Nevada State Prison (NSP) was a penitentiary located in Carson City. The prison was in continuous operation since its establishment in 1862 and was managed by the Nevada Department of Corrections. It was one of the oldest prisons still operating in the United States. The high security facility housed 219 inmates in September 2011. It was designed to hold 841 inmates and employed a staff of 211. The state of Nevada chose to close the facility for budgetary reasons. The prison closed its doors on May 18, 2012, with all inmates transferred to other institutions or released.