Tex. Civ. Prac. & Rem. Code § 41.003
(a) Except as provided by Subsection (c), exemplary damages may be awarded only if the claimant proves by clear and convincing evidence that the harm with respect to which the claimant seeks recovery of exemplary damages results from:
(e) In all cases where the issue of exemplary damages is submitted to the jury, the following instruction shall be included in the charge of the court:
"You are instructed that, in order for you to find exemplary damages, your answer to the question regarding the amount of such damages must be unanimous."
Added by Acts 1987, 70th Leg., 1st C.S., ch. 2, Sec. 2.12, eff. Sept. 2, 1987.
Amended by Acts 1995, 74th Leg., ch. 19, Sec. 1, eff. Sept. 1, 1995;
Acts 2003, 78th Leg., ch. 204, Sec. 13.04, eff. Sept. 1, 2003.