ORS 498.154: Notice adequate to charge defendant; delivery or posting.

(1) In all prosecutions against the owner of a motor-propelled vehicle under ORS 498.153, it shall be sufficient for a police officer to charge the defendant by an unsworn written notice if the notice clearly states:

      (a) The date, place and nature of the charge.

      (b) The time and place for defendant’s appearance in court.

      (c) The name of the issuing officer.

      (d) The license number of the vehicle.

      (2) The notice provided for in subsection (1) of this section shall either be delivered to the defendant or placed in a conspicuous place upon the vehicle involved in the violation. A duplicate original of the notice shall serve as the complaint in the case when it is filed with the court. The issuing officer need not have observed the act of parking, but need only have observed that the vehicle appeared to be parked in violation of restrictions established and posted under ORS 498.152.