The Fifth Circuit vacated EPA's disapproval of three Texas regulations that provide for a standardized permit for minor new source review (NSR) pollution control projects that reduce or…
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 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 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…