Depends on the state laws. Most allow side and back tint of some level. Most do not allow front windshield tint at all.

i roll limo black, that has nothing to do with tint percentage. its the appearance of the installed tint

What is a "car limo"? Learn English, Bruno.

Only rear windshield, and/or rear passenger windows. No front door windows, and especially the front windshield. In Arizona, you can do all except front windshield.

it depends on the laws of the state in which you live, most states do not allow limo tint on regular vehicles