Tex. Transp. Code § 391.065
(c) The commission may not adopt a rule under this chapter that restricts competitive bidding or advertising by the holder of a license issued under this chapter other than a rule to prohibit false, misleading, or deceptive practices. The limitation provided by this section applies only to rules relating to the occupation of erecting or maintaining commercial signs and does not affect the commission's power to regulate the orderly and effective display of commercial signs under this chapter. A rule to prohibit false, misleading, or deceptive practices may not:
(1) restrict the use of:
Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.
Amended by Acts 1997, 75th Leg., ch. 1171, Sec. 2.01, eff. Sept. 1, 1997.
Acts 2011, 82nd Leg., R.S., Ch. 1345 (S.B. 1420), Sec. 43, eff. September 1, 2011.
Acts 2017, 85th Leg., R.S., Ch. 964 (S.B. 2006), Sec. 17, eff. June 15, 2017.