The D.C. Circuit upheld EPA's rule designating certain areas in Utah as nonattainment for the 2006 24-hour fine particulate matter (PM2.5) standard. Petitioners—two counties, three cities,…
A district court partially dismissed EPA's lawsuit against an energy company for violating the CAA when it allegedly undertook major modifications at a coal-fired power plant in Festus,…
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 held that EPA's approval of the 2004 SIP for the San Joaquin Valley nonattainment area for the one-hour ozone NAAQS was arbitrary and capricious. Although it approved 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…