Sept. 1 Deadline Looms for Code Changes on Outdoor Outlets, GFCIs

On Sept. 1, 2026, a temporary exception in the National Electrical Code (NEC) is scheduled to expire. For builders, HVAC contractors, electricians, code officials and manufacturers, that date could have significant consequences, particularly in states and local jurisdictions that continue to enforce NEC Section 210.8(F), which requires ground-fault circuit interrupter (GFCI) protection for outdoor HVAC equipment.

The issue is not simply whether GFCI protection is a good idea, but rather if the industry has a reliable, widely available, cost-effective and field-proven solution before the exception expires.

What Is Changing?

Section 210.8(F) was added to the 2020 edition of the NEC and requires GFCI protection for outdoor outlets supplied by residential branch circuits. Because the NEC defines an "outlet" as any point where current is taken to supply equipment, the requirement applies not only to receptacles but also to hard-wired outdoor equipment such as air conditioners and heat pumps.

Following reports of nuisance tripping and compatibility concerns involving HVAC equipment, the National Fire Protection Association (NFPA) approved a temporary exception that exempted listed HVAC equipment from the requirement until Sept. 1. That exception was carried forward into later editions of the NEC. The 2026 NEC also added an alternative pathway using Class C special-purpose GFCI protection (SPGFCI) for qualifying HVAC equipment.

Impact on Builders

The exception is expiring while several questions on product availability, nuisance tripping and cost remain unresolved.

One of the industry's primary concerns is whether compliant products will be available in sufficient quantities. Recent discussions among builders, contractors and manufacturers indicate that some residential Class C SPGFCI products are not yet widely available. Industry participants have reported that certain manufacturers expect residential Class C products to become available only after the deadline passes, while newer high frequency (HF) rated GFCIs designed to work with modern appliances are only now entering the market.

Even if products are technically available, availability at scale is a different question. Builders need products that can be purchased, installed and supported nationwide.

NAHB has been raising concerns about GFCI compatibility since Section 210.8(F) was first introduced. Modern HVAC systems increasingly incorporate variable-speed compressors, inverters and other electronic controls.  And a nuisance trip on an air conditioner during a heat wave could leave vulnerable occupants without cooling until the breaker is reset, and in large areas of the southern U.S., the breaker panel is located on the outside of the home.

Builders and contractors are also watching for potential cost implications. Some stakeholders have expressed concern that if limited products are available when the exception expires, builders may be forced to use more expensive solutions that have not yet seen widespread residential use.

Many States Have Already Acted

A growing number of states and jurisdictions have concluded that modifications to Section 210.8(F) are necessary.

According to recent NAHB tracking, at least 19 states have amended, delayed or limited the requirement in some manner. An additional eight states are currently on editions of the code prior to 2020, which do not include Section 210.8(F). As a result, many builders across the country will not be affected by the Sept. 1 deadline. The greatest concerns exist in states and local jurisdictions that are enforcing Section 210.8(F) without amendments exempting HVAC equipment.

What Options Do HBAs Have?

• Connect with local professionals. HBAs can meet with local electrical inspectors to determine how they plan to handle the transition and any potential problems, such as lack of compliant breakers or instances of nuisance tripping. HBAs can also contact electrical contractors and distributors to verify they will have enough breakers available.
  
  
• Pursue regulatory updates. Although time is short, HBAs may pursue a state or local amendment exempting listed HVAC equipment or extending the current exception. This approach has already been used successfully in multiple states and jurisdictions. It allows additional time for products to mature and demonstrate field performance.
  
  Where formal amendments are difficult to obtain, building departments may be able to establish temporary enforcement policies, interpretations or variance procedures. Several jurisdictions previously used administrative processes that allowed replacement of nuisance-tripping devices when operational problems occurred. While not ideal, these approaches can provide flexibility during the transition period.

The expiration of the HVAC exception in NEC 210.8(F) is coming up quickly. For jurisdictions where the requirement remains unchanged, HBAs should verify that electrical contractors and inspectors are ready and may want to pursue a code amendment or policy change to address potential problems.