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.

State

Residential energy storage systems in Iowa

Which codes apply? In Iowa, residential energy storage systems fall under the 2023 NEC, the 2024 IRC (local option), the 2024 IFC, and the 2023 NFPA 855 through the fire code.

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 Iowa enforces for each code that governs the product, and the part of the code that does.

NECNational Electrical Code

2023 NECVerified

in force since Jul 1, 2025

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

State electrical code (481 IAC chapter 404) · 481 IAC 404.3; Iowa Code 103.1(12A) and 103.1B (2026 Iowa Acts, HF 2800)

The 2026 NEC is proposed.

The Iowa NEC record
IRCInternational Residential Code

2024 IRCVerified

in force since Sep 10, 2025 · Local adoption

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

State building code (481 IAC chapter 301) · 481 IAC 301.8 (Iowa Code 103A.7)

The Iowa IRC record
IFCInternational Fire Code

2024 IFCVerified

in force since Sep 10, 2025 · Statewide, with exceptions

Where it reaches the product. Chapter 12, energy systems, section 1207, which also points to NFPA 855.

State fire code (481 IAC chapter 280) · 481 IAC 280.8; ARC 9472C

The Iowa IFC record
NFPA 855NFPA 855, Standard for the Installation of Stationary Energy Storage Systems

2023 NFPA 855Verified

in force since Sep 10, 2025 · Through the IFC, chapter 12 · Edition derived from the fire code the state adopts

Where it reaches the product. Chapter 15, one- and two-family dwellings and townhouses.

State fire code, 481 IAC 280.8 (2024 IFC with Iowa amendments) · 481 IAC 280.8(1); Iowa Code 10A.511

The Iowa NFPA 855 record

Coming next

NEC
The 2026 NEC is proposed.
The Electrical Examining Board voted May 14, 2026, to approve the 2026 code without amendments; the comment period closed Sep 22, 2026, and the notice states no effective date.
Partial

State or local

NECLocal governments may not adopt a local electrical code more restrictive than the NEC (Iowa Code 103.1C).
IRCIowa leaves the IRC to cities and counties.
IFCIowa applies the IFC statewide, with exceptions the record lists.
IFCBuildings in jurisdictions whose local fire ordinance adopts any edition of the IFC, any edition of NFPA 1 or the 1997 Uniform Fire Code and enforces it are treated as compliant.

Cities and counties can amend a statewide code, so confirm the edition in force with the local official.

Go deeper

Iowa laws that name residential energy storage systems

Statutes, rules, and commission orders are tracked state by state.

No Iowa law or rule on the site names residential energy storage systems. The product page shows the states that have one.

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