Hello List, When I ordered samples from Jamstrait I asked the gentlemen on the phone if they were DOT approved. He said, all incandescent bulbs on your car (except the headlights) are not DOT approved. Only the lenses are DOT approved. Therefore they are legal to use. Now, I don't know local laws concerning that matter but that's what he had told me. You will have to look into it. I do know that some clear lenses that are used are not DOT approved. But again, depending on the area you live. I don't want to defend or tell people on this list to purchase something that I like or works for me. I don't recommend modifying your taillights or any other lenses on your car. Use your own judgment and research the item yourself. www.jamstrait.com these are the guys with the good stuff. there web page doesn't give to much info. So look in yahoo's File under LED's I posted pics and specs. Note: There is a company called katz that advertises in import mags. They buy there Leds from Jamstrait and with a nice price mark up. Regards Mike OUTATYM