How to Get Your HVAC Certification in California
Governing body, experience requirements, exam details, and step-by-step instructions for California. Last verified: February 2026.
Quick Facts
Hours Required
Varies by path
Exam
EPA 608 + CSLB C-20 Exam
Fee Range
$20–$330 [VERIFY]
Governing Body
EPA / CSLB (C-20)
Requirements
California does not have a statewide HVAC technician certification separate from the EPA 608. All technicians who purchase or handle refrigerants must hold an EPA 608 certification. For HVAC contractors, the California Contractors State License Board (CSLB) issues a C-20 Warm-Air Heating, Ventilating and Air-Conditioning classification. The C-20 requires 4 years of journey-level experience in the previous 10 years and passing both a trade and law/business exam.
Steps to Apply
- 1
Obtain your EPA 608 certification (Type II or Universal recommended) from an EPA-approved testing provider.
- 2
Accumulate 4 years of journey-level HVAC experience if pursuing a CSLB C-20 contractor license.
- 3
Submit a CSLB C-20 license application with proof of experience, fingerprint card, and pay the application fee.
- 4
Pass the CSLB C-20 trade examination and law/business examination administered by PSI.
- 5
Receive your CSLB C-20 contractor license; renew every 2 years with required continuing education.
Exam Details
EPA 608 Type I, II, III, or Universal certifications are administered by EPA-approved test centers (including ESCO Group and Mainstream Engineering). The CSLB C-20 contractor exams (trade + law/business) are administered by PSI. Journeyman-level work does not require a CSLB license but does require EPA 608 for refrigerant handling.
Fees & Costs
Estimated total: $20–$330 [VERIFY]
EPA 608 exam fees vary by provider, typically $20–$75. CSLB C-20 application fee is $330 [VERIFY]. Fingerprinting and background check fees also apply for the CSLB license. Journeyman HVAC technicians only need to budget for the EPA 608 exam cost.
Frequently Asked Questions
Do I need more than an EPA 608 to work HVAC in California?
For journeyman-level work (working under a licensed contractor), EPA 608 is the primary federal requirement. To operate as an HVAC contractor and pull permits, you need a CSLB C-20 license.
What is the difference between EPA 608 Type II and Universal?
Type II covers high-pressure systems (the most common in residential and commercial HVAC). Universal certification covers Type I (small appliances), Type II (high-pressure), and Type III (low-pressure) systems and is the most versatile option.
Does California have its own HVAC refrigerant regulations?
Yes. California has additional refrigerant management requirements under CARB regulations, including record-keeping for refrigerant purchases and leak inspections for larger equipment. [VERIFY current CARB refrigerant regulations]
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HVAC Prep
Refrigerant charge calculator + EPA 608 questions
Also Available
HVAC Certification in other states
Other licenses in California