Subpart A, Chapter 38, Article III - Junked Vehicles
The term "junked vehicle" means any motor vehicle as defined in Texas Transportation Code ch. 683:
a. that is self-propelled; and
b. displays an expired license plate or invalid motor vehicle inspection certificate or does not display a license plate or motor vehicle inspection certificate; and
c. that is: 1) wrecked, dismantled, partially dismantled, or discarded, or 2) inoperable and has remained inoperable for more than 72 consecutive hours, if the vehicle is on public property; or 30 consecutive days, if the vehicle is on private property.