(1) A vehicle subject to ORS 825.100 or a vehicle under regulation of the United States Department of Transportation.
(2) A vehicle, commonly known as a private passenger car or private passenger van, that is used by the owner of the vehicle or a relative of the owner of the vehicle for personal transportation of students to or from school activities and is not used for compensation except for the sharing of expenses in a ridesharing arrangement or reimbursement of mileage.
(3) A vehicle that is exempted from regulation as a school activity vehicle under ORS 820.150.
(4) A transit bus, as defined in ORS 811.167. [1985 c.420 §3; 1995 c.733 §80; 2015 c.138 §16; 2018 c.62 §4]