210.12(B) Dwelling Units. All 120-volt, single phase, 15- and 20-ampere branch circuits supplying outlets installed in dwelling unit family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreation rooms, closets, hallways, or similar rooms or areas shall be protected by a listed arc-fault circuit interrupter, combination-type, installed to provide protection of the branch circuit.
You will notice the places that require GFCI protection (kitchens, bathrooms, outside, garages, unfinished basements, etc) are not listed.
I noticed this a while ago and it begs a question, why is dining room mentioned in both the AFCI and SABC requirements. If you were to continue a kitchen countertop branch circuit down to cover the outlets in the dining rm. (very common) then it would have GFCI protection unless you wired it different to not include the dining room outlets as GFCI protected. At the same time are you protecting this with an AFCI/GFCI combo breaker or another alternative?
Reason I am asking is Oregon did not adopt the AFCI rule and I don't have to deal with this. Don't ask I just live here!!:grin: