Section 814.290 - Exemptions from motorcycle helmet requirements.
OR Rev Stat § 814.290 (2019) (N/A)
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(1) Within an enclosed cab.
(2) Operating or riding a vehicle designed to travel with three wheels in contact with the ground at speeds of less than 15 miles per hour. [1983 c.338 §693; 1987 c.910 §6; 1995 c.492 §7]