(a) Except as otherwise provided in this section, upon a first conviction, an offense is punishable as a Class D traffic violation.
(b) Upon a second conviction within one year after the first conviction, an offense is punishable as a Class C traffic violation.
(c) Upon a third or subsequent conviction within one year after the first conviction, an offense is punishable as a Class B traffic violation.
(2) Any offense that is described in ORS 818.060 or 818.090 and that is not punishable under subsection (1) of this section, is punishable as a Class D traffic violation. [1983 c.338 §531; 1985 c.393 §34; 1987 c.897 §3; 1995 c.383 §121; 2007 c.664 §3]