California's Workers' Comp Mandate Is Coming for Every Contractor: SB 216 and the 2028 Deadline
Michael Senderovich
Michael Senderovich, MBA, is president of Six-Thirteen Business Insurance, a commercial brokerage that places coverage for contractors and tradespeople across California, Texas, the Carolinas, Missouri, Colorado, and Louisiana. He has spent more than a decade in commercial lines and holds an MBA from the University of Redlands.
California's Workers' Comp Mandate Is Coming for Every Contractor: SB 216 and the 2028 Deadline
If you hold a California contractor license and you've been skipping workers' comp because you work alone, that window is closing. SB 216, signed in September 2022, requires every licensed contractor in the state to carry workers' compensation insurance, whether or not they employ a single person. Some trades are already in. The rest have a hard date coming.
This is a bigger deal for HVAC than for most classifications, and I'll explain why below. But first, the timeline, because the deadline everyone circled has moved.
What SB 216 Actually Changed
California used to let a licensed contractor with no employees file a workers' comp exemption. You signed a form, you skipped the policy, you kept your license. SB 216 ends that arrangement in phases.
Phase 1 took effect January 1, 2023. Four classifications lost the exemption immediately, employees or not: C-8 Concrete, C-20 Warm-Air Heating, Ventilating and Air-Conditioning, C-22 Asbestos Abatement, and D-49 Tree Service. The state singled out these trades because the injury exposure is high even for a one-person shop. If you carry a C-20, you've been required to hold a policy since the start of 2023.
Everyone else was supposed to follow on January 1, 2026. That date moved. Follow-on legislation (SB 1455) pushed the all-remaining-contractors deadline to January 1, 2028. So a solo appliance repair operator working under a different classification has more runway, but not an exemption forever.
There's a step in between that's easy to miss. Under SB 1455, the CSLB has to stand up an exemption-verification process by January 1, 2027, with audits and eligibility checks. If you're claiming an exemption, expect the Board to verify it around then, so keep your paperwork straight before the 2028 mandate even lands.
Why HVAC Sits at the High End
Workers' comp isn't priced as one flat number. It's rated by class code, and each code carries a rate per $100 of payroll based on how often and how badly that kind of work hurts people.
HVAC installation, service, and repair is rated under class code 5537. It covers the ladders, the rooftop units, the sheet metal, the refrigerant lines, the electrical. It's one of California's higher-rated construction classes, and California workers' comp rates run high generally. Rates aren't fixed by a single authority: the WCIRB publishes advisory pure premium rates and carriers set their own on top of that, so premium turns on your payroll, experience modifier, and insurer. For a tech earning $70,000, comp can easily run a few thousand dollars a year for that worker alone.
Household appliance service and repair is rated separately, under class code 9519. Different work, different injury pattern, different rate. If your shop does both HVAC and appliance work, a good broker will split payroll across the correct codes rather than dumping everything into the more expensive one. That split is real money.
If your carrier has been rating all your payroll under a single code because it's simpler, ask for a review. Appliance service payroll rated as HVAC field work costs you more than it should. Class codes 5537 and 9519 are separate for a reason.
What to Do Before the Dates Hit
Start with which bucket you're in. C-20 holders are already required to carry coverage, so if you've been running without it, you're out of compliance now, not in 2028.
If you're a solo operator in another classification, don't wait for the 2028 mandate to shop. Get a quote this year so you know the number, and mark January 1, 2027 on the calendar, since that's when the CSLB's exemption-verification process is due to be in place if you plan to claim an exemption for as long as you can. The CSLB posts its bond and workers' comp requirements on its license-maintenance pages, and those requirements are what your renewal is checked against.
The enforcement mechanism is the part people underrate. This isn't a fine you can argue about later. Non-compliance can suspend the license, and a suspended license can't legally pull permits or bid work. For a contractor, the license is the business.
For the broader picture on what a California appliance license requires and the coverage that rides with it, see our guide on appliance repair licensing and insurance in California. And for where general liability fits alongside workers' comp in an HVAC shop's total insurance cost, see our HVAC general liability cost guide.
Two dates. January 1, 2027 for the exemption verification, January 1, 2028 for the mandate. If you carry a C-20, the date that matters already passed.
Sources
- California Legislative Information. "SB-216 Workers' compensation insurance: contractors" (2021–2022 session). leginfo.legislature.ca.gov
- Contractors State License Board. "Bond Requirements." cslb.ca.gov
- General Liability Insure. "Workers Comp Class Code 5537, Heating, Ventilation, Air Conditioning and Refrigeration Systems." generalliabilityinsure.com