Chapter 4501-9 Rural Mail Delivery Vehicles-Flashing Lights
These requirements apply to rural mail delivery vehicles displaying flashing lights which are not owned or leased by the U.S. postal service but authorized by the U.S. postal service to be used for delivery of the U.S. mail by designated carriers using vehicles not originally designed for use as mail delivery vehicles.
Motor vehicles used for rural mail delivery which display flashing lights, except those owned or leased by the United States postal service, shall comply with the following lighting specifications:
(A) The lighting assembly may consist of at least one and not more than three roof-mounted, flashing, rotating, oscillating light(s) or strobe-type light(s).
(B) Each light shall be amber in color when illuminated. Each light shall be of not less than twenty-one candle power, and shall be visible from a distance of at least five hundred feet to the front and rear of the motor vehicle. Side visibility is also permitted.
(C) All flashing lights required by this chapter are to be visible from the front and rear of the vehicle.
If more than one light is used, the lights shall not flash alternately from one light to the other, thereby confusing motorists with respect to emergency lights, railroad crossing signals, etc.
The complete installation must be firmly attached to the vehicle and electrically controlled so that lights will be illuminated from the initial point of mail delivery and will be turned off immediately after completion of the mail route.
Any type of auxiliary signal, used under the provisions of this chapter shall not be in operation at any time except when in the actual performance of delivery of mail to rural route residents.
Any violations of these standards may be reported to the U.S. postal service. The specifications for lighting set forth in this chapter are in addition to requirements for compliance with the traffic laws relative to the operation and licensing of a motor vehicle.