In a win for environmental groups, the US Court of Appeals for the District of Columbia vacated USEPA’s  “Deferral Rule,” which had temporarily exempted some biomass sources from Prevention of Significant Deterioration (PSD) and Title V permitting requirements.  See Center for Biological Diversity, et al. v. EPA, No. 11-1101 (July 12, 2013). The ruling comes a year … Continue Reading