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.