Easy!! Done it many times! all you need to do is peel the tint off and you will notice the sticky gluish residue on the window. this part is the bitch part. all you need is a spray bottle with water or window cleaner in it and a razor blade with a handle and start spraying and scraping away. it may take time but unless u want to pay someone to do it its gonna take alot more time to get your car checked.