The Motion Picture Association of America, Inc. (MPAA), originally the Motion Picture Producers and Distributors of America (MPPDA), was founded in 1922 and is designed to advance the business interests of its members. 

MPAA is a United States non-profit business Trad Organisation and administers the voluntary, but dominant MPAA film rating system.

MPAA ratings carry no force of local, state, or federal law anywhere in the United States.

They only serve as a consumer suggestion by a group of corporate analysts. After screening films, the selected viewers arrive at one of five ratings.

Theater owners agree to enforce corporate film ratings as determined by the MPAA, which in turn facilitates their access to new film releases.

As part of its campaign to curb copyrigh infringement, the MPAA fights against sharing copyrighted works via peer-topeer file-sharing networks. The MPAA’s anti-piracy campaign has gained much publicity and criticism. The motion picture Association of America also holds and establishes laws which protects their productions from being pirated or given out to the mass for free.

This articl was taken from www.wikipedia.org