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California HAZ Hazardous Substance Removal Certification License
California has 1,785 active HAZ Hazardous Substance Removal Certification holders in the state file as of 2026-10-301, the 25th-largest of 64 classes with at least 200 holders. 53 of them expire by 2026-12-29.
- Active holders
- 1,785
- 0.8% of active California licenses
- Expiring by 2026-12-29
- 53
- 3.0% of holders
- Median bond on file
- $25,000
- 1,784 bonds
- Workers' comp exempt
- 25.8%
- of 1,785 with WC status
How many HAZ contractors are exempt from workers' comp?
460 of 1,785 active HAZ holders with a recorded status (25.8%) filed an exemption1, against 48.7% across all California classes.
How do you check a HAZ license?
Search by license number or business name on the California license lookup, which reads the same state file.
Other California license classes
Sources
- CA CSLB License Master (cslb.ca.gov data portal) (cslb.ca.gov, 2026-10-30)