This was precipitated by the CCA refusing approval of the seal due to the strong depiction of violence in X-Force #116, a comic written by Peter Milligan and drawn by Mike Allred.
As well, by withdrawing from the CCA, this is seen as a move by editor-in-chief Joe Quesada to lure more high-profile creators to Marvel Comics.
[1] Today's ratings are usually found on the comic's UPC box.
The CCA deemed the issue too violent, and following this, Marvel removed its entire line from the scrutiny of the Comics Code.
Their age rating system used the following categories: However, the Motion Picture Association of America complained, as it holds a trademark on such classifications as PG and PG-13 (see MPAA film rating system).