Winston & Strawn LLP
Stephanie B. Sebor
July 11, 2019
On July 8, 2019, the U.S. Environmental Protection Agency (EPA) published a notice in the Federal Register finalizing three discrete rulemaking actions. First, EPA repealed the Clean Power Plan (CPP) promulgated by the Obama Administration on the grounds that the CPP exceeded EPA’s rulemaking authority. Second, EPA finalized the American Clean Energy (ACE) rule, which established emission guidelines for greenhouse gas emissions from existing coal-fired electric utility generating units (EGUs). Third, EPA finalized regulations for state plans implementing emission guidelines under Clean Air Act (CAA) section 111(d). Notably, the agency did not finalize proposed changes to the CAA’s new source review regulations. It intends instead to finalize those revisions later as part of a separate rulemaking.