Tex. Transp. Code § 203.002
To promote public safety, facilitate the movement of traffic, preserve the public's financial investment in highways, promote the national defense, and accomplish the purposes of this chapter, the commission may:
Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.
Acts 2009, 81st Leg., R.S., Ch. 87 (S.B. 1969), Sec. 23.001, eff. September 1, 2009.