John's right about it being dependent on the specifics of each jurisdiction.
Back in the 1999 NEC AFCI was required for bedroom receptacle outlets. In the 2002 NEC the word "receptacle" was removed so that it was required for all bedroom outlets. Over the past few Code cycles it's been expanded to require AFCI darn near everywhere in the Dwelling.
I think right now that just about every outlet needs either GFCI or AFCI.
The current requirements in the area where you're working depends on which edition of the Code is being enforced; in addition to any local Amendments.
