Tex. Health & Safety Code § 534.1075
(b) The rules must:
(3) establish procedures necessary to administer this section, including procedures for:
(d) The service and performance standards established by the executive commissioner under Subsection (c) must:
(3) permit a health professional with a valid Texas practitioner's license to provide care that is consistent with the professional's training and license without requiring additional training unless the executive commissioner determines that additional training is necessary.
Acts 2015, 84th Leg., R.S., Ch. 1 (S.B. 219), Sec. 3.1336, eff. April 2, 2015.