The Federal Circuit, in a case involving an electronics manufacturer's challenge to excise taxes on the use of ozone depleting chemicals (ODCs), reversed a lower court decision ordering the…
The Ninth Circuit denied a chemical company's petitions for review challenging EPA's partial disapproval of a proposed revision to Montana's SIP governing sulfur dioxide (SO2)…
A district court dismissed an automobile engine manufacturer's lawsuit against EPA seeking to force the Agency to recall model year 2010 heavy-duty diesel engines equipped with liquid, urea…
A district court vacated EPA's stay of two rules setting forth emission standards from boilers and commercial and industrial solid waste incineration units. EPA issued the rules on March 21,…
A California appellate court affirmed a lower court decision dismissing a petition challenging an air district's abatement order directing the owners of an open-pit mining operation to…
The D.C. Circuit remanded EPA's NESHAPs for portland cement facilities. While EPA was establishing the NESHAPs, it was simultaneously developing a definition of commercial and industrial…
A district court held that Washington state must establish reasonably available control technology (RACT) for greenhouse gas emissions. Based on its plain language, the RACT provision contained…
The D.C. Circuit upheld an EPA rule issued in 2010 that amends and clarifies transportation conformity regulations as they pertain to hot spot analyses in particulate matter (PM) nonattainment and…
A district court dismissed the U.S. government's lawsuit against the current and former owners of a coal-fired power plant in Indiana County, Pennsylvania, for alleged CAA violations. The…
A district court denied EPA's motion to dismiss an environmental group's lawsuit challenging the Agency's administrative stay of two rules setting forth hazardous air emission…