As used in these regulations, the following words have the meanings indicated: “Administrative unit” is an area separate from the facility's housing units, which contains certain administrative, staff and program spaces which are shared by the housing units. “Commissioner” means the Commissioner of Correction. “County” includes Baltimore City. “Facility” means a community adult rehabilitation center. “Housing unit” is a physically separate housing and program space which contains one or more housing sub-units and certain staff, program and recreational spaces and a living area which are shared by the sub-units. “Housing sub-unit” is a physically separate area which contains sleeping quarters, bathing and toilet facilities. “Secretary” means the Secretary of Public Safety and Correctional Services. “State inmate” means an inmate who is sentenced to the Division of Correction.