Minnesota rules for access control installers

In a lot of states, alarm installers answer to a security board. Minnesota places them under its electrical licensing law, which the Department of Labor and Industry (DLI) administers. Under the law, this wiring is called technology circuits or systems.

Under Minnesota Statutes 326B.31, those circuits are class 2, class 3 or class 4 and serve remote control, signaling, control, alarm and audio functions. The National Electrical Code identifies class 2 and class 3 as the power-limited circuit categories. Access control isn't listed by name, but reader, keypad and lock circuits running on class 2 or class 3 power fall under that description.

The lead person carries a Power Limited Technician license. Without one, Section 326B.33 stops anyone from designing or putting in technology circuits, unless they qualify for an exemption. To apply, hold a 4-year electrical degree or have 36 months of experience, and a 2-year electrical course can substitute for as many as 12 months.

The business operates under a Technology System Contractor license. The individual listed as the responsible licensee has to be a power limited technician or a master electrician. The state's DLI license page shows a $188 fee for a 2-year term.

• Bond: every contractor posts a $25,000 bond with the state.
• Your general liability must cover at least $100,000 each time, $300,000 overall for bodily injury, plus $50,000 in property damage.
• Power limited technicians must earn 16 hours of continuing education before renewal every cycle.

Most class 2 and class 3 wiring can be done by people who work for a licensed technology system contractor, even if they hold no individual license. A power limited technician has to oversee them. At most 3 unlicensed workers may be supervised by a single licensed person on technology jobs.

There are limits to the exemption. Class 4 circuits are excluded, along with hazardous areas and class 2 wiring inside cabinets that also contain unprotected higher-power circuits. Ask if the panel holding your door controllers also houses other equipment.

You can reach DLI's license and registration lookup through the iMS system. An account isn’t required: select continue as guest and type the full license number.

The 2026 NEC was adopted by the Board of Electricity. The 2023 NEC applies to permits submitted before Aug. 17, 2026; permits after that date use the 2026 edition.

Rules that govern locked exits are set by the 2020 Minnesota State Building Code, which took effect March 31, 2020. A city can enforce it only after adopting the code through a local ordinance, so check with your city about who handles inspections.

It’s allowed only to a point. Technology circuits that belong to the employer can be repaired by a maintenance person under a power limited technician’s supervision. You can’t extend any wiring, technology included, as part of maintenance.