HVAC licensing in Minnesota

Minnesota has no state HVAC license — and says so in both directions: no state license for mechanical contractors, and 'no state license requirement for individual employees of mechanical contractors.' The cards that matter are the TWIN CITIES' — and they honor each other: a Saint Paul Certificate of Competency transfers to Minneapolis for $30.00 per trade, and Saint Paul accepts a Minneapolis Master's Card in return.

Carded in one, you are not starting over in the other.

Nothing pending at state level. Whether Minneapolis or Saint Paul allow work while a competency-card application processes was not researched — the $30 reciprocal transfer is an expedited route, not a temporary permission.

The city exams are the real gate: Minneapolis requires a minimum of FOUR YEARS of work experience before you may even apply for its Certificate of Competency; Saint Paul's Warm Air/Ventilation trade license wants its own competency certificate (Master Warm Air and/or Ventilation) or a current Minneapolis Master's Card.

Your personal floor is EPA 608 — plus one real state credential nearby: Minnesota DOES license BOILER ENGINEERS as individuals (Chief through Special Engineer grades, written exam), so boiler OPERATION is a licensed activity even though HVAC installation is not.

No state apprentice card for HVAC. Experience is proven to the city — four years before a Minneapolis application. Registered apprenticeship runs through DLI's apprenticeship division.

Minneapolis and Saint Paul are mapped, with the master tier (Master Warm Air, Master Ventilation) living at city level. Duluth, Rochester, Bloomington and St. Cloud are unmapped. Confirm the destination city before a placement outside the Twin Cities.

The business obligation is a BOND, not a license: $25,000 filed with DLI (Minn. Stat. 326B.197) before contracting gas, heating, ventilation, cooling, air conditioning, fuel burning or refrigeration work — $100 fee, two years. A financial filing, not a skills test. Plumbing and electrical are separately state-licensed; the HVAC all-clear covers HVAC only.