ElectricalNEC 2023

Section 210.8/GFCI Protection Requirements

NEC 210.8 specifies where ground-fault circuit-interrupter protection is required for personnel. Here is what the section requires, how plan reviewers check for compliance, and the most common GFCI violations on electrical drawings.

What this section requires

Ground-fault circuit-interrupter protection for personnel must be provided for all 125-volt through 250-volt receptacles installed in specific locations.Section 210.8(A) covers dwelling units and Section 210.8(B) covers other than dwelling units (commercial, industrial, institutional). The 2023 NEC significantly expanded the voltage range from the previous 150-volt threshold to 250 volts, capturing 240-volt receptacles for the first time.

Why this section exists

GFCI devices detect imbalances between the hot and neutral conductors that indicate current is flowing through an unintended path, such as through a person. They trip at 4-6 milliamps, well below the threshold that causes electrocution. The locations specified in this section represent areas where the risk of electrical shock is elevated due to the presence of water, wet surfaces, or ground contact. Each code cycle has expanded the list of required locations based on electrocution data collected by the Consumer Product Safety Commission.

Dwelling unit locations (210.8(A))

GFCI protection is required for 125-volt through 250-volt receptacles in the following dwelling unit locations: bathrooms, garages and accessory buildings at or below grade, outdoors, crawl spaces at or below grade, basements (finished and unfinished), kitchens (all receptacles serving countertop surfaces and within 6 feet of the outside edge of a sink), laundry areas, bathtub and shower stall areas, and indoor damp and wet locations. The 2023 edition added 250-volt coverage, which means GFCI protection is now required for 240-volt appliance receptacles in these locations, including electric ranges, dryers, and water heaters.

Non-dwelling locations (210.8(B))

For commercial and industrial occupancies, GFCI protection is required for 125-volt through 250-volt receptacles in: bathrooms, kitchens, rooftops, outdoors, sinks (within 6 feet of the outside edge), indoor wet locations, locker rooms with associated showering facilities, garages, service bays, and similar areas, crawl spaces at or below grade, unfinished basements, boat hoists, and bathtub and shower stall areas. The practical impact for commercial plan review is that almost any receptacle near water or on a rooftop needs GFCI protection.

What plan reviewers look for

Plan reviewers cross-reference the architectural floor plans (to identify bathrooms, kitchens, laundry areas, and wet locations) with the electrical plans (to verify GFCI protection is shown on receptacles in those locations). GFCI protection can be provided at the receptacle (GFCI receptacle), at the circuit breaker (GFCI breaker), or by a GFCI device upstream. The drawings should clearly indicate which method is used. Reviewers also check that outdoor receptacles and rooftop receptacles are GFCI-protected regardless of voltage.

Common violations

Kitchen receptacles near sinks not GFCI-protected

The electrical plan shows standard receptacles within 6 feet of a kitchen sink. All receptacles serving countertop surfaces in a kitchen require GFCI protection, and any receptacle within 6 feet of the outside edge of a sink requires GFCI protection regardless of whether it serves a countertop. This applies to both residential and commercial kitchens.

240-volt receptacles missing GFCI protection

This is a new issue with the 2023 NEC. The voltage threshold expansion from 150V to 250V means that 240-volt receptacles in garages, basements, bathrooms, and outdoors now require GFCI protection. Drawings designed to previous code editions may not include GFCI protection on 240-volt circuits in these locations. Electric vehicle charging receptacles in garages and dryer receptacles in basements are common misses.

Rooftop receptacles not GFCI-protected

Commercial buildings often have rooftop receptacles for HVAC service. Section 210.8(B)(2) requires GFCI protection for all rooftop receptacles, but these are frequently shown as standard receptacles on the electrical plans because the HVAC rooftop equipment circuits are designed separately from the general receptacle layout.

Compliance tip

On the electrical plans, label every GFCI-protected receptacle and circuit with a "GFI" or "GFCI" designation. Include a note on the panel schedule identifying which breakers are GFCI-type. For the 2023 NEC, review all 240-volt receptacles in locations listed in 210.8 and add GFCI protection where required by the expanded voltage range.

Changes across NEC editions

Each NEC cycle has expanded GFCI requirements. The 2020 edition added basements (both finished and unfinished) for dwelling units. The 2023 edition expanded the voltage threshold from 150 volts to 250 volts, which was the most significant change to this section in decades. It also added specific requirements for dishwasher branch circuits in dwelling units. When reviewing drawings, verify which NEC edition the jurisdiction has adopted, as the GFCI requirements differ meaningfully between the 2017, 2020, and 2023 editions.

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