Washington Revised Code Title 81. Transportation § 81.72.210. Local regulatory powers listed

(1) Regulating entry into the business of providing taxicab transportation services;

(2) Requiring a license to be purchased as a condition of operating a taxicab and the right to revoke, cancel, or refuse to reissue a license for failure to comply with regulatory requirements;

(3) Controlling the rates charged for providing taxicab transportation service and the manner in which rates are calculated and collected, including the establishment of zones as the basis for rates;

(4) Regulating the routes of taxicabs, including restricting access to airports;

(5) Establishing safety, equipment, and insurance requirements; and

(6) Any other requirements adopted to ensure safe and reliable taxicab service.