The Environmental Protection Agency (EPA) is promulgating revisions to its Regional Consistency regulations to more clearly address the implications of adverse federal court decisions that result from challenges to locally or regionally applicable actions. Specifically, the EPA is introducing a narrow procedural exception under which an EPA Regional office no longer needs to seek Headquarters concurrence to diverge from national policy in geographic areas covered by such an adverse court decision. The revisions will help to foster overall fairness and predictability regarding the scope and impact of judicial decisions under the Clean Air Act (CAA or Act).