Indiana Administrative Code
Title 575 - STATE SCHOOL BUS COMMITTEE
Article 1 - MINIMUM SPECIFICATIONS FOR SCHOOL BUSES
Rule 9 - Type A, Type B, Type C, and Type D School Buses
Section 9-52 - Lamps and signals; strobe

(a) A white strobe light meeting SAE standards may be installed.

(b) A strobe light must be mounted on top of the center of the bus, between the rear wheels and the rear of the bus.

(c) A strobe light must be controlled by a switch that is independent of the ignition system.

(d) The candlepower must be at least eight hundred (800) on a horizontal plane and at least twenty percent (20%) of horizontal light measured at plus or minus seven and one-half (7 1/2) degrees at the vertical plane. The intensity of light visible to the human eye must be measured in accordance with the Blondell-Rae equation for intensity.