Tex. Gov't Code § 1201.067
(a) If the duty to convert or reconvert a public security or interest coupon or to transfer or exchange a public security is imposed on a corporate trustee under a trust agreement or indenture securing the public security or on a paying agent for the public security, the attorney general is not required to approve and the comptroller is not required to register:
Added by Acts 1999, 76th Leg., ch. 227, Sec. 1, eff. Sept. 1, 1999.