https://www.oregon.gov/odot/Safety/Documents/OregonBikePedDriverRules.pdf page 25

814.420 Failure to use bicycle lane or path; exceptions;

1) Except as provided in subsections (2) and (3) of this section, a person commits the offense of failure to
use a bicycle lane or path if the person operates a bicycle on any portion of a roadway that is not a bicycle lane or bicycle path when a bicycle lane or
bicycle path is adjacent to or near the roadway.