ORS 816.285: Fire department warning lights.

Each of the following is authorized for fire department warning lights:

      (1) Fire department vehicle warning lights may be red or a combination of red and white.

      (2) Fire department vehicles may use an approved headlight flashing system as authorized by ORS 816.050.

      (3) Fire department vehicles may have a forward facing flashing white light for the purpose of operating a traffic signal preemption device.

      (4) Fire department vehicles may show a flashing or revolving green light when operating as the command post in emergency incidents.

      (5) Fire department emergency response vehicle lights may be any color allowed for police lights under ORS 816.250.