The Correctional Institutions Division (CID) is the division of the Texas Department of Criminal Justice with operational responsibility for providing safe and appropriate confinement, supervision, and rehabilitation of Texas adult felony offenders. The CID operates a variety of secure correctional facilities including prisons, pre-release facilities, psychiatric facilities, medical facilities, substance abuse felony punishment facilities, state jails, transfer facilities, and intermediate sanction facilities.
37 Tex. Admin. Code § 152.1