HVAC Technician License Requirements in California
License RequiredLast verified March 24, 2026
Agency And Exam
Issuing agency: California Contractors State License Board
Official licensing agency website
Exam provider: PSI
Reciprocity And License Levels
License levels
C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor
Reciprocity states
None listed
Notes
California CSLB issues the C-20 license for HVAC contractors. Individual technicians are not state-licensed separately, but the contractor/qualifier must pass trade and law exams. EPA 608 certification is required for refrigerant handling. No statewide journeyman license for HVAC; local permits may apply.