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This document provides design guidelines, test procedure references, and performance requirements for red and yellow overhead warning devices on school bus vehicles which are used to alert traffic to stop when passengers are loading and unloading.

This document provides design guidelines, test procedure references, and performance requirements for stop arm lamp devices on school bus vehicles which are used to alert traffic to stop when passengers are loading and unloading

This technical report provides test procedures, dimensional data, design specifications, and performance requirements for red and yellow school bus warning lamps.

This engineering design specification provides design parameters and general requirements for School Bus Stop Arms equipped with alternately flashing lights. The stop arm is intended as an optional device which may be used in addition to, but not as a substitute for, school bus signal lamps covered by SAE J887(July, 1964). Decision for adoption of the recommendations presented in the Appendix is left to governmental units or other bodies who adopt this practice.

This SAE Technical Report provides test procedures, requirements, and guidelines for school bus stop arms.

This SAE Recommended Practice provides test procedures, requirements, and guidelines for the system of optical warning devices used on emergency vehicles.