Tex. Civ. Prac. & Rem. Code § 140A.106

The attorney general may file with the clerk of the district court in which a proceeding is brought under this chapter a certificate stating that the case is of special public importance. The clerk must immediately furnish a copy of the certificate to the administrative judge of the district court of the county in which the proceeding is pending. On receiving the copy of the certificate, the administrative judge shall immediately designate a judge to hear and determine the proceeding. The designated judge shall promptly assign the proceeding for hearing, participate in hearings, make determinations, and cause the action to be expedited.