ORS 811.168: Unlawful fender height modifications; penalty.

(1) A person commits the offense of unlawful fender height modifications if the person operates a motor vehicle on a highway and the motor vehicle has been modified by any means so as to cause the height of the front fender to be four or more inches greater than the height of the rear fender, as measured vertically from the ground through the centerline of the wheel to the bottom of the fender.

      (2) The offense described in this section does not apply when a motor vehicle is carrying a load that causes the height of the front fender to be four or more inches greater than the height of the rear fender.

      (3) The offense described in this section, unlawful fender height modifications, is a Class C traffic violation unless commission of the offense contributes to an accident. If commission of the offense contributes to an accident, the offense is a Class A traffic violation.