User blog comment:Jake R/Admin and Chatmod Discussion: Swearing/@comment-1598117-20120823025456/@comment-1598117-20120824160317

If we're referring to the "f word", then it can only be used ONCE for the rating to be PG-13. If it's used more than once, it's automatically R-rated. That is an actual rule by the MPAA. And even despite that, I don't think I've ever seen a PG-13 movie to use that word.