An authorized emergency vehicle may be equipped with a siren, whistle, or bell capable of emitting sound audible under normal conditions from a distance of not less than five hundred (500) feet and of a type approved by the state police department. The siren may not be used except when the vehicle is operated as follows:
IC 9-19-14-3
Pre-1991 Recodification Citation: 9-8-6-35(d).