Technically I am pretty sure we are supposed to have it in Colorado, but I see Jeeps without flares around town all the time. Your are not supposed to remove any safety equipment the vehicle had when manufactured and I think lights constitute safety equipment. Since most of the cars I see have expired plates I wouldn't worry about it too much, however if a cop needs a reason to pull you over for something else, you are giving them one. Same goes with the 3rd brake light. When I had to remove the factory 3rd brake light to fit my bigger spare I replaced it with an aftermarket one since it is a piece of safety equipment the car was manufactured with, so I wouldn't give them a reason, however my cracked windshield gives them a reason anyway.