On Friday, the D.C. Circuit reinstated the affirmative defense for emergency situations resulting in exceedances of emission limitations in Clean Air Act Title V operating permits. That defense, available in the Title V...more
On February 10, 2023, the Sixth Circuit issued an opinion in Sierra Club, et al. v. U.S. EPA, et al., (Case No. 21-3057). The case involved a petition for review filed by the Sierra Club, the Ohio Environmental Council, and...more
Major sources of air pollution must obtain a Clean Air Act Title V permit under their state’s EPA- approved implementation plan. Permits, of course, can be challenged. By petition to the EPA Administrator, the Sierra Club...more
A 2015 EPA rulemaking required 36 states to revise their State Implementation Plans (“SIPs”) to eliminate provisions exempting air emission exceedances during periods of startup, shutdown, or malfunction (the “SSM SIP Call...more