Re: AFCI requirement
Originally posted by gserve:. . . the closet light is wired to the . . . master bedroom
These are the key words in your description of the setup. In your specific case, the answer to your original question is ?Yes.?
210.12(B) requires AFCI protection for the entire branch circuit that supplies any outlets (receptacles, lights, or other outlets) in any bedroom. If you get the power for your closet light from the bedroom circuit, it must necessarily be protected by the same AFCI device that protects all the other bedroom outlets.
Please note that being a ?bedroom closet? is not relevant in any way. Suppose, for example, that you get power for the closet light from a different circuit than any bedroom outlet. Suppose further that you put a light switch inside the bedroom to control the lights in the closet. Since the power to the closet lights does not come from the bedroom circuit, the closet light circuit does not require AFCI protection. Also, since the light switch is not an ?outlet,? by the NEC definition, the light switch itself does not require AFCI protection.