Oregon Revised Statutes Public Organizations for Community Service § 267.230

(1) Except as provided in ORS 824.045 and subsection (2) of this section, a transit system operated by a district, including the rates and charges made by a district and the equipment operated by a district, shall not be subject to state laws or ordinances of any political subdivision regulating public utilities or railroads, including those laws administered by the Department of Transportation.

(2) ORS 824.200 to 824.256 apply to the transit system operated by a district except for control and regulation of any crossing at which the light rail transit vehicles of a district's transit system cross a highway at separated grades or any grade crossing at which the light rail transit vehicles operate within and parallel to the right of way of a highway and where all conflicting vehicle movements are controlled by standard highway traffic devices. However, upon written request from the district and the public authority with jurisdiction over the highway at such a grade crossing, the department shall adjudicate any dispute that arises between the district and the public authority with regard to the grade crossing.