C34

Pipeline Contractor Verification - Page 12

555 pipeline contractors checked against 6 data sources (Page 12 of 12)

About C34 License

Pipeline contractors for water, gas, and sewer lines.

555

Total Contractors

536

Active Licenses

70

Federal Records

Verify a Pipeline Contractor

How to Verify a Pipeline Contractor (C34) in California

California requires all contractors performing pipeline work valued at $500+ to hold a valid CSLB C34 license. Of the 555 licensed pipeline contractors in the state, 97% currently hold active licenses and 12.6% 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 Pipeline 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 Pipeline Work

Under California's "Controlling Employer" doctrine, general contractors face liability for subcontractor safety violations. For pipeline work specifically, 12.6% 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.