The Eighth Circuit held that under Missouri law, an insurance company has no duty to defend a lead producer in an underlying lawsuit alleging environmental property damage resulting from the lead producer's mine and mill operations. The policy contained an absolute pollution exclusion clause, and he...

The Fifth Circuit held that the CAA does not preempt a local ordinance that allows taxicabs certified to run on compressed natural gas (CNG) to cut ahead of gasoline-powered taxis in the queue for picking up passengers at Love Field Airport in Dallas. The ordinance does not create an enforceable sta...

The D.C. Circuit dismissed as unripe a trade association's lawsuit challenging portions of a Federal Rail Administration (FRA) rule that requires qualifying rail carriers to submit an implementation plan to install a "positive train control" (PTC) system no later than December 31, 2015, on certain t...

The D.C. Circuit upheld EPA's revised NESHAPs for secondary lead smelting facilities. In 2012, acting pursuant to CAA §§112(d)(6) and 112(f)(2), EPA revised the 1995 emissions standards for secondary lead smelting facilities, reducing allowable emissions by 90% and requiring smelters to totally en...

A district court upheld the U.S. Department of Health and Human Services' (HHS') decision to list styrene in its Twelfth Report on Carcinogens, which identifies agents, substances, mixtures, and exposure circumstances that are known or reasonably anticipated to cause cancer in humans. The report pro...