C-36 compliance in Corona — CSLB data
Corona: 109 active C-36 licenses per CSLB (September 2026). Workers' comp on file — 55%. Exempt — 39%.
Suspensions today: 1 workers' comp, 4 bond.
Riverside County totals: 1,186 C-36 licenses; 12 suspended for workers' comp, 36 for bonds.
Median time licensed: 10.0 years. 16% are under three years old; 28% have 20+ years. 7 were issued in the last 12 months.
5% are LLCs, which carry extra CSLB insurance and bond rules (below).
What CSLB requires for a C-36 license
- License bond: $25,000 on file with CSLB.
- Workers' comp: required with employees; mandatory for all active licenses from January 1, 2028 (SB 1455).
- LLC licenses: $1M+ liability insurance and a $100,000 employee/worker bond.
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Frequently asked questions
How many C-36 licenses in Corona are suspended?
As of September 2026, 1 for workers' comp and 4 for bond issues, out of 109 active C-36 licenses based in Corona.
How many new C-36 licenses were issued in Corona last year?
7 in the 12 months to September 2026. Each needed a $25,000 bond on file before CSLB issued the license.
Do C-36 plumbers need workers' comp?
Yes if you have employees. With no employees you can currently file an exemption; beginning January 1, 2028, CSLB will require workers' comp for all active licenses under SB 1455, except joint ventures.