“Do I need GFCI on that 240-volt dryer outlet now?” Under the 2023 National Electrical Code, almost certainly yes, and for two separate reasons. Whether the 2023 code is the one your job is held to is a different question, and the answer changes from state to state and sometimes from town to town. This article covers what the 2023 edition did to ground-fault (GFCI) and arc-fault (AFCI) protection in homes, the outdoor HVAC exception that ran out on September 1, 2026, and how to find out which edition and which amendments apply where you work.
First, which code are you under?
The NEC is a model code published by the National Fire Protection Association. It applies to your job once a state or local government adopts it, and a government can amend it when it does. Three places tell you what applies:
Editions keep moving. Minnesota, for one, adopted the 2026 NEC without amendment, effective August 17, 2026. In the other direction, the National Association of Home Builders published model amendments in April 2023 for its state and local associations to propose, striking several of the 2023 GFCI and AFCI rules described below, and reported that similar amendments had already been adopted in a number of states. The code book is where the rule starts; the adopted code is what the inspector enforces. Minnesota’s labor department notes that NFPA offers free online viewing of the NEC with a user registration.
GFCI in dwellings: 210.8(A)
The 2023 rule covers all 125-volt through 250-volt receptacles supplied by single-phase branch circuits rated 150 volts or less to ground in these locations of a dwelling unit: bathrooms; garages and accessory buildings with a floor at or below grade that are not habitable rooms and are limited to storage, work and similar use; outdoors; crawl spaces at or below grade; basements; kitchens; areas with sinks and permanent provisions for food preparation, beverage preparation or cooking; within 6 feet of a sink; boathouses; within 6 feet of a bathtub or shower stall; laundry areas; and indoor damp and wet locations.
Three parts of that list catch people:
GFCI for appliances, wherever they sit: 210.8(D)
The 2023 edition added electric ranges, wall-mounted ovens, counter-mounted cooking units, clothes dryers and microwave ovens to the list of specific appliances whose branch circuit or outlet needs GFCI protection, for appliances rated 150 volts or less to ground and 60 amperes or less, single- or three-phase. The list already held items such as sump pumps and dishwashers. Because the rule is written for the branch circuit or outlet, it reaches hard-wired appliances as well as plugged-in ones; the code panel’s statement on the change was that “the shock hazard does not go away due to hard wired versus cord-and-plug connected equipment.”
So the dryer question has two answers that point the same way: the receptacle is a 250-volt receptacle in a laundry area under 210.8(A), and the dryer is a listed appliance under 210.8(D).
The appliance rules were contested. The Association of Home Appliance Manufacturers asked for an emergency amendment that would have exempted electric ranges, wall-mounted ovens, counter-mounted cooking units and microwave ovens in a dedicated space and not easily moved or fastened in place, until January 1, 2028, citing nuisance tripping. The code panel’s ballot in September 2023 fell short of the votes needed to issue it. Where your state amended the rule itself, the state’s version is the one that counts.
Outdoor outlets and the HVAC deadline: 210.8(F)
For dwellings, 210.8(F) requires GFCI protection for all outdoor outlets, not just receptacles, supplied by single-phase branch circuits rated 150 volts or less to ground and 50 amperes or less. That includes outlets in garages with floors at or below grade, accessory buildings and boathouses. Lighting outlets are excepted, other than those covered by 210.8(C). And when equipment supplied by one of these outlets is replaced, the outlet must then be GFCI protected.
That last sentence is the one for HVAC work. As issued, the 2023 edition carried an exception: “GFCI protection shall not be required for listed HVAC equipment. This exception shall expire September 1, 2026.” That date has passed. Where the 2023 edition is adopted as written, a condenser or heat pump replaced today means a GFCI-protected outlet, and the price and the parts list should say so. If you change out outdoor units, the refrigerant changeover is the other big change on that job.
States handled this rule in different ways. NAHB reported in 2023 that Georgia, Massachusetts, New Mexico, Oregon, South Dakota, Texas and Utah had adopted amendments similar to its own, which deletes the outdoor outlet rule. The 2026 edition, as Minnesota describes it, adds an exception that allows Class C GFCI protection for listed HVAC equipment after September 1, 2026, with a warning marking at the disconnect. Minnesota also says that under its own statute it will not enforce GFCI protection when an existing HVAC unit or disconnect is replaced, as long as the replacement involves existing readily accessible equipment and the existing feeder or branch circuit is not altered or extended. Check your own state before you quote.
AFCI in dwellings: 210.12
Under the 2023 edition, AFCI protection covers all 120-volt, single-phase, 10-, 15- and 20-ampere branch circuits supplying outlets or devices in a dwelling’s kitchens, family rooms, dining rooms, living rooms, parlors, libraries, dens, bedrooms, sunrooms, recreation rooms, closets, hallways, laundry areas and similar areas. Service work is caught too: section 406.4(D)(4) brings AFCI protection into receptacle replacements in dwelling units, and NAHB’s model amendments would delete that section as well. A customer who asks you to swap a worn receptacle in a bedroom may be buying AFCI protection with it, and the quote should say so.
Why it matters, and the monthly test
The Electrical Safety Foundation International sums up the case for GFCIs with a U.S. Consumer Product Safety Commission study that found 47 percent of electrocutions could have been addressed with GFCI protection in homes. ESFI also says GFCIs can be damaged by voltage surges from lightning or utility switching, or simply by normal use, and asks homeowners to test them every month: with a nightlight plugged in, press the test button, check that the light goes off, then press reset. Leaving that instruction with every customer costs nothing.
What to do this month
- Confirm your edition and amendments for every jurisdiction you work in, and write them down where the person quoting jobs can see them.
- Update your price book for GFCI and dual-function breakers on dryer, range, kitchen and outdoor HVAC circuits; Flat-Rate Pricing for Service Calls shows how to carry that into a flat-rate menu.
- Brief your HVAC partners on the end of the September 1, 2026 exception, if your state adopted the 2023 edition as written.
- Pull the permit where one is needed; Do You Need a Permit? covers the work the model code exempts.
More for electrical contractors is on the electrical page.
General information, not legal or tax advice. Rules change and vary by state; check with the agency named above or a professional for your situation.