On April 13, 2010, [[Washington (state)|the state of Washington]] filed suit to prevent the closing of Yucca Mountain, since this would slow efforts to clean up [[Hanford Nuclear Reservation]]. [[South Carolina]], [[Aiken County, South Carolina|Aiken County]] (the location of Savannah River site) and others joined Washington. The [[United States Court of Appeals for the District of Columbia Circuit]] dismissed the suit in July 2011, saying the [[Nuclear Regulatory Commission]] had not ruled on the withdrawal of the license application. Washington and South Carolina filed another lawsuit on July 29.