California HVAC License Requirements
California doesn't license individual HVAC technicians. HVAC contractors need a state license from the Contractors State License Board. Some cities license HVAC technicians. Anyone who handles refrigerant also needs federal EPA 608 certification.
Contractor only · By BrazeJobs Team · Updated
License tiers
| Apprentice | No state license |
| Journeyman | No state license |
| Master | No state license |
| Contractor | CSLB C-20 HVAC; C-38 Refrigeration |
Requirements
| Contractor experience | 4 years journey-level (last 10 years) |
| Exam | Law & business + trade exams |
| Minimum age | 18 |
| Renewal | 2 years |
| Continuing education | None |
| Local license | Workers may need local license |
| Board | Contractors State License Board |
Federal: EPA 608 certification
| Rule | Federal certification required to service or dispose of refrigerant equipment and to buy refrigerant |
Who: anyone who maintains, services, repairs or disposes of equipment that could release refrigerant (attaching gauges, adding or removing refrigerant). Types: Type I (small appliances), Type II (high- and very high-pressure), Type III (low-pressure), Universal (all types). Expiry: credentials do not expire. Buying refrigerant: sellers may sell only to certified technicians or employers of one, with limited exceptions (e.g. small cans of MVAC refrigerant). EPA does not issue cards; approved certifying organizations do. Universal requires a proctored core exam.
Exam
| Exam provider | PSI (for CSLB) |
| Format | Closed book |
| Time | 3.5 hours per exam |
| Bulletin date | 2026-04-01 |
Licensed in another state or the military
| Reciprocity | None |
| Military spouses | Expedited licensure and waiver of initial application and license fee for spouses/domestic partners of active-duty members (since July 1, 2022) |
CSLB also expedites applications for service members in SkillBridge. DCA rule applies to all its boards including CSLB.
- Source: dca.ca.gov · checked November 6, 2026
- Source: cslb.ca.gov · checked November 6, 2026
Apprenticeship
| Registering agency | U.S. Department of Labor Office of Apprenticeship (no state agency) |
Programs register through the Office of Apprenticeship; use the Partner Finder for local sponsors.
- Source: apprenticeship.gov · checked November 6, 2026
Mechanical code
| Code in force | 2025 California Mechanical Code (Title 24, Part 4) |
- Source: dgs.ca.gov · checked November 5, 2026