On August 28, the U.S. Court of Appeals for the Ninth Circuit decided the case of Sierra Club, et al., v. State of North Dakota, et al., a Clean Air Act (CAA) Citizen lawsuit. The Ninth Circuit affirmed, in a 2-1 ruling, the District Court’s approval of a Consent Decree between the Environmental Protection Agency (EPA) and Sierra Club that established a schedule by which EPA would promulgate “designations” determining which geographic locations met the National Air Quality Standards (NAAQS) for 1-Hour Sulfur Dioxide (SO2) under the CAA.
These NAAQS must, by law, be revised periodically. When EPA fails to make these designations in a timely manner and fails to adhere to the statutory deadlines, EPA was subject to Citizen Suits under the law, as happened here, and several states intervened in this litigation. Continue Reading ›