ORS 810.214¹
Signs prohibiting unmuffled engine brakes

(1) The Oregon Transportation Commission shall adopt uniform standards for posting signs prohibiting the use of unmuffled engine brakes as described in ORS 811.492 (Engine braking).

(2) The commission is authorized to provide a uniform system of posting signs within the boundaries of the state. Any sign posted shall inform the driver that the use of unmuffled engine braking is prohibited and shall give the dollar amount of the maximum fine provided for violation of ORS 811.492 (Engine braking).

(3) All signs placed shall conform to specifications approved by the commission. The commission may use signs that show internationally recognized and approved symbols. [1993 c.314 §11; 1999 c.1051 §228]

1 Legislative Counsel Committee, CHAPTER 810—Road Authorities; Courts; Police; Other Enforcement Officials, https://­www.­oregonlegislature.­gov/­bills_laws/­ors/­ors810.­html (2019) (last ac­cessed May 16, 2020).
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. Currency Information