How to Get Your C-20 HVAC License in California: The Workers’ Comp Requirement Nobody Tells You About
You’ve studied hard, passed your exam, and submitted your C-20 HVAC license application to the CSLB. You’re ready to work. Then the CSLB asks for proof of workers’ compensation insurance — and your application stops cold. This is the moment that catches nearly every new C-20 applicant off guard. Your contractor exam prep course covered […]

