Oregon Revised Statutes Oregon Vehicle Code § 816.260

(1) Bus safety lights shall include at least two of each color of light on the front of the vehicle and at least two of each color of light on the rear of the vehicle.

(2) Bus safety lights shall include red and amber lights.

(3) Each bus safety light shall alternately flash with the bus safety lights of the same color that are placed on the same end of the vehicle displaying the lights.