Feb
01
2009

Window Tinting / Sunscreening

  • Sunscreening devices are products, permanent, semi-permanent, and temporary, which reduce the adverse effects of the sun. WAC 204-10-224
  • Materials not permitted
    • Mirror finish products
    • Red, Yellow, Gold, or Black material
    • Brushed or sprayed on material. RCW 46.37.430
  • Sunscreening devices and/or recreational products may not be applied to, or suspended between the driver and the windshield, or to the windows to the immediate right and left of the driver. Recreational products may be applied to other windows only if they do not interfere, by their size and/or position with the driver’s ability to see other vehicles, persons, and objects. WAC 204-10-224
  • Must have both left and right side-view mirrors if window tinting is applied, allowing a 200′ view to the rear. RCW 46.37.430
  • The maximum level of sunscreening material to be applied to any window, except the windshield, shall have a total reflectance of 35% or less ( +3%), and a light transmittance of 35% or more ( +3%) resulting in a minimum of 24% light transmission on AS-2 glazing. RCW 46.37.430
  • Exemption – Doctor’s orders. RCW 46.37.430 A greater degree of sunscreening may be applied to the top 6″ of the windshield. RCW 46.37.430

Resource Links



  • In the United States, the Federal Motor Carrier Safety Administration, an administration within the federal Department of Transportation (DOT), specifies a minimum of 70 percent VLT for window tinting on the windshield and the windows to the immediate left and right of the driver for commercial vehicles (the DOT does not regulate private vehicles). The DOT does not specify any VLT requirements for rear windows. State law may regulate laws for private vehicles and may go further than the requirements those set forth by the DOT; private vehicles may have tint on the windows to the immediate left and right of the driver as dark as 20 percent VLT, depending on the state.
    • Window tinting films are usually professionally installed; however, most films require few specialized tools to install and may be installed by consumers. Incorrectly installed window tint may bubble or peel.
    • It is especially difficult to install wintow tint film on auto glass with curvature, for example, in the case of rear windows of cars, because of the care required in cutting and sizing the film. Auto tint is best installed by professionals; without the proper tools and techniques, amateur filming is prone to bubbling and separation from the glass.
    • Window film is typically installed after surfaces are thoroughly cleaned and wiped, typically using a commercial cleaner and a scraper blade, and then a simple soap solution is squirted on the glass before the film layer is mounted.
    • Most manufacturers will only warranty their window films when installed by a certified, trained installer.
  • Installation:

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2 Responses to “What is Spokane Window Tint ?”

  1. Hi, this is Mr. Spokane Window Tinter
    You have the option to comment on wondow tinting or auto detailing posts.

  2. I’m making a comment on spokane window tinting as a window tinter in spokane, wa

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