On March 5, the U.S. Court of Appeals for the D.C. Circuit denied a challenge to a more than decade-old EPA rule related to the records that source owners must keep in order to support claims that certain of their activities...more
Seyfarth Synopsis: Consistent with guidance issued by the Environmental Protection Agency (EPA) in March 2018, the Agency has now proposed to codify changes to the New Source Review (NSR) applicability regulations to clarify...more
On March 13, 2018, EPA issued another new NSR interpretation. This one allows a source to take into account emissions decreases when performing the first step in determining NSR applicability, effectively rewriting the long...more
Given EPA’s recent run of defeats in its NSR enforcement initiative, it’s probably breathing a sigh of relief over last week’s decision in United States v. Ameren Missouri, regarding Ameren’s Rush Island coal-fired power...more