Or. Rev. Stat. § 814.516
The State Parks and Recreation Department may restrict or prohibit the operation of a motor assisted scooter on a bicycle lane or bicycle path in a state park except that the department may not restrict or prohibit the operation of a motor assisted scooter on a bicycle lane or bicycle path in a state park if the operator of the motor assisted scooter is disabled.
[2001 c.749 §7]