What electrical code does California use?
California currently follows NEC 2020 for electrical work. Always confirm the in-force edition with the local Authority Having Jurisdiction (AHJ) — county or city amendments can apply.
Electrical Code Adoption
California Electrical Code: NEC 2020
California follows NEC 2020 as the basis for electrical work. Permits and inspections are issued by the local Authority Having Jurisdiction (AHJ), which may publish additional amendments.
Adoption details
- Model code family
- NEC (NFPA 70)
- Adopted edition
- NEC 2020
- Last verified
- 2026-05-29
- Source
- Adoption tracker
Note: California Electrical Code (Title 24, Part 3) is based on NEC with extensive state amendments. CEC 2025 (NEC 2023-based) is effective 2026-01-01.
Related resources for California
Frequently Asked Questions
Do I need a permit for electrical work in California?
Most electrical work in California — including new installations, system replacement, and gas-fueled appliance hookups — requires a permit from the local building department and an inspection at completion. Homeowner permits are typically allowed for owner-occupied residences; commercial work requires a licensed contractor.
Where do I check California electrical code amendments?
Local jurisdictions (city or county) often publish amendments on the state's building-codes board website or in the municipal code. The current NEC 2020 text is published by its model-code body (ICC, IAPMO, or NFPA depending on the trade).
Are there any unusual electrical requirements in California?
California Electrical Code (Title 24, Part 3) is based on NEC with extensive state amendments. CEC 2025 (NEC 2023-based) is effective 2026-01-01.
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