I went to the Redlands City Hall to ask.
70% state wide. ( can depend on city though...)
I got 35% all around, and clear on the windshield.
Like I stated in many other threads( mostly the ABM,( we are blue cousins ) and blue threads.. )) I got followed, and even blocked in at Walmart by a cop, just to have them walk around and admire the beautiful jet Stream Blue paint job on the car...
they never said anything negative of the tint, or the missing front lic. plate.