The D.C. Circuit denied petitions to downlist the straighthorned markhor, a subspecies of wild goat found in Pakistan, from endangered to threatened. The petitioners—safari clubs, hunters, and international conservationists—argued that FWS violated the ESA and APA by failing to issue a 12-month ...

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 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 ...

The Ninth Circuit affirmed a lower court decision rejecting claims that the National Marine Fisheries Service (NMFS) violated the ESA when it placed commercial fishing restrictions on sub-regions of the Pacific Ocean inhabited by the endangered western distinct population segment of Stellar sea lion...

The D.C. Circuit denied states' and industry groups' petitions challenging EPA rules establishing CAA permitting requirements in states that do not have implementation plans for greenhouse gases. The rules were designed to ensure that a permitting authority was available to issue the required greenh...

The Third Circuit upheld an EPA rule imposing sulfur dioxide (S02) limits on a coal-fired power plant in Pennsylvania whose emissions travel directly across a river into areas of New Jersey. The owner of the plant challenged EPA's authority to impose direct regulations on the plant before the time t...