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 the CAA and its numerous amendments unambiguously demonstrates that Congress differentiated duties ste...

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 pollutant emissions created during the manufacturing of brick and structural clay products. EPA filed a motio...

A Pennsylvania appellate court enjoined for 120 days the effective date of a new state law, Act 13, that authorizes municipalities to regulate the location of oil and gas operations but not the manner in which they are operated. The court reasoned that municipalities must have an adequate opport...