(a) Every motor vehicle, except as provided in subsection (b) of this section, having a width at any part in excess of 80 inches, when in use or at rest on a highway, during the period from 30 minutes after sunset to 30 minutes before sunrise, shall display on the left side of the vehicle at least one lamp, to be known as a clearance lamp, displaying an amber light visible under normal atmospheric conditions 500 feet ahead of the vehicle, and displaying a red light visible, under like conditions, 500 feet to the rear of the vehicle, to mark as closely as possible the extreme height and width of the vehicle.

(b) All motor vehicles of the pleasure car type having a width at any part in excess of 82 inches shall be subject to the provisions of subsection (a) of this section. (Amended 1991, No. 165 (Adj. Sess.), § 4.)