HOW DARK CAN WINDOW TINT BE IN CALIFORNIA?
Darkness of tint is measured by Visible Light Transmission percentage (VLT%). In California, this percentage refers to percentage of visible light allowed in through the combination of film and the window.
Windshield Non-reflective tint is allowed on the top 4 inches of the windshield.
Front Side Windows Must allow more than 70% of light in. this is the one you are asking for!
Back Side Windows Any darkness can be used.
Rear Window Any darkness can be used.


