Indiana law is not specific in identifying the vehicles that can use the alternative flashing headlamp system (e.g., ambulance, police, fire, school bus). School bus equipment is prescribed by the State School Bus Committee that creates administrative rule for school bus construction and equipment features. To enable school buses to use the alternative flashing headlamp system, the State School Bus Committee set out specifications and notified school bus users of the option. It has been popular thoughout the state.