Or. Rev. Stat. § 821.055
Notwithstanding ORS 821.020, or any law requiring that vehicles be equipped in specified ways in order to operate on highways, a person may operate Class I, Class II, Class III and Class IV all-terrain vehicles on any highway in this state that is open to the public if:
[1995 c.775 §8; 2011 c.360 §21; 2017 c.453 §4]