GFCI Protection Under NEC 210.8: Where It’s Required in Homes

Where must a home have GFCI protection? In the NEC, section 210.8 (ground fault circuit interrupter protection for personnel) answers that, and the list of locations keeps growing with each code cycle, according to Electrician U's Dustin. A GFCI is either a breaker or a receptacle that disconnects the incoming conductors from the load side within milliseconds when a ground fault occurs, such as a hot conductor touching metal around electrical equipment.

What GFCI protection covers

In dwelling units, 210.8(A) applies to all 125 volt through 250 volt receptacles in listed locations, supplied by single-phase branch circuits rated 150 volts or less to ground. It targets receptacles, not lighting, with one crawl space lighting outlet mention. It also protects the receptacle, not the whole branch circuit, which is how it differs from arc-fault protection. The point of contact is where someone might touch a prong while plugging in.

The dwelling-unit locations

• Bathrooms
• Garages and accessory buildings with floors at or below grade, used for storage, work areas and similar
• Outdoors
• Crawl spaces at or below grade
• Basements
• Kitchens: all receptacles, including areas with sinks and permanent provisions for food prep, beverage prep or cooking
• Within 6 feet of the top inside edge of a sink bowl
• Boat houses
• Within 6 feet of the outside edge of a bathtub or shower stall
• Laundry areas
• Indoor damp and wet locations, left to the AHJ; a mud room is given as an example

Exceptions

There are four exceptions: receptacles not readily accessible on dedicated snow-melting, de-icing or pipeline and vessel heating circuits; a receptacle supplying only a permanently installed premises security system; listed weight-supporting ceiling receptacles for a luminaire or ceiling fan; and factory-installed receptacles not readily accessible inside bathroom exhaust fan assemblies, unless required by their construction or listing. Dustin says an inspector once failed his rough inspection over such a fan receptacle in a bathroom with a 10 foot ceiling.

Other requirements

Crawl space lighting outlets must be protected under 210.8(C). Specific appliances must also be GFCI protected: dishwashers, electric ranges, wall-mounted ovens, counter-mounted cooking units, clothes dryers and microwave ovens. Service receptacles required by 210.63, 125 volt single-phase 15 or 20 amp outlets within 25 feet of equipment needing servicing, must be GFCI protected too.

For dwellings, outdoor outlets supplied by single-phase branch circuits of 150 volts or less to ground and 50 amps or less need GFCI protection, including those in garages with floors at or below grade, accessory buildings and boat houses. If equipment supplied by such an outlet is replaced, the outlet must be supplied with GFCI protection. Lighting outlets other than those in crawl spaces are excepted. Listed HVAC equipment is also excepted, but that exception expires September 1st of 2026.