306C.1  Definitions.
  For the purposes of this division unless the context otherwise requires:
  1.  “Department” means the state department of transportation.
  2.  “Interstate highway” includes “interstate road” and “interstate system” and means any highway of the national highway system at any time officially designated as a part of the national system of interstate and defense highways by the department and approved by the appropriate authority of the federal government.
  3.  “Junk” means old or scrap copper, brass, rope, rags, batteries, paper, trash, rubber debris, waste, or junked, dismantled, or wrecked automobiles, or parts of automobiles, or iron, steel, or other old or scrap ferrous or nonferrous material.
  4.  “Junkyard” means an establishment or place of business which is maintained, operated, or used primarily for storing, keeping, buying, or selling junk; and the term includes garbage dumps, sanitary fills, and automobile graveyards.
  5.  “National highway system” means the network designated by the federal highway administration in consultation with the state department of transportation, which consists of interconnected urban and rural principal arterials and highways that serve major population centers, ports, airports, public transportation facilities, other intermodal transportation facilities, and other major travel destinations; meet national defense requirements; and serve interstate and interregional travel.
[C73, 75, 77, 79, 81, §306C.1]
2003 Acts, ch 8, §1; 2014 Acts, ch 1123, §2, 3

Subsection 2 amended
NEW subsection 5