For purposes of RCW 46.20.291(3), whenever the records of the department show that a person has committed at least four traffic offenses within a twelve month period, or at least five traffic offenses within a twenty-four month period, this shall be considered prima facie evidence of violations of such frequency as to indicate a disrespect for traffic laws or a disregard for the safety of other persons on the highways. A traffic offense committed under the provisions of chapter 46.37 RCW by a commercial driver with respect to equipment required on commercial motor vehicles shall not be considered for the purposes of this section.
