Section 13 AAC 04.247 - Color and special equipment on school buses(a) Every school bus used for pupil transportation must be painted National School Bus Chrome Yellow (National Bureau of Standards Color #1305). No other vehicle may display this color. A bus originally painted and used as a school bus which is no longer used as a school bus must be painted a color other than National School Bus Chrome Yellow before it may be driven on a highway or vehicular way or area.(b) When transporting a school child to or from a school activity, a school bus must display signs as follows:(1) the words "SCHOOL BUS" in black letters at least eight inches in height on a contrasting background, plainly visible to the front and rear; and(2) the words "UNLAWFUL TO PASS WHEN RED LIGHTS FLASH" in black letters at least four inches but not more than six inches in height on a white background on the rear of the bus.(c) A school bus with a manufacturer's rated capacity of 24 or more students must be equipped with a stop arm mounted on the left side of the vehicle. The lights on the stop arm must be automatically activated with the red flashing lights required by sec. 97(a) of this chapter. The stop arm must be at least 17 inches high at the side opposite the hinge and, when fully extended, extend 19 inches from the bus. The word "STOP" must be displayed on the stop arm in white letters on a red background, and two alternately flashing red lights must be mounted, one above the other, on the left side of the arm, which must flash and be visible to the front and rear when the arm is fully extended.(d) The signs required by (b) of this section may not be displayed nor may the stop arm required by (c) of this section be extended on a school bus during times it is being used to transport persons not under the supervision of a school.Eff. 6/28/79, Register 70This section is based in part on 13 AAC 04.150.