ARS § 28-930

28-930 - School bus lighting equipment; standards and specifications 28-930 . School bus lighting equipment; standards and specifications A. The director may adopt standards and specifications applicable to lighting equipment on and special warning devices to be carried by school buses consistent with and supplemental to this article. The standards and specifications may designate and permit the use of alternately flashing warning signal lights on school buses for the purpose of indicating when children are boarding or alighting from a school bus. The standards and specifications shall correlate with and, as far as possible, conform to the current specifications as approved by the society of automotive engineers. B. A person shall operate an alternately flashing warning signal light on any school bus when the school bus is a minimum of one hundred feet from a stop or is stopped on a highway for the purpose of permitting school children to board or alight from it. C. A school bus may be equipped with alternately flashing red strobe lamps on the octagonal signal manually operated by the school bus operator pursuant to section 28-857, subsection D.