The D.C. Circuit ordered EPA to submit a timeline for when it will issue its financial assurance rules under CERCLA to ensure that industries that handle hazardous substances have the financial means to clean up any releases. It has been nearly 30 years since Congress charged EPA with issuing such r...

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 ...

The Ninth Circuit denied community groups' petition for review challenging EPA's approval of revisions to California's SIP concerning air emissions from pesticides, known as the "pesticide element." The revisions related to the reduction of volatile organic compounds in the San Joaquin and Ventura a...

A district court held that a corporation subject to an EPA unilateral administrative order (UAO) in connection with the Columbia Nitrogen Superfund site in Charleston, South Carolina, may seek contribution under CERCLA §113 and not §107. Defendant companies argued that the corporation was preclude...

The D.C. Circuit reversed and vacated a portion of a January 2013 rule in which EPA revised the NESHAPs and new source performance standards for backup generators. Specifically, the court held that EPA acted arbitrarily and capriciously when it modified the NESHAPs and NSPS to allow backup generator...

The D.C. Circuit dismissed petitions challenging EPA's and the National Highway Traffic Safety Administration's (NHTSA's) coordinated rules governing the greenhouse gas emissions and fuel economy of cars and trucks. One group of petitioners—businesses, associations, and individuals located in Cali...