I was wondering if someone could clear up how the definition of a kitchen is worded in NEC 2005 210.8(B) "other than dwelling units". This section references the installation of GFCI protection in commercial or industrial kitchens. It defines a kitchen as " an area with a sink and permanent facilities for food-preparation and cooking". The text also makes clear that a sink must be installed in the food-preparation area for this section to require GFCI protection of the receptacles in these areas. Okay, so my question is how far does that area extend, does the 6 foot rule apply as it does in a dwelling unit?