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    Electrical Code Adoption

    Arizona Electrical Code: NEC 2017

    Arizona follows NEC 2017 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 2017
    Last verified
    2026-05-29

    Note: No statewide NEC adoption in Arizona — local jurisdictions adopt independently and editions vary widely. Verify with the AHJ.

    Related resources for Arizona

    Frequently Asked Questions

    What electrical code does Arizona use?

    Arizona currently follows NEC 2017 for electrical work. Always confirm the in-force edition with the local Authority Having Jurisdiction (AHJ) — county or city amendments can apply.

    Do I need a permit for electrical work in Arizona?

    Most electrical work in Arizona — 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 Arizona 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 2017 text is published by its model-code body (ICC, IAPMO, or NFPA depending on the trade).

    Are there any unusual electrical requirements in Arizona?

    No statewide NEC adoption in Arizona — local jurisdictions adopt independently and editions vary widely. Verify with the AHJ.

    Reference guidance only — adoption editions and local amendments vary by city or county. Always confirm requirements with your local Authority Having Jurisdiction (AHJ) before designing, permitting, or constructing.

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