If you like to keep cool, protect yourself from harmful uv rays, or enjoy your privacy, you might be driving around California with tinted car windows. If you going to drive around with tinted windows then it's best you know the law. Not knowing the legal window tint in CA could result in a ticket. If you have already received a ticket you can enroll in an online traffic school to rectify that however you also need to adjust your windows. The California tint law exists to keep drivers safe while on the road. The legal tint in CA for car windows was designed based on the required minimum amount of light needed for safe for driving. You may want to keep your identity private, but CA lawmakers want to make sure it doesn’t come at the expense of injuring yourself or others.