If you’re installing or adding receptacles in a California home, the California code for electrical outlets sets minimum rules for how far apart outlets must sit, which rooms need dedicated circuits, and which outlets require GFCI, AFCI, tamper-resistant, or weather-resistant protection. Those rules live in the 2025 California Electrical Code (CEC), which took effect January 1, 2026 and is based on the 2023 National Electrical Code.1NFPA. Learn Where the NEC Is Enforced Get them right and your inspection passes; get them wrong and you may be opening walls, losing insurance coverage, or creating a real fire or shock hazard.
Which Code Applies to Your Project
The CEC is adopted as Title 24, Part 3 of the California Code of Regulations.2California Department of General Services. Codes It is the full text of the National Electrical Code with California-specific amendments layered on top.3California Department of General Services. Overview – Title 24 Building Standards Code as Adopted by the Division of the State Architect County and city building departments enforce it and can adopt amendments stricter than the statewide baseline. Before you start, confirm the rules with your local building department, because what follows are statewide minimums your jurisdiction may exceed.
How Far Apart Outlets Have to Be
In habitable rooms like bedrooms, living rooms, and dining areas, the spacing requirement is often called the “6-foot rule.” No point along the floor line of any wall can be more than 6 feet from a receptacle, which works out to outlets no more than 12 feet apart on a continuous wall. The purpose is to eliminate the need for extension cords.
“Wall space” means any continuous section of wall 2 feet wide or more. Doorways, fireplaces, and built-in cabinets break the measurement; each section on either side is treated independently and the 6-foot count restarts at the edge of the opening. Hallways longer than 10 feet need at least one receptacle.
Floor-mounted receptacles count toward wall spacing only when they sit within 18 inches of the wall. Anything farther out doesn’t satisfy the rule, even in the same room.
Kitchen Outlet Rules
Countertop Spacing
Along kitchen countertops, no point on the wall behind the counter can be more than 24 inches from a receptacle, which means outlets no more than 48 inches apart. Any countertop section 12 inches wide or more needs its own outlet. Receptacles cannot be installed directly behind a range or sink.
Islands and Peninsulas
Under the 2023 NEC that the current CEC adopts, receptacles on kitchen islands and peninsulas are no longer strictly required. If you skip the outlet, the code still requires you to rough in the infrastructure (wiring and a junction box) so one can be added later.4NFPA. Evolution of Kitchen Island and Peninsula Receptacle Outlet Requirements: Updates Through the 2026 NEC If you do install one, it must sit on or above the countertop (no more than 20 inches above it) or be a flush-mount assembly listed for countertop use. Mounting outlets on the sides of base cabinets below the countertop is no longer permitted.
Small Appliance Circuits
At least two dedicated 20-ampere small appliance branch circuits must serve all countertop and dining area receptacles. These circuits exist for the kitchen, pantry, breakfast room, and dining room only. They cannot feed outlets anywhere else in the house.
Bathroom and Laundry Requirements
Every bathroom needs at least one receptacle within 3 feet of the outside edge of each sink basin. The outlet must be on a wall or partition adjacent to the sink, on the countertop, or on the face of the sink cabinet, and it cannot sit more than 12 inches below the countertop. The circuit feeding bathroom receptacles must be a dedicated 20-ampere branch, and every outlet in the room requires GFCI protection.
Laundry rooms need at least one receptacle within 6 feet of the intended equipment location, served by its own dedicated 20-ampere circuit that powers nothing else. That circuit is separate from the kitchen’s small appliance circuits and from any bathroom circuit. The dedicated-circuit rule still applies when the laundry shares space with another use, like a combination laundry-mudroom.
GFCI Protection: Where It’s Required
A ground-fault circuit interrupter detects small current imbalances that mean electricity is leaking (through water, through a person, through damaged insulation) and cuts power within a fraction of a second. GFCI protection is required for all 125-volt, single-phase, 15- and 20-ampere receptacles in locations where shock risk is elevated.
