Birdray

CSLB classification · Asbestos/Environmental

HAZ Hazardous Substance Removal Certification

Certification permitting hazardous substance removal and remedial work.

1,788
Active licences
1,255
With workers' comp
70%
340
Renewing in 90 days
27
Lapsed or suspended
467
Exempt
3
New in 90 days

Coverages a producer should expect

  • ›Contractor's pollution liability
  • ›General liability with pollution carve-back
  • ›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 Fund417
  2. Zurich American Insurance Co.97
  3. Travelers Property Casualty Co. Of America71
  4. Insurance Co. Of The West61
  5. Great Divide Insurance Co.41
  6. Hartford Casualty Insurance Co.23
  7. Federal Insurance Co.22
  8. National Union Fire Insurance Co. Of Pittsburgh, Pa22
  9. Starr Indemnity & Liability Company21
  10. Everest Premier Insurance Co.19

HAZ workers' comp renewals by month, California

53
Sep
199
Oct
71
Nov
59
Dec
164
Jan
61
Feb
104
Mar
126
Apr
79
May
95
Jun
109
Jul
72
Aug
13
Sep

Counties with the most

  1. Los Angeles County316
  2. Orange County206
  3. San Diego County113
  4. County102
  5. Riverside County89
  6. Alameda County87
  7. San Bernardino County85
  8. Sacramento County79
  9. Contra Costa County65
  10. Kern County51
  11. Santa Clara County46
  12. Ventura County42

Related classes in Asbestos/Environmental

C-22 Asbestos Abatement ContractorASB Asbestos Certification

Frequently asked

What does a HAZ licence allow a contractor to do?
Certification permitting hazardous substance removal and remedial work.
What insurance does a HAZ 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; General liability with pollution carve-back; Workers' comp.
How many HAZ contractors are there in California?
1,788 active licences hold the HAZ classification as of 2026-09-06; 1,255 (70%) have workers' comp on file and 467 are exempt.
When do HAZ workers' comp policies renew?
340 renew within 90 days. October is the peak month.
Selling to HAZ 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 →

HAZ Hazardous Substance Removal Certification: Insurance and WCIRB Classes | Birdray