Is there a tire size limit that is beyond the manufactor listing that cannot pass Pa inspection?

Is there a tire size limit that is beyond the manufactor listing that cannot pass Pa inspection?
You can go two sizes up but not down,and it's usually front and rear. You need to look on the drivers door jam for the manufacture suggested tire size. just remember if the tires are too big they and the body can easily get damaged ! remember two things can not occupy the same space at the same time. Also if you want to put on wider tires you might have to get different off set wheels so the side walls of the tire don't rub. If you go to a good tire / wheel store they might have a book to look up what you can and can't put in the wheel well along with combinations. anyway good luck with your project.