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.
This document was revised to incorporate changes to a new photometry format. There are no photometry requirements changes to this document. Paragraph 5.3 is added. Subparagraphs 6.1.5a and 6.1.5b become redundant with respect to Table 1 and are deleted.