Sec. 1. (a) Except as provided in subsection (b) and as otherwise provided in this chapter, this article does not apply to the following with respect to equipment on vehicles:
(1) Implements of agriculture designed to be operated primarily in a farm field or on farm premises.
(2) Road machinery.
(3) Road rollers.
(4) Farm tractors.
(5) Vehicle chassis that:
(A) are a part of a vehicle manufacturer's work in process; and
(B) are driven under this subdivision only for a distance of less than one (1) mile.
(6) Golf carts and off-road vehicles when operated in accordance with an ordinance adopted under IC 9-21-1-3(a)(14) or IC 9-21-1-3.3(a).
(b) A farm type dry or liquid fertilizer tank trailer or spreader that is drawn or towed on a highway by a motor vehicle other than a farm tractor at a speed greater than thirty (30) miles per hour is considered a trailer for equipment requirement purposes and all equipment requirements concerning trailers apply.