After the MPAA has apparently given some other fanfiction sites and owners a hard time about using "their" movie rating system, there is now a new rating system for fanfiction, first invented by Jessi from Desert Dwellers. Please use it on the fics you submit to me, and check the list if you're confused as to what is what.
CHILD (C): suitable for all ages (formerly G)
YOUNGER TEEN (YT) - some content may not be suitable for children (formerly PG)
TEEN (T) - suitable for teens and above (formerly PG-13)
MATURE (M) - suitable for mature readers (formerly R)