Definitions.

As used in the Aircraft Registration Act: A. "division" means the aviation division of the state highway and transportation department; B. "director" means the executive head of the division; C. "maximum gross weight" means the manufacturer's gross weight according to the operating limitations placard of the aircraft, furnished by the federal aviation administration; and D. "specialized use" means use for commercial operations other than passenger carriage, including cargo hauling, crop dusting or spraying and forest fire-fighting use.