Sec. 621.405.  UNLOADING EXCEPTIONS.  (a)  The operator or owner of a vehicle is not required to unload any part of the vehicle's load under Section 621.403 or 621.404 if the vehicle is:
(1)  a motor vehicle loaded with timber, pulp wood, or agricultural products in their natural state being transported from the place of production to the place of marketing or first processing;  or
(2)  a vehicle crossing a highway as provided by Subchapter C, Chapter 623.
(b)  The operator of a motor vehicle may proceed to the vehicle's destination without unloading the vehicle as required by Section 621.403 or 621.404 if the vehicle is loaded with livestock.
Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.  Amended by Acts 2001, 77th Leg., ch. 941, Sec. 22, eff. Sept. 1, 2001.