Low-voltage licensing
Minnesota
Minnesota regulates electrical work through the Department of Labor and Industry. The Power Limited Technician (PLT) license is the specific category for low-voltage, signaling, sound, and intercom systems. A separate Technology Systems Contractor business license is required to operate as a company. Minnesota uniquely separates the individual technician credential from the business contractor credential more strictly than most states.
Regulatory agency
Minnesota Department of Labor and Industry
License classifications
The license types relevant to low-voltage work in Minnesota.
PLT - Power Limited Technician
Low-voltage, signaling, communications, sound, intercom, fire alarm. The standard individual license for low-voltage technicians.
Exam requiredTSC - Technology Systems Contractor
Business license to perform technology systems / low-voltage work. Requires a PLT-licensed responsible individual.
State-wide requirements
- Workers' compensation
- Required
- Renewal cycle
- Every 2 years
Common pitfalls
Mistakes we see installers make when navigating Minnesota licensing.
- Minnesota requires the INDIVIDUAL PLT license AND the BUSINESS TSC license separately. Holding only PLT means you can work as a technician but not contract.
- PLT requires documented experience (typically 36 months under a licensed PLT or licensed electrician) before sitting for the exam.
- Minneapolis and St. Paul each have local permit and inspection requirements layered on top of the state license.
Sources
Last verified May 23, 2026. See something out of date? Email us.
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Disclaimer: This page summarizes public regulatory information for the convenience of low-voltage installers. It is not legal advice. State requirements change. Always verify current rules with the state agency before applying for, renewing, or relying on a license.