Oregon Revised Statutes Oregon Vehicle Code § 811.320

(1) A person commits the offense of failure to drive to the right on a divided highway if the person is operating a vehicle upon a highway divided into two or more roadways by means of an intervening space or by a physical barrier or clearly indicated dividing section so constructed as to impede vehicular traffic and the person does not drive only upon the right-hand roadway.

(2) This section does not apply if a person is operating a vehicle in accordance with traffic control devices or the directions of a police officer that differ from the requirements of this section.

(3) The offense described in this section, failure to drive to the right on a divided highway, is a Class B traffic violation.