In June 2006, as a result of the Mid-Atlantic United States flood of 2006, record-setting rainfall of 12 inches fell on Washington, D.C. The basement of the Old Post Office Building flooded, as did the William Jefferson Clinton Federal Building (headquarters of the Bureau of Alcohol, Tobacco, Firearms and Explosives), the Herbert C. Hoover Building (headquarters of the United States Department of Commerce), the Internal Revenue Service Building, the National Archives Building, and the Robert F. Kennedy Department of Justice Building.