Washington Revised Code Title 46. Motor Vehicles § 46.32.020. Rules--Supplies--Assistants--Prioritization of higher risk motor carriers

(1)(a) The chief of the Washington state patrol may adopt reasonable rules regarding types of vehicles to be inspected, inspection criteria, times for the inspection of vehicle equipment, drivers' qualifications, hours of service, and all other matters with respect to the conduct of vehicle equipment and driver inspections.

(b) The chief of the Washington state patrol shall prepare and furnish such stickers, tags, record and report forms, stationery, and other supplies as shall be deemed necessary. The chief of the Washington state patrol is empowered to appoint and employ such assistants as he or she may consider necessary and to fix hours of employment and compensation.