ORS 814.240: Motorcycle or moped unlawful passing; penalty.

(1) A motorcycle operator or moped operator commits the offense of motorcycle or moped unlawful passing in a lane with a vehicle if the operator does any of the following: (a) Overtakes and passes in the same lane occupied by the vehicle the operator is overtaking, unless the vehicle being passed is a motorcycle or a moped. (b) Operates a moped or motorcycle between lanes of traffic or between adjacent lines or rows of vehicles. (2) This section does not apply to a police officer in the performance of official duties. (3) The offense described in this section, motorcycle or moped unlawful passing in a lane with a vehicle, is a Class B traffic violation. [1983 c.338 §689]