The D.C. Circuit held that EPA's regulations implementing the 2008 NAAQS for ozone exceed the Agency’s authority under the CAA. In 2008, EPA revised and strengthened the standards for ozone pursuant to the CAA. One of the revisions extended the deadline for some regions to attain the new standards...

The Second Circuit vacated individuals' convictions for making false statements and conspiring to violate CERCLA. The jury instructions stated that because the defendant has an interest in the outcome of the trial, he has a motive to testify falsely and that the jury should bear this in mind when ev...

A district court granted in part and denied in part motions to dismiss property owners' CERCLA contribution claims against a company for contamination stemming from a manufactured gas plant that the company's predecessor operated from the 1830s until the early 1900s. In 2010, some of the property ow...

The Ninth Circuit upheld a lower court decision dismissing an environmental group's citizen suit requesting EPA to issue more stringent regulations for ozone pollution under the PSD program. The group alleged that the EPA Administrator has a nondiscretionary duty to issue revised ozone regulations u...

A district court approved a $5.15 billion settlement agreement—the largest such recovery in American history—resolving two lawsuits in which a spin-off company and the U.S. government asserted fraudulent transfer and other claims against an energy company and its parent. In 2006, the energy comp...

A district court, on motions for partial summary judgment, dismissed a property owner's CERCLA claims against a lessee who subleased the property to a dry cleaner, who then allowed perchloroethylene to be released into groundwater. The owner sought contribution from the lessee for past and future en...

The Ninth Circuit held that DOT did not violate the CAA or NEPA in its approval of a planned expressway connecting the Ports of Los Angeles and Long Beach, California. In the course of the project’s approval process, DOT conducted an air quality conformity determination under the CAA, which involv...

A district court denied a manufacturing company's motion to dismiss a landowner's state law claims against it for breach of contract and for waste, but granted the company's motion to dismiss the landowner's claims for cleanup costs under CERCLA and state law. Since 1972, the landowner has leased th...

The D.C. Circuit dismissed automobile industry groups' petition challenging an EPA rule intended to mitigate the misfueling of vehicles and engines with gasoline containing greater than 10% ethanol (E10). Among other measures, the rule prohibits the use of E10 gasoline in certain vehicles, engines, ...

The Sixth Circuit held that a Florida utility's lawsuit to recover cleanup costs it has incurred in connection with the release of hazardous substances at two manufactured gas plant sites is time barred under CERCLA. As a former owner of the site, the utility is a PRP even though it did not release ...