPA need not issue endangerment findings under the CAA for marine vessels and nonroad vehicles and engines, but it denied the Agency's motion to dismiss environmental groups' request for an endangerment finding with respect to aircraft engines. EPA argued that the CAA prov...
A district court denied environmental groups' petition for review challenging BLM's and the U.S. Forest Service's approval of several oil and gas lease sales in the San Juan Basin of northern New Mexico. The groups, who were concerned that the leases would contribute to ozone emissions, impact publi...
The Ninth Circuit upheld EPA's determination that a California SIP that imposes limits on motor vehicle emissions for years 2009 and 2012 are adequate for purposes of the state's transportation plans and projects. Although EPA’s overall approval process of the SIP is still underway, th...
A district court dismissed claims that an energy company is responsible for PSD violations at five coal-fired power plants it owns in Illinois. The court previously granted the company's motion to dismiss in 2010, but the United States, Illinois, and several citizen groups filed an amended c...
The Wyoming Supreme Court upheld a state-issued air quality permit authorizing a power plant's construction of a proposed coal-to-liquid facility and an associated underground coal mine. The court rejected an environmental group's claims that the permit fails to consider significant sulfur d...
The Fifth Circuit granted EPA's request to transfer to the D.C. Circuit Texas' petition for review of the Agency's call for revisions to the state's SIP because its prevention of significant deterioration (PSD) provisions fail to control greenhouse gases. Greenhouse gases have not always bee...
A district court held that the CAA preempts a city transit employee's negligence and strict liability claims against a company for injuries stemming from diesel exhaust fumes. The employees alleged that the design of the company's buses violated the emissions standards set out in the CAA and...
The Ninth Circuit granted citizen groups' petition for review of a final action by EPA approving in part and disapproving in part revisions to California's SIP for meeting CAA air quality standards for ozone. EPA's failure to order California to submit a revised attainment plan for the South...
The Third Circuit dismissed a petition for review of an EPA letter opining that facilities operated by a landfill and a neighboring energy company were under common control for purposes of air emissions permitting. The landfill owner challenged EPA's determination under CAA §307(b)(1), whic...
The Ninth Circuit held that the CAA does not preempt a California air pollution district rule requiring development sites to reduce the amount of pollutants they emit. CAA §209(e)(1) only preempts those standards or requirements relating to the control of emissions from "new" construction e...