A type A, B, C, or D school bus must be equipped with at least one stop-signal arm, prewarning flashing amber signals, and flashing red signals.
In addition to equipment required under subdivision 1, and notwithstanding section 169.64, a school bus may be equipped with a driver-activated, exterior student-control, warning system. The driver shall activate this system when the use of the stop-signal arm and flashing red signals is required under section 169.443, subdivision 1.
A school bus or a Head Start bus may be equipped with a flashing strobe lamp under section 169.64, subdivision 8.
Official Publication of the State of Minnesota
Revisor of Statutes