ORS 821.190: Unlawful operation of snowmobile or all-terrain vehicle on highway or railroad; civil liability; penalty.

(1) A person commits the offense of unlawful operation of an off-road vehicle on a highway or railroad if the person operates a vehicle described in subsection (2) of this section in any of the following described areas:

      (a) On or across the paved portion, the shoulder, inside bank or slope of any highway, on or across the median of any divided highway or on or across any portion of a highway right of way under construction.

      (b) On or across a railroad right of way.

      (2) This section applies to:

      (a) Snowmobiles.

      (b) Class I all-terrain vehicles.

      (c) Class II all-terrain vehicles that are not properly equipped for operation on a highway.

      (d) Class III all-terrain vehicles.

      (e) Class IV all-terrain vehicles.

      (3) Exemptions from this section are established under ORS 821.055 and 821.200.

      (4) In addition to penalties provided by this section, the operator or owner of a snowmobile or Class I, Class II, Class III or Class IV all-terrain vehicle may be liable as provided under ORS 821.310.

      (5) The offense described in this section, unlawful operation of an off-road vehicle on a highway or railroad, is a Class B traffic violation.