321E.10  Truck trailers manufactured in Iowa.
  The department or local authorities may upon application issue annual trip permits for the movement of truck trailers manufactured or assembled in this state that exceed the maximum length specified in section 321.457 and the maximum width specified in section 321.454. Movement of the truck trailers shall be solely for the purpose of delivery or transfer from the point of manufacture or assembly to another point of manufacture or assembly within the state or to a point outside the state, shall be only on roadways of twenty-four feet or more in width or on four-lane highways, shall be on the most direct route necessary for such movement, and shall display the special plates designated in section 321.57. All truck trailers under permit for such movement shall not contain freight or additional load. A vehicle or combination of two or more vehicles inclusive of front and rear bumpers, including towing units, involved in the movement of truck trailers shall not exceed an overall width of ten feet. Vehicles or combinations shall be distinctly marked on both the front and rear of the unit in a manner the director of transportation designates to indicate that the vehicles or combinations are being moved for delivery or transfer purposes only.
  Permits issued under the provisions of this section shall be in writing and shall be carried in the cabs of the vehicles for which the permits have been issued and shall be available for inspection at all times. The vehicles for which the permits have been issued shall be open to inspection by any peace officer or to any authorized agent of any permit granting authority.
[C31, 35, §5067-d7, -d8; C39, §5035.16; C46, 50, 54, 58, 62, 66, §321.467; C71, 73, 75, 77, 79, 81, §321E.10]
83 Acts, ch 116, §5; 92 Acts, ch 1100, §5