Tex. Health & Safety Code § 437.021
A person operating a mobile food unit, roadside food vendor, or temporary food service establishment in a county with a population of more than 3.3 million shall acquire written authorization from the owner of the property on which the unit, vendor, or establishment is operating. The written authorization must:
Added by Acts 2007, 80th Leg., R.S., Ch. 1402 (H.B. 3138), Sec. 2, eff. June 15, 2007.