Wash. Admin. Code § 204-36-060
(1) If the patrol approves the initial application, the applicant will be issued a temporary permit for the vehicle(s) which will be valid for thirty days, during which time the emergency equipment may be installed for the purpose of inspection. After installation of the emergency equipment, the applicant must bring the vehicle to a district or detachment office of the patrol to be examined by any patrol officer to verify the location, make, model, and color (if applicable) of the emergency equipment. A patrol officer will certify the results of this examination on a form prescribed and provided by the patrol and the applicant must file the form with the patrol. Original forms may be mailed to the patrol at the Equipment and Standards Unit, General Administration Building, P.O. Box 42600, Olympia, WA 98504-2600 or the electronic record of the form may be emailed to equipment@wsp.wa.gov. Upon the patrol's receipt of such certification, the patrol will review the documentation and may issue a vehicle permit, which must be carried in the vehicle at all times, and expires when:
(3) A request to add new equipment to a vehicle with a current permit may be made at any time in writing to the patrol. If additional equipment other than that approved under the vehicle permit must be installed:
[Statutory Authority: RCW 46.37.194. WSR 14-24-116, § 204-36-060, filed 12/3/14, effective 1/3/15. Statutory Authority: RCW 46.37.194 and 46.37.005. WSR 09-09-091, § 204-36-060, filed 4/16/09, effective 5/17/09; WSR 02-07-055, § 204-36-060, filed 3/14/02, effective 4/14/02. Statutory Authority: RCW 46.37.194. WSR 90-07-034, § 204-36-060, filed 3/15/90, effective 4/15/90; WSR 88-15-052 (Order 88-08-ESR), § 204-36-060, filed 7/18/88. Statutory Authority: RCW 46.37.005 and 46.37.194. WSR 81-04-043 (Order 81-01-01), § 204-36-060, filed 2/3/81; WSR 79-02-085 (Order 7501A), § 204-36-060, filed 2/7/79; Order 7301, § 204-36-060, filed 2/5/73.]