- Bathrooms: every receptacle in the room
- Kitchens: all receptacles serving countertops, plus any within 6 feet of the inside edge of a sink
- Laundry areas: generally all receptacles, and any within 6 feet of a sink
- Garages and accessory buildings: all receptacles at or below grade
- Outdoors: every exterior receptacle
- Crawl spaces and unfinished basements: all receptacles at or below grade
- Any room not listed above: any receptacle within 6 feet of the inside edge of a sink bowl
A common misreading is that kitchen GFCI protection applies only to outlets near the sink. Every receptacle serving a kitchen countertop needs GFCI protection regardless of its distance from water. The separate 6-foot-from-sink rule catches other outlets, like one behind a freestanding range, that happen to fall within that radius.
You can provide GFCI protection at the receptacle itself, at the breaker panel with a GFCI breaker, or by wiring standard outlets downstream of a GFCI device.
AFCI Protection: Where It’s Required
Arc-fault circuit interrupters detect the electrical signature of an unintentional arc (from a damaged cord, a nail driven through a cable, a loose connection inside a wall) and shut down the circuit before the arc can ignite anything.
AFCI protection is required for all 120-volt, single-phase, 15- and 20-ampere branch circuits supplying outlets in essentially every habitable area of a dwelling unit: kitchens, family rooms, dining rooms, living rooms, bedrooms, dens, libraries, sunrooms, recreation rooms, closets, hallways, and laundry areas. The main spaces not covered are bathrooms, garages, and outdoors. AFCI protection is usually provided through an AFCI breaker at the panel. In kitchens and laundry areas, where both GFCI and AFCI are required, dual-function breakers satisfy both.
Tamper-Resistant and Weather-Resistant Outlets
Every non-locking, 125-volt, 15- and 20-ampere receptacle in a California dwelling unit must be tamper-resistant. These outlets have spring-loaded shutters that block foreign objects unless equal pressure is applied to both slots at once by a proper plug. The requirement covers all new and replacement outlets in habitable rooms. Outlets mounted higher than 5½ feet above the floor are exempt, as are receptacles in dedicated spaces behind appliances that can’t be easily moved. California’s 2025 code adds one state amendment: mobile homes and manufactured homes are excluded from the tamper-resistant requirement.5California Department of General Services. 2025 Title 24 California Code Changes
Receptacles installed outdoors or in damp or wet locations must be rated weather-resistant and marked “WR” in a location that stays visible after the cover plate is installed. Outdoor outlets also need an approved weatherproof cover: a flip-lid type is acceptable only if the outlet won’t be used while the cover is closed, and an “in-use” cover protects the outlet even with a cord plugged in.
Exterior, Garage, and Basement Outlets
Every single-family home, and each unit of a two-family dwelling at grade level, must have at least one receptacle at the front and one at the back of the building. Each outdoor outlet must be readily accessible from grade and mounted no more than 6½ feet above grade. All exterior receptacles require GFCI protection and a wet-location weatherproof cover.
Any garage with electric power, attached or detached, needs at least one receptacle for each vehicle bay. The circuit feeding garage receptacles cannot supply outlets outside the garage, and all garage receptacles require GFCI protection. If you plan to charge an electric vehicle, note that a dedicated EV circuit falls under Article 625 of the NEC, and California’s CALGreen Code (Title 24, Part 11) sets EV-readiness requirements for new construction that go beyond the electrical code.
In unfinished basements, at least one receptacle is required in each separate unfinished portion, with GFCI protection. If the space is later finished into a habitable room, the standard 6-foot spacing rule and AFCI protection then apply.
Permits, DIY Work, and What Happens If You Skip Them
An electrical permit is generally required any time you install, alter, or replace part of an electrical system. Swapping an existing receptacle for a new one of the same type is typically exempt. Adding a new outlet, running a new circuit, or installing a GFCI outlet in a new location requires a permit and an inspection by the local building department.
California law lets homeowners perform electrical work on a home they personally own and occupy as their primary residence, without holding a contractor’s license. You still have to pull the permit and pass the same inspections a licensed electrician would. The inspector can require you to tear out and redo anything that doesn’t comply. For rental properties, even ones you own, the work must be done by a licensed electrical contractor.
Unpermitted work tends to surface during a home sale, when the buyer’s inspector flags it and you have to open walls to prove compliance. If an electrical fire traces back to unpermitted or non-compliant wiring, your homeowner’s insurance carrier may reduce or deny the claim. Keep the permits, the inspection sign-offs, and any upgrade records on file.