A. The provisions of Section 15-514 of this code shall be applicable only if the school bus is painted yellow and bears upon the front and rear thereon a plainly visible sign containing the words "SCHOOL BUS" in letters not less than eight (8) inches in height which can be removed or covered when the vehicle is not in use as a school bus.
B. The school bus shall be equipped with four (4) red alternately flashing warning signal lights, two (2) of which shall be located high on the front and two (2) high on the rear of the vehicle. The lights shall be a minimum of four (4) inches in diameter and shall be widely separated. (Prior Code, Chapter 20)
State Law Reference: Similar provisions, 41 O.S. Section 11-307.