The Fifth Circuit upheld EPA's decision to disapprove certain revisions to Texas' SIP. EPA disapproved the revisions concerning the state's "qualified facilities program…
The D.C. Circuit vacated an interim final rule issued by EPA that would allow manufacturers of heavy-duty diesel engines to pay nonconformance penalties in exchange for the right to sell engines…
The Sixth Circuit held that the CAA's citizen suit provision does not allow an environmental group to file suit to compel the state of Ohio to administer a particular federal CAA regulation…
A California court overturned a small claims court's grant of damages in favor of a woman who filed suit against an automobile manufacturer for making fraudulent claims about her hybrid car…
A district court held that EPA does not have a mandatory duty to review and, if necessary, promulgate new PSD rules for ozone simply because the NAAQS for ozone has been revised. The history of…
A district court held that an environmental group may go forward with its CAA citizen suit against EPA for failing to promulgate by November 15, 2000, regulations to reduce hazardous air…
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…