A district court granted summary judgment in EPA's favor against an engine maker for introducing on-highway engines into commerce without certification, in violation of the CAA. The Act requires that a manufacturer of on-highway engines apply for and obtain a Certificate of Conformity for those engi...

The Fourth Circuit affirmed a district court ruling that upheld a Virginia uranium mining ban on non-federal lands. In the early 1980s, a uranium deposit was discovered in Pittsylvania County, Virginia, on land owned by a mineral company. The Virginia Assembly requested that the state Coal and Energ...

A district court held that an energy company violated the CAA when it undertook major modifications at its power plant without getting the proper permits and installing the best available pollution control technology. The energy company operated a plant that included two grandfathered coal-fired ele...

The Fourth Circuit held that a district court committed no reversible error in a case where an energy company chairman was convicted of conspiring to violate federal mine safety laws. The case involved an accident on April 5, 2010, at the Upper Big Branch coal mine in Montcoal, West Virginia, which ...

The Sixth Circuit held that the CAA does not categorically prevent EPA from challenging preconstruction projections of whether and to what extent emissions will increase following new source construction. In March 2013, the appellate court reversed and remanded a district court ruling in favor of an...