Tex. Occ. Code § 203.356
(a) A physician, a registered nurse, or other person who, on the order of a physician, instructs a midwife in the approved techniques for collecting blood specimens to be used for newborn screening tests is immune from liability arising out of the failure or refusal of the midwife to:
Acts 1999, 76th Leg., ch. 388, Sec. 1, eff. Sept. 1, 1999.
Acts 2005, 79th Leg., Ch. 1240 (H.B. 1535), Sec. 43, eff. September 1, 2005.
Acts 2015, 84th Leg., R.S., Ch. 838 (S.B. 202), Sec. 1.031, eff. September 1, 2015.