Tex. Business & Commerce Code § 304.051

(a) The commission shall provide for the operation of a database to compile a list of names, zip codes, and telephone numbers of consumers in this state who object to receiving telemarketing calls or other unsolicited telephone calls.

(b) The Texas no-call list is a combined list consisting of the name and telephone numbers of:

(1) each consumer in this state who has requested to be on that list; and

(2) each person in the portion of the national do-not-call registry maintained by the United States government that relates to this state.

(c) The commission shall:

(1) make available an Internet website at which a person may request that a telephone number be placed on the Texas no-call list; and

(2) provide a toll-free telephone number and mailing address that a person may call or write to obtain a copy of a form to request placement of a telephone number on the Texas no-call list.

(d) The Texas no-call list shall be updated and published on January 1, April 1, July 1, and October 1 of each year.

(e) The commission may contract with a private vendor to maintain the Texas no-call list if the vendor has maintained a no-call list database containing the names and telephone numbers of consumers who have previously requested to be added to a no-call list. A contract under this subsection must require the vendor to publish the Texas portion of the national no-call list in an electronic format for any telemarketer who agrees to use the Texas no-call list only to update the telemarketer's no-call list to include those persons with whom the telemarketer does not have an established business relationship.