Codes of Record

What applies to my job?

Pick the state and the product you build, install, or inspect. The card below answers from each state’s own record.

Residential energy storage systems in Arizona

Which codes apply? In Arizona, residential energy storage systems fall under local adoption of the NEC and local adoption of the IRC. The IFC and NFPA 855 do not reach one- and two-family dwellings in Arizona.

Wall or floor units at a one- or two-family home, about 5 to 20 kWh each, up to 80 kWh in a garage or outdoors. State record read Oct 24, 2026. Data as of Oct 26, 2026.

Codes that reach residential energy storage systems

The edition Arizona enforces for each code that governs the product, and the part of the code that does.

  1. NECNational Electrical Code
    Local adoptionVerified

    Where it reaches the product. Article 706, energy storage systems, with 705 for the interconnection and 710 for stand-alone operation.

    A.R.S. 9-802 (municipal adoption by reference); A.R.S. 11-861 (county adoption by reference); A.R.S. 34-461 (public buildings)

    The Arizona NEC record
  2. IRCInternational Residential Code
    Local adoptionVerified

    Where it reaches the product. Section R328, stationary storage battery systems in dwellings.

    A.R.S. 9-802 (municipal adoption by reference); A.R.S. 11-861 (county adoption by reference); A.R.S. 34-461 (public buildings)

    The Arizona IRC record
  3. IFCInternational Fire Code
    2024 IFCVerified

    in force since Apr 13, 2026 · Statewide minimum

    Not one- and two-family dwellings. The state fire code standards for fire protection and exits exclude family dwellings with fewer than five residential dwelling units (A.R.S. 37-1383(A)(2)(e)).

    Arizona State Fire Code · A.A.C. R4-36-201 (amended 32 A.A.R. 558); A.R.S. 37-1383(A)(2)

    The Arizona IFC record
  4. NFPA 855NFPA 855, Standard for the Installation of Stationary Energy Storage Systems
    2023 NFPA 855Verified

    in force since Apr 13, 2026 · Through the IFC, chapter 12 · Edition derived from the fire code the state adopts

    Not one- and two-family dwellings. The state fire code standards for fire protection and exits exclude family dwellings with fewer than five residential dwelling units (A.R.S. 37-1383(A)(2)(e)).

    Arizona State Fire Code (A.A.C. R4-36-201 incorporating the 2024 International Fire Code) · A.A.C. R4-36-201 (Supp. 26-1); 32 A.A.R. 558

    The Arizona NFPA 855 record

Arizona laws that name residential energy storage systems

On the site: eight laws, rules, orders, and bills, newest first.

Law or ruleKindStageDateWhat it does
SB 1419Laws 2026, Chapter 175BillPartialIn forceSep 12, 2026Requires residential solar contracts to disclose costs, savings assumptions, and warranties, including inverter and battery warranties. Source (opens in a new tab)
A.A.C. R4-36-201Arizona Administrative Code, Title 4, Chapter 36RulePartialIn forceApr 13, 2026Adopts the 2024 International Fire Code, with state amendments, as the State Fire Code. Source (opens in a new tab)
Chino Valley Ordinance 2025-956Ordinance No. 2025-956Local ordinancePartialIn forceSep 23, 2025Allows rooftop solar on homes and parking structures, and battery storage at homes and businesses only when stored energy is used on site. Source (opens in a new tab)
Arizona Public Service battery pilotNews release, Mar 13, 2025Commission orderPartialIn forceMar 12, 2025Approves an Arizona Public Service pilot that pays up to 5,000 home battery owners $110 per kW a year for up to 60 grid events. Source (opens in a new tab)
A.A.C. R4-9-102Arizona Administrative Code, Title 4, Chapter 9RulePartialIn forceNov 5, 2017Defines commercial contractor license classes; electrical work under 600 volts falls under C-11, and no class covers solar electric or battery work specifically. Source (opens in a new tab)
A.R.S. 44-1763Arizona Revised StatutesStatutePartialIn force–Requires sale and lease agreements for distributed energy generation systems to disclose major components, such as batteries, and their warranties. Source (opens in a new tab)
Salt River Project requirementsResidential Distributed Energy Resource Program RequirementsProgram rulePartialIn force–Requires battery systems in Salt River Project's residential program to be Listed to UL 9540, with inverters that meet UL 1741 and IEEE 1547. Customers must take a customer generation price plan and sign an interconnection agreement. Source (opens in a new tab)
Tucson Electric Power interconnectionResidential interconnectionProgram rulePartialIn force–Requires utility approval before construction and permission to operate before a home solar or storage system is energized. Source (opens in a new tab)

Every Arizona law on residential energy storage systems, with filters

For information only. Your local building or fire official decides which code applies. We check state records often but can miss a recent change, so confirm with your official before you design, permit, or install. Terms of use