CSLB classification · Earthwork/Paving
C-12 Earthwork and Paving Contractor
Grading, excavation, trenching and paving.
2,401
Active licences
1,430
With workers' comp
60%
351
Renewing in 90 days
47
Lapsed or suspended
876
Exempt
24
New in 90 days
Coverages a producer should expect
- ›Workers' comp
- ›General liability
- ›Heavy equipment floater
- ›Pollution
- ›Commercial auto
WCIRB classes usually assigned
- 6217 Excavation NOC
- 5506 Paving
Governing class depends on actual operations and payroll. Verify with the WCIRB classification search before quoting.
Carriers writing this class
Policies on file, statewide
- State Compensation Insurance Fund519
- Insurance Co. Of The West134
- Everest Premier Insurance Co.68
- Travelers Property Casualty Co. Of America58
- Pie Insurance Co.42
- Omaha National Casualty Co.39
- Zurich American Insurance Co.39
- National Liability And Fire Insurance Co.32
- Benchmark Insurance Co.27
- Great American Alliance Insurance Co.23
C-12 workers' comp renewals by month, California
67
Sep
196
Oct
66
Nov
67
Dec
177
Jan
91
Feb
122
Mar
135
Apr
106
May
125
Jun
129
Jul
90
Aug
10
Sep
Counties with the most
Related classes in Earthwork/Paving
Frequently asked
- What does a C-12 licence allow a contractor to do?
- Grading, excavation, trenching and paving.
- What insurance does a C-12 contractor need?
- Workers' compensation is required by law once they have employees; the CSLB suspends a licence without it. Beyond that, producers usually place: Workers' comp; General liability; Heavy equipment floater; Pollution; Commercial auto.
- How many C-12 contractors are there in California?
- 2,401 active licences hold the C-12 classification as of 2026-09-06; 1,430 (60%) have workers' comp on file and 876 are exempt.
- When do C-12 workers' comp policies renew?
- 351 renew within 90 days. October is the peak month.
- Which WCIRB class codes apply to C-12 work?
- Most often 6217 (Excavation NOC), 5506 (Paving). The WCIRB assigns the class from the actual operations and payroll, so verify per account in the WCIRB classification search.
Selling to C-12 contractors in California?
Birdray runs signal-timed outbound for one agency per territory: the companies behind these numbers, the person to email, and the renewal date, sent from your inbox. The database is free to search.
Sources: CSLB licence and workers' compensation records, California Secretary of State, OSHA, FMCSA, county permits. Aggregates only; no individual contractor appears on this page. "Active" means a CLEAR licence status. Renewal counts include policies on file with the CSLB expiring in the window. Refreshed weekly; this page as of 2026-09-06. Every field and its source →