Description / Abstract:
This SAE Recommended Practice provides test procedures,
requirements, and guidelines for high-mounted stop lamps and
high-mounted turn signal lamps intended for use on vehicles 2032 mm
or more in overall width. This document applies to trucks, motor
coaches, van type trailers, and other vehicles with permanent
structure greater than 2800 mm high.
This document does not apply to school buses, truck tractors,
pole trailers, flat-bed trailers, pick-up truck with dual wheels
and trailer converter dollies. The purpose of the high-mounted stop
lamp(s) and high-mounted turn signal lamp(s) is to provide a signal
over intervening vehicles to the driver of following vehicles.