Tex. Lab. Code § 213.009
(a) A qualified attorney who is a regular salaried employee of the commission may represent an employment security agency of another state in a proceeding in a court in this state to collect a contribution, a penalty, interest, or a court cost for which liability has been incurred by an employing unit under an unemployment compensation law or unemployment insurance law of the other state, if:
Acts 1993, 73rd Leg., ch. 269, Sec. 1, eff. Sept. 1, 1993.