RCW 46.72.100: Unprofessional conduct—Bond/insurance policy—Penalty.

(1) In addition to the unprofessional conduct specified in RCW 18.235.130 , the director may take disciplinary action if he or she has good reason to believe that one of the following is true of the operator or the applicant for a permit or certificate: (a) He or she is guilty of committing two or more offenses for which mandatory revocation of driver's license is provided by law; (b) he or she has been convicted of vehicular homicide or vehicular assault; (c) he or she is intemperate or addicted to the use of narcotics. (2) Any for hire operator who operates a for hire vehicle without first having filed a bond or insurance policy and having received a for hire permit and a for hire certificate as required by this chapter is guilty of a gross misdemeanor, and upon conviction shall be punished by imprisonment in jail for a period not exceeding ninety days or a fine of not exceeding five hundred dollars, or both fine and imprisonment.