Tex. Health & Safety Code § 534.108
(c) In conjunction with local intellectual and developmental disability authorities, the executive commissioner shall review the standards biennially to determine if each standard is necessary to ensure the quality of care.
Acts 2015, 84th Leg., R.S., Ch. 1 (S.B. 219), Sec. 3.1336, eff. April 2, 2015.