Tinted front windows are common, but illegal

Q. Hi, Honk: I work in a kiosk for a park. I see many newer vehicles with completely tinted front windshields. It appears the tinting is factory installed and not aftermarket. I have never seen this, just started recently. I was wondering if it’s legal. Some of the windshields are so dark you cannot see the driver or passenger.
– Yvette Sanville, San Clemente
A. The front windshield and the side windows in the front can’t have more than a smidgen of tinting, which the factory l