2026 NEC Raises Outdoor GFCI Threshold to 60 Amps as HVAC Exception Nears Its End
The National Fire Protection Association issued the 2026 edition of NFPA 70, the National Electrical Code, in August 2025, with an effective date of September 9, 2025. Among the changes affecting homeowners: Section 210.8(F), which governs GFCI protection for outdoor outlets at dwelling units, now applies to circuits rated up to 60 amps, up from the previous 50-amp threshold.
The change matters because larger outdoor equipment — pool heaters, spa equipment, and bigger air-conditioning compressors — commonly runs on 60-amp circuits that weren't captured under the older limit. According to UL Solutions, the code-making panel behind the revision concluded that the hazard associated with a 60-amp outlet is no different from one rated 50 amps, and that compatible GFCI protection is now widely available at that rating.
The same section carries forward a narrower but more time-sensitive change: an exception that has delayed GFCI protection for listed HVAC equipment since the 2020 NEC cycle is set to expire on September 1, 2026. After that date, in jurisdictions enforcing the 2026 code, outdoor HVAC equipment will need to carry ground-fault protection — though a new Exception No. 3 permits listed Class C Special-Purpose GFCIs (SPGFCIs) specifically built for HVAC equipment's leakage profile, avoiding the nuisance-tripping problems standard GFCIs caused on older variable-speed compressors.
Adoption of the 2026 NEC is proceeding state by state rather than all at once. A residential-construction analysis from Buildermuse notes the new edition was already on the books in 14 states as of the first quarter of 2026, with more expected to adopt over the following 18 to 36 months. Homeowners planning outdoor HVAC, pool, or spa work should confirm with a licensed contractor which code edition their local authority having jurisdiction currently enforces, and whether the installed protection device is rated for the equipment involved.
For homeowners trying to work out roughly what a GFCI-related upgrade might cost given these changes, the free TripTrace cost estimator factors in outdoor and equipment-specific scenarios alongside standard outlet swaps.