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CSLB classification · Asbestos/Environmental

ASB Asbestos Certification

A certification held alongside a licence class permitting asbestos-related work.

778
Active licences
533
With workers' comp
69%
142
Renewing in 90 days
16
Lapsed or suspended
210
Exempt
1
New in 90 days

Coverages a producer should expect

  • ›Contractor's pollution liability
  • ›Workers' comp

WCIRB classes usually assigned

Assigned from the specific operations; no single governing class.

Governing class depends on actual operations and payroll. Verify with the WCIRB classification search before quoting.

Carriers writing this class

Policies on file, statewide

  1. State Compensation Insurance Fund230
  2. Zurich American Insurance Co.46
  3. Great Divide Insurance Co.33
  4. Insurance Co. Of The West17
  5. Starr Indemnity & Liability Company12
  6. Cypress Insurance Co.11
  7. Travelers Property Casualty Co. Of America9
  8. Oak River Insurance Co.9
  9. American Casualty Co. Of Reading Pa6
  10. Carolina Casualty Insurance Co.6

ASB workers' comp renewals by month, California

29
Sep
75
Oct
26
Nov
30
Dec
76
Jan
25
Feb
43
Mar
50
Apr
38
May
31
Jun
48
Jul
33
Aug
6
Sep

Counties with the most

  1. Los Angeles County164
  2. Orange County92
  3. San Diego County72
  4. Alameda County46
  5. San Bernardino County38
  6. Sacramento County34
  7. Riverside County31
  8. County30
  9. Contra Costa County26
  10. Placer County23
  11. Fresno County22
  12. San Francisco County22

Related classes in Asbestos/Environmental

C-22 Asbestos Abatement ContractorHAZ Hazardous Substance Removal Certification

Frequently asked

What does a ASB licence allow a contractor to do?
A certification held alongside a licence class permitting asbestos-related work.
What insurance does a ASB contractor need?
Workers' compensation is required by law once they have employees; the CSLB suspends a licence without it. Beyond that, producers usually place: Contractor's pollution liability; Workers' comp.
How many ASB contractors are there in California?
778 active licences hold the ASB classification as of 2026-09-06; 533 (69%) have workers' comp on file and 210 are exempt.
When do ASB workers' comp policies renew?
142 renew within 90 days. January is the peak month.
Selling to ASB 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.
How the outbound worksSearch free

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 →

ASB Asbestos Certification: Insurance and WCIRB Classes | Birdray