RCW 46.08.150

The director of enterprise services shall have power to devise and promulgate rules and regulations for the control of vehicular and pedestrian traffic and the parking of motor vehicles on the state capitol grounds. However, the monetary penalty for parking a motor vehicle without a valid special license plate or placard in a parking place reserved for persons with physical disabilities shall be the same as provided in RCW 46.19.050. Such rules and regulations shall be promulgated by publication in one issue of a newspaper published at the state capitol and shall be given such further publicity as the director may deem proper.