This SAE Standard provides test procedures, performance requirements, and guidelines for center high mounted stop lamps (CHMSL) for use on vehicles less than 2032 mm in overall width.
SAE J1957-2011 Referenced Document
SAE J575-2010 Test Methods and Equipment for Lighting Devices for Use on Vehicles Less Than 2032 mm in Overall Width
SAE J576-2010 Plastic Material or Materials for Use in Optical Parts Such as Lenses and Reflex Reflectors of Motor Vehicle Lighting Devices