(2) A person is not required to drive on the right side of the roadway by this section under any of the following circumstances:
(a) When overtaking and passing another vehicle proceeding in the same direction under the rules governing this movement in ORS 811.410 to 811.425 or 811.808.
(b) When preparing to turn left in an intersection, alley or private road or driveway.
(c) When an obstruction or condition exists making it necessary to drive to the left of the center of the roadway, provided that a driver doing so shall yield the right of way to all vehicles traveling in the proper direction upon the unobstructed portion of the roadway within a distance as to constitute an immediate hazard.
(d) Upon a roadway divided into three marked lanes for traffic under the rules applicable on the roadway under ORS 811.380.
(e) Upon a roadway restricted to one-way traffic.
(3) The offense described in this section, failure to drive on the right, is a Class B traffic violation. [1983 c.338 §615; 1991 c.482 §15]