Oregon Revised Statutes Oregon Vehicle Code § 811.430

(1) A person commits the offense of driving on a highway divider if the person drives a vehicle over, across or within a dividing space, barrier or section that is an intervening space, physical barrier or clearly indicated dividing section so constructed as to impede vehicular traffic and that divides a highway into two or more roadways.

(2) For purposes of this section, a “dividing space” includes pavement markings of solid double yellow lines with yellow cross-hatching between the double yellow lines.

(3) This section does not apply when the movement of a vehicle that is otherwise prohibited by this section is made:

(4) The offense described in this section, driving on a highway divider, is a Class B traffic violation.