in ohio you have to have it on the front,...it looks shitty on the front bumper,...i still dont have one of each car but ive only been warned once,..and i dont put mine in the windshield area for 2 reasons,..1. like someone already said if you get into an accident then it can fly and slice you up,...and 2. because if a cop sees that its wedged on your windshield then he KNOWS thats its not on your front bumper for sure,...most cops dont look for a front liscense plate here but if they see it in the windshield then they remember to look for one on the front bumper