Driver-any individual who, in the course of employment, drives a motor vehicle at any time.
Gross Vehicle Weight -the weight of the vehicle chassis, including lubricants, water, and full tank or tanks of fuel, plus the weight of the cab or drivers compartment, body, special chassis and body equipment, and payload.
Motor Vehicle-any automobile, truck, truck-trailer combination, trailer, semi-trailers, motorcycle, or similar vehicle which is propelled or drawn by mechanical or electrical power, and designed for use as means of transportation, but does not mean any vehicle operated exclusively on rails.
La. Admin. Code tit. 40, § VII-505