An Executive Summary of the Clean Power Plan Court Briefings includes "Twenty-eight states and over 120 companies and organizations are challenging the Environmental Protection Agency’s (EPA’s) Clean Power Plan regulations. On February 9, 2016, the United States Supreme Court issued an unprecedented stay of the rule pending review by the U.S. Court of Appeals for the District of Columbia. Arguments were scheduled in front of a three-judge panel June 2-3, 2016. However, in an unexpected move, the Court announced that the battle over the Clean Power Plan will skip customary review by the three-judge panel and instead go before the full court in September."