California window tint law restricts windshield tint on top 4 inches. Front side windows must have 70% light transmission or more. Back side windows and rear window may have any tint darkness.
California Window Tinting Laws
Window tint darkness in California
The percent of visible light allowed through your car windows is called VLT: Visible Light Transmission. The percentage of light allowed through your film and glass in California is very specific and different for sedan cars and SUV cars or vans.
Tint darkness for sedans:
- Windshield: Non-reflective tint is allowed on the top 4 inches of the windshield.
- Front Side windows: Aftermarket film must allow more than 88% of light in, or minimum 70% VLT if combined with factory-tinted windows.
- Back Side windows: Any darkness can be used.
- Rear Window: Any darkness can be used.
Tint darkness for SUV and vans:
- Windshield: Non-reflective tint is allowed on the top 4 inches of the windshield.
- Front Side windows: Aftermarket film must allow more than 88% of light in, or minimum 70% VLT if combined with factory-tinted windows.
- Back Side windows: Any darkness can be used.
- Rear Window: Any darkness can be used.
Window tint reflection in California
Window tint can reflect incoming light and reduce glare and heat. California window tint law permits a certain window reflection when using a tint so make sure you pay attention to this as well.
Tint reflection for sedans:
- Front Side windows: Must not be more reflective than a standard window.
- Back Side windows: Must not be more reflective than a standard window.
Tint reflection for SUV and vans:
- Front Side windows: Must not be more reflective than a standard window.
- Back Side windows: Must not be more reflective than a standard window.
Other California window tint rules and regulations:
California does have several other important laws, rules and regulations pertaining to window tinting. They include the following:
- Side Mirrors: Dual side mirrors are required if the rear window is tinted.
- Restricted Colors: California tint laws do not permit using red, amber or blue tint colors. Side windows must be colorless.
- Certificates: Manufacturers of film must certify the film they sell in the state and the driver is required to have the certificate in their possession.
- Stickers: State law does require a certificate or a sticker from the installing company and the manufacturer's name and address.
- Medical Exceptions: California law allows medical exemptions for lower tint on all windows.