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.

Interconnection devices in Montana

Which codes apply? In Montana, interconnection devices fall under the 2023 NEC and the 2024 IRC.

Backup switches, gateways, meter adapters, and the device that islands a home. State record read Oct 20, 2026. Data as of Oct 26, 2026.

Codes that reach interconnection devices

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

  1. NECNational Electrical Code
    2023 NECPartial

    in force since Sep 26, 2026

    Where it reaches the product. Article 705 for the point of connection, 230 for the service, and 702 for optional standby systems.

    National Electrical Code (NFPA 70) under the Montana state building code · ARM 24.301.401

    The Montana NEC record
  2. IRCInternational Residential Code
    2024 IRCPartial

    in force since Sep 26, 2026

    Where it reaches the product. Chapter 37 and the electrical provisions that mirror the NEC.

    International Residential Code, 2024 Edition, as adopted in the Montana state building code · ARM 24.301.154

    The Montana IRC record

Montana laws that name interconnection devices

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

No Montana law or rule on the site names interconnection devices. 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