1 Tex. Admin. Code § 202.24
(a) Business Continuity Planning covers all business functions of a state agency and it is a business management responsibility. State agencies should maintain a written Business Continuity Plan so that the effects of a disaster will be minimized, and the state agency will be able to either maintain or quickly resume mission-critical functions. The state agency head or his or her designated representative(s) shall approve the Plan. The Plan shall be distributed to key personnel and a copy stored offsite. Elements of the Plan for information resources shall include:
(1) Business Impact Analysis to systematically assess the potential impacts of a loss of business functionality due to an interruption of computing and/or infrastructure support services resulting from various events or incidents. The analysis shall address maximum tolerable downtime for time-critical support services and resources including, but not limited to:
(5) Disaster Recovery Plan--Each state agency shall maintain a written disaster recovery plan for information resources. Information learned from tests conducted since the plan was last updated will be used in updating the disaster recovery plan. The disaster recovery plan will:
Source Note:The provisions of this §202.24 adopted to be effective November 28, 2004, 29 TexReg 10703.