Work Truck Law and Legal Definition
According to 49 USCS § 32901 [Title 49. Transportation; Subtitle VI. Motor Vehicle and Driver Programs; Part C. Information, Standards, and Requirements; Chapter 329. Automobile Fuel Economy], the term "work truck" means "a vehicle that--
(A) is rated at between 8,500 and 10,000 pounds gross vehicle weight; and
(B) is not a medium-duty passenger vehicle."