Constitution of the State of Texas 1876 Art. 5, § 32. Challenges to the constitutionality of statute;  notice to Attorney General

(1) require a court in which a party to litigation files a petition, motion, or other pleading challenging the constitutionality of a statute of this state to provide notice to the attorney general of the challenge if the party raising the challenge notifies the court that the party is challenging the constitutionality of the statute;  and

(2) prescribe a reasonable period, which may not exceed 45 days, after the provision of that notice during which the court may not enter a judgment holding the statute unconstitutional.