HVAC Technician License Requirements in Minnesota

License RequiredLast verified March 24, 2026
Agency And Exam

Issuing agency: Minnesota Department of Labor and Industry – Refrigeration and HVAC Licensing

Official licensing agency website

Exam provider: PSI

Reciprocity And License Levels

License levels

Refrigeration ApprenticeJourneyman RefrigerationMaster RefrigerationClass A Refrigeration ContractorClass B Refrigeration Contractor

Reciprocity states

None listed

Notes

Minnesota DLI licenses refrigeration and HVAC technicians and contractors. Journeyman requires 8,000 hours of experience under supervision; Master requires additional experience and exam. Class A contractor handles all refrigeration; Class B is restricted. PSI administers exams.

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