What does NEC 406.12 require in dwelling units?

• A. Tamper-resistant receptacles to prevent safe access by children.
• B. GFCI protection for all receptacles.
• C. Weatherproof outdoor outlets.
• D. Dedicated circuits for kitchens.

Answer: (A)

The main idea is safety: receptacles in homes must be tamper-resistant to reduce the risk of children inserting objects into live outlets. Tamper-resistant devices have internal shutters that block access to the electrical contacts until a proper plug is inserted, which helps prevent shock injuries and other hazards.

NEC 406.12 requires all general-use receptacles in dwelling units that are 15- or 20-amp and rated for 125–250 volts to be tamper-resistant. This applies across typical living spaces—bedrooms, living rooms, kitchens, bathrooms, hallways, garages, and outdoor areas that are part of a dwelling unit. It’s a targeted safety provision for receptacles themselves and is separate from other requirements like GFCI protection, weatherproofing, or dedicated kitchen circuits. When updating or renovating, replacing existing receptacles with tamper-resistant ones helps keep a dwelling compliant.