Who can and can’t use emergency vehicle lighting in Iowa is ruled by state statutes. To make buying warning lights that are appropriate for use by our Iowa customers, we have collected the definition of an emergency vehicle and links to statutes that define what colors may be used by different sectors.
Emergency Vehicles Defined by Iowa State Statute 321-1-1-6
Iowa state statute 321-1-1-6 defines an emergency vehicle as any vehicle driven by police, fire, or EMS. The statute requires that any of the vehicles mentioned above must be United States owned, or owned by a municipality, subdivision, or Department of Transportation.
Iowa Police Must Use Red/Blue Emergency Lights
Police in Iowa are obligated to use red/blue emergency lights under state statute 321-423-3(3). The blue police light must be mounted over the passenger area of the vehicle and the red part of the cop light must be mounted over the driver side of a police vehicle.
Iowa Ambulances Must Use White Flashing Lights
Iowa statue 321.423.4.2.f requires ambulances driven in Iowa to be armed with white flashing lights.
Amber Lights May be Used by Construction Vehicles and Tow Trucks in Iowa
Iowa emergency light state statute 321-423-6 allows construction vehicles and tow trucks in the state’s borders to use amber flashing lights.
Amber Lighting Required for Iowa Pilot Vehicles
An amber revolving warning light of 7" high and 7" round with a minimum of 100-candlepower and 360-degrees of rotation must be used on all pilot vehicles in the states boundaries. A smaller light may not be used unless a strobe light is used. Mobile units must use amber strobe or revolving lights on the rear of a vehicle and on the towed vehicle.
For more information about what lights may be available to you, we suggest calling your State Highway Patrol office at: 515-725-6090
*Please note that these numbers are what we are currently able to find and the numbers may have changed since this listing.