Okla. Stat. tit. 47, § 47-12-218: Emergency vehicles - Flashing lights

A. Every authorized emergency vehicle shall, in addition to any

other equipment and distinctive markings required by this title, be

equipped with flashing red or blue lights or a combination of

flashing red and blue lights. The lights shall be visible at five

hundred (500) feet in normal sunlight.

B. A law enforcement vehicle when used as an authorized

emergency vehicle may but need not be equipped with alternately-

flashing red or blue lights specified herein. An unmarked vehicle

used as a law enforcement vehicle for routine traffic enforcement

shall be equipped with the following combination of lights:

1. Three flashing red, blue, or a combination of red and blue

lights emitting the flashing lights to the front of the vehicle;

2. Two flashing white lights emitting the flashing white lights

to the front of the vehicle;

3. Flashing red, blue, white or any combination of red, blue or

white lights placed at and emitting the flashing lights from the

four corners of the vehicle so that they are visible for three

hundred sixty (360) degrees; and

4. One flashing red, blue, amber, or any combination of red,

blue, or amber lights emitting the flashing light to the rear of the

vehicle.

C. The use of the signal equipment described herein shall

impose upon drivers of other vehicles the obligation to yield right-

of-way and stop for authorized emergency vehicles, as prescribed in

Section 11-405 of this title.