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.

Commercial and utility energy storage systems in Connecticut

Which codes apply? In Connecticut, commercial and utility energy storage systems fall under the 2020 NEC, the 2021 IFC, the 2021 IBC, and the 2020 NFPA 855 through the fire code.

Cabinets and containers at a business, a campus, or a substation. State record read Oct 24, 2026. Data as of Oct 26, 2026.

Codes that reach commercial and utility energy storage systems

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

  1. NECNational Electrical Code
    2020 NECVerified

    in force since Oct 1, 2022

    Where it reaches the product. Article 706, with 705 for the interconnection.

    2022 Connecticut State Building Code (electrical, 2020 NFPA 70) · Conn. Gen. Stat. 29-252 and 29-252b; 2022 Connecticut State Building Code (CSBC)

    The 2023 NEC is proposed.

    The Connecticut NEC record
  2. IFCInternational Fire Code
    2021 IFCVerified

    in force since Oct 1, 2022

    Where it reaches the product. Chapter 12, section 1207, and the operational permit.

    2022 Connecticut State Fire Safety Code (Part III) and 2022 State Fire Prevention Code · Conn. Gen. Stat. 29-292 and 29-292a (fire safety code); 29-291 and 29-291e (fire prevention code)

    The 2024 IFC is proposed.

    The Connecticut IFC record
  3. IBCInternational Building Code
    2021 IBCVerified

    in force since Oct 1, 2022

    Where it reaches the product. Occupancy, construction type, and separation for the building that holds the system.

    2022 Connecticut State Building Code · Conn. Gen. Stat. 29-252 and 29-252b; 2022 CSBC

    The 2024 IBC is proposed.

    The Connecticut IBC record
  4. NFPA 855NFPA 855, Standard for the Installation of Stationary Energy Storage Systems
    2020 NFPA 855Verified

    in force since Oct 1, 2022 · Through NFPA 1, chapter 52 · Edition derived from the fire code the state adopts

    Where it reaches the product. The whole standard: siting, size and separation, fire control, explosion control, and commissioning.

    2022 Connecticut State Fire Prevention Code (based on NFPA 1, 2021 edition) · Conn. State Fire Prevention Code (2022)

    The 2023 NFPA 855 is proposed.

    The Connecticut NFPA 855 record

Connecticut laws that name commercial and utility energy storage systems

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

No Connecticut law or rule on the site names commercial and utility 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