2007 ORS § 801.260¹
"Emergency vehicle" means a vehicle that is equipped with lights and sirens as required under ORS 820.350 (Ambulance warning lights) and 820.370 (Ambulance or emergency vehicle sirens) and that is any of the following:
(1) Operated by public police, fire or airport security agencies.
(2) Designated as an emergency vehicle by a federal agency.
(3) Designated as an emergency vehicle by the Director of Transportation. [1983 c.338 §43; 1993 c.751 §5]