Commercial vehicle restrictions.

Except as otherwise provided in this chapter, the following vehicles are exempt from the purchase requirements contained in this chapter: Any vehicle more than 26,000 pounds GVWR; Emergency or law enforcement vehicles; Nonroad vehicles, including farm and construction vehicles; Vehicles in fleets operating in the covered area with fewer than 10 vehicles; Vehicles in a covered fleet not capable of being centrally fueled; Vehicles which are garaged under normal operations at a personal residence; Vehicles leased or rented to the general public; New car demonstration vehicles; and Vehicles used for product demonstrations and tests. The fact that one or more vehicles in a fleet is not centrally fueled does not exempt an entire fleet from the purchase requirements contained in this chapter.