On March 29, the American Lung Association, the Clean Air Council, the Environmental Defense Fund, the Natural Resources Defense Council, and the Sierra Club filed a petition with the Supreme Court to consider an appeals court ruling on the Environmental Protection Agency’s (EPA’s) Cross-State Air Pollution Rule. The petition questions if the opponents of the rule, which limits pollution between states, had standing and if the appeals court overstepped its judicial review power by creating methodology for implementing some of the rule.