Texas Transportation Code - TRANSP § 503.071. Notice of Driving or Towing From Out of State

(a) A motor vehicle that is manufactured outside this state and is driven or towed from the place of manufacture to this state for sale in this state must have affixed to it a sticker stating that the vehicle is being driven or towed from the place it was manufactured.

(b) The sticker must be at least three inches in diameter and must be affixed to the windshield or front of the motor vehicle in plain view.

(c) The sticker must remain on the motor vehicle until the vehicle is sold by a dealer.