The U.S. Supreme Court ruled that multiple challenges to the Clean Water Rule should be heard by district courts, reversing a prior decision by the U.S. Court of Appeals for the Sixth Circuit in Ohio finding jurisdiction to review consolidated challenges in that court.
The U.S. Environmental Protection Agency and the U.S. Army Corps of Engineers jointly signed the Clean Water Rule in May, 2015.
Shortly thereafter, a federal court halted its implementation pending the resolution of the litigation.