A fifth wheel equipped truck regulated under IVC Section 1-120.5 is any single unit motor vehicle that has the capability, because of design, to carry a load other than a part of the weight of an attached trailer. The trailer's load cannot be considered a truck-tractor even though it may:
Ill. Admin. Code tit. 92, § 1030.40
Amended at 33 Ill. Reg. 2391, effective January 21, 2009