Tex. Occ. Code § 401.404
(a) A licensed audiologist may not sell a hearing instrument to a person under 18 years of age unless the person or the parent or guardian of the person presents to the audiologist a written statement signed by a licensed physician stating that:
Acts 1999, 76th Leg., ch. 388, Sec. 1, eff. Sept. 1, 1999.
Acts 2025, 89th Leg., R.S., Ch. 783 (S.B. 905), Sec. 4, eff. September 1, 2025.