ok so basically u can tint the taillights as long as they light up red.. and u cnt touch ur headlights... haha my boy said when he questioned the machine the cop told him "u see my windows they are legal tint would you like to go measure them" they went to measure them and his windows were 10% an my boy said isnt the limit 15% and the cop replied "its because the window is dirty " hahahahahahah