05/04/2026
Did you know arc faults cause more than 28,000 home fires in the United States every year?
These fires result in hundreds of deaths, over a thousand injuries, and more than $700 million in property damage. Arc faults happen when electricity escapes from damaged or worn wiring—loose connections, frayed cords, nails through wires in your walls, or aging insulation breaking down.
The scary part? Regular circuit breakers don't catch these problems until it's too late.
That's exactly what AFCI breakers were designed to prevent. And Tennessee electrical code now requires them throughout most of your home—not just bedrooms.
So what is an AFCI breaker?
AFCI stands for Arc Fault Circuit Interrupter. It's a special type of breaker that detects dangerous electrical arcs and shuts off power before a fire starts. According to the Consumer Product Safety Commission, AFCIs could prevent more than 50 percent of electrical fires that occur every year.
When did the requirements change?
Before 2008: AFCI only required in bedrooms
2008: Expanded to family rooms, living rooms, dining rooms, hallways, and similar areas
2014: Expanded again to include kitchens and laundry areas
If your home was built before 2008, you're likely only protected in bedrooms. If it was built before 2014, your kitchen and laundry areas probably don't have AFCI protection.
How do you know if you have them?
Look at your electrical panel. AFCI breakers are usually labeled with "AFCI" or have a test button on them. If you've got an older home or an older panel, there's a good chance most of your circuits aren't protected.
Does it matter if your house is older?
If you're doing any electrical work—adding outlets, upgrading your panel, remodeling a room—those circuits need to be brought up to current code, which means AFCI breakers. It's also a smart safety upgrade even if you're not doing any work.
Where are they required in Tennessee now?
AFCI protection is required for most 15- and 20-amp circuits throughout your home—bedrooms, living rooms, dining rooms, kitchens, hallways, family rooms, and more. The exceptions are bathrooms, garages, unfinished basements, and outdoor circuits.
Not sure if your home has AFCI protection? We can check your panel and let you know what you've got.
Call or text: (615) 416-5954 duttonelectrictn.com