How many hazardous substance removal contractors are licensed in California?

California has 1,871 contractors with a HAZ (Hazardous Substance Removal) license from the Contractors State License Board. 1,817 (97%) hold active licenses. SiteVetter checks each against SAM.gov, OSHA, DOL, and EPA databases.

What percentage of hazardous substance removal contractors have federal violations?

12.9% of California hazardous substance removal contractors (241 out of 1,871) have at least one record in federal databases. These include SAM.gov debarments, DOL wage violations, OSHA safety citations, and EPA environmental violations.

Verify Hazardous Substance Removal Contractors (HAZ) - Page 4 | CSLB + Federal Check

Q: What does a HAZ license cover in California?

A California HAZ license covers hazardous substance removal contractors. Any contractor performing hazardous substance removal work valued at $500 or more must hold this license. The CSLB issues and regulates all contractor licenses in the state.

How to Verify a Hazardous Substance Removal Contractor (HAZ) in California

California requires all contractors performing hazardous substance removal work valued at $500+ to hold a valid CSLB HAZ license. Of the 1,871 licensed hazardous substance removal contractors in the state, 97% currently hold active licenses and 12.9% have at least one federal compliance record.

Manual vetting takes 45+ minutes per contractor and routinely misses violations in databases most people don't know to check. SiteVetter runs CSLB status, SAM.gov debarment, DOL wage violations, OSHA safety citations, and EPA environmental records in seconds—creating a timestamped compliance artifact.

Verification Checklist for Hazardous Substance Removal Contractors

Verify the contractor license is active and in good standing
Request proof of insurance and bonding
Get at least 3 written quotes before selecting a contractor
Check federal databases: SAM.gov, OSHA, DOL, and EPA records
Confirm bond: California requires $25,000+ contractor bond (SB 607)

Why Verification Matters for Hazardous Substance Removal Work

Under California's "Controlling Employer" doctrine, general contractors face liability for subcontractor safety violations. For hazardous substance removal work specifically, 12.9% of licensed contractors have federal records that a standard CSLB license check wouldn't reveal. SiteVetter's 5-database check catches what a single-source verification misses.

Hazardous Substance Removal Contractor Verification - Page 4

About HAZ License

Hazardous Substance Removal Contractors

How to Verify a Hazardous Substance Removal Contractor (HAZ) in California

Verification Checklist for Hazardous Substance Removal Contractors

Why Verification Matters for Hazardous Substance Removal Work