Is the rating system a law? No, the rating system is strictly voluntary and carries no force of law. Can a rating be changed? Yes, the rules permit movie producers to re-edit their films and re-submit them in hopes of receiving another rating. Producers may also appeal a rating decision to the Rating Appeals Board, which is composed of men and women from the industry organizations that sponsor the rating system. A two-thirds secret ballot vote of those present on the Appeals Board may overturn a rating board decision. I JUST COPY AND PASTED THAT FROM RATINGS .COM