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State Requirements

HVAC License Requirements
in California

Everything you need to know about HVAC licensing in California — from required certifications and exams to experience thresholds and application steps.

License RequiredEPA 608 Required

Key Takeaways

California requires a state HVAC license, but a federal EPA Section 608 certification is mandatory for anyone handling refrigerants. Licensing typically requires up to 4 years of documented experience.

  • State license: Required
  • EPA 608 certification: Required (federal)
  • 1 license type available
  • Regulated by: Contractors State License Board (CSLB)
License Types
California HVAC Licenses
California offers 1 license type for HVAC professionals. Review the requirements for each below.
C-20 HVAC Contractor License
Required for contractors performing warm-air heating, ventilating, and air-conditioning work.
Experience: 4 yearsExam required: Yes
Pass the C-20 trade exam and law/business exam
Demonstrate at least 4 years of journeyman-level experience
Post a contractor bond and provide proof of insurance
Regulatory Authority
Regulatory Body
Contractors State License Board (CSLB)
Visit Official Website →
Additional Notes
California requires a C-20 license for HVAC contractors. Technicians working under a licensed contractor do not need an individual state license. Local permits are required for most installations.
Related
California Salary Data →California HVAC Programs →California Apprenticeships →
Next Step
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California.
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