NEC 210.8(A)(1)

NEC 210.4(B)

When a shared neutral (multi-wire branch circuit) is used, the neutral must be identified as to which circuits it serves. Additionally, simultaneous disconnect of all ungrounded conductors sharing the neutral is required.

NEC 210.52(B)(1)

The NEC requires a minimum of two 20A small appliance branch circuits to serve the kitchen countertop receptacles. A refrigerator is permitted (but not required) to be on one of these circuits. However, best practice is to provide a dedicated circuit for the refrigerator so that a tripped breaker on the small appliance circuit does not de-energize the refrigerator and spoil food.

NEC 210.52(H)

This installation passes. NEC 210.52(H) requires at least one receptacle outlet in a dwelling hallway 10 feet or more in length — this 12-foot hallway has one, so the requirement is met. The 6-foot spacing rule of NEC 210.52(A) applies to the wall space of habitable rooms (kitchens, bedrooms, living areas), NOT to hallways. Knowing which spaces each part of 210.52 governs is the whole game: halls need one outlet, habitable-room wall space needs the 6-foot rule.

NEC 210.8(A)(3) / 406.9(B)(1)

Outdoor receptacles at dwellings require GFCI protection per NEC 210.8(A)(3) and must have an enclosure that is weatherproof whether or not the attachment plug cap is inserted (in-use cover) per NEC 406.9(B)(1). There is no NEC minimum height requirement for outdoor receptacles, though local codes may specify one. The installation meets code with GFCI protection and a wet-location in-use cover.

NEC 210.8(A)(6)

ALL kitchen countertop receptacles require GFCI protection, regardless of distance from the sink. NEC 210.8(A)(6) requires GFCI protection for all 125V, 15A and 20A receptacles that serve countertop surfaces in kitchens. The 6-foot rule applies to sinks in other locations — in kitchens, it is a blanket requirement for all countertop receptacles.

NEC 210.8(B)(7)

All 125V, 15A and 20A receptacles installed within 6 feet of a sink edge in commercial occupancies require GFCI protection. Break room sinks in commercial offices are treated the same as kitchen sinks for GFCI purposes.