Tag Archives: opacity

Yes, Virginia, NSR Really is a Preconstruction Permitting Program: Another NSR Enforcement Case Fails on Statute of Limitations Grounds

The trend of cases holding that the NSR provisions of the Clean Air Act constitute a one-time preconstruction review requirement got stronger earlier this month, as the decision in Sierra Club v. Oklahoma Gas and Electric Company dismissed claims by the Sierra Club related to facility modifications that occurred more than five years prior to entry of a tolling agreement between the parties.  The decision may not break any new ground,… More

Opacity Still Matters: Court of Appeals Affirms EPA’s NSPS for Particulate Matter

Last week, in Utility Air Regulatory Group v. EPA, the D.C. Circuit Court of Appeals affirmed EPA’s 2012 New Source Performance Standards for particulate matter emissions from fossil-fuel-fired steam electric generating units.  The opinion is largely a plain vanilla administrative law decision, but does provide some useful guidance on the appeal of CAA regulations.  It is also a useful reminder of the extent of deference to EPA in an ordinary case.… More