C31

Traffic Control Contractor Verification - Page 10

462 traffic control contractors checked against 6 data sources (Page 10 of 10)

About C31 License

Construction zone traffic control contractors.

462

Total Contractors

449

Active Licenses

72

Federal Records

Verify a Traffic Control Contractor

How to Verify a Traffic Control Contractor (C31) in California

California requires all contractors performing traffic control work valued at $500+ to hold a valid CSLB C31 license. Of the 462 licensed traffic control contractors in the state, 97% currently hold active licenses and 15.6% 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 Traffic Control 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 Traffic Control Work

Under California's "Controlling Employer" doctrine, general contractors face liability for subcontractor safety violations. For traffic control work specifically, 15.6% 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.

Data sourced from California Contractors State License Board and federal databases. Updated weekly. For official verification, check directly with CSLB.