2017 ORS 820.370¹
Ambulance or emergency vehicle sirens

(1) Subject to any other law or rule pursuant thereto relating to the noise of a vehicle, the Department of Transportation may prescribe required sirens or other audible signals for ambulances and emergency vehicles. The requirements established under this section may include, but are not limited to, numbers required, placement, audibility and inside indicators.

(2) Enforcement of the requirements established under this section is provided under ORS 820.380 (Illegal ambulance or emergency vehicle sirens). [1983 c.338 §764; 1985 c.16 §365; 1985 c.79 §2; 1989 c.782 §39]

1 Legislative Counsel Committee, CHAPTER 820—Special Provisions for Certain Vehicles, https://­www.­oregonlegislature.­gov/­bills_laws/­ors/­ors820.­html (2017) (last ac­cessed Mar. 30, 2018).
2 OregonLaws.org contains the con­tents of Volume 21 of the ORS, inserted along­side the per­tin­ent statutes. See the preface to the ORS An­no­ta­tions for more information.
3 OregonLaws.org assembles these lists by analyzing references between Sections. Each listed item refers back to the current Section in its own text. The result reveals relationships in the code that may not have otherwise been apparent.