The Arkansas Department of Correction (ADC) operates its headquarters in Pine Bluff. The ADC headquarters moved to the Pine Bluff Complex in 1979. The administrative Annex East is on Harding Avenue in Pine Bluff, south of city hall. The Diagnostic Unit, the Pine Bluff Unit, and the Randall L. Williams Correctional Facility are in the "Pine Bluff Complex" in Pine Bluff. The headquarters of the Arkansas Correctional School system are within the Pine Bluff Complex.