California (CA)

California subcontractor insurance & compliance requirements

If you're a general contractor hiring subcontractors in California, here are the certificates and documents you should collect and keep current, and how TradeGuard tracks them automatically.

State contractor license
Required
OSHA
State OSHA plan
Contractor bond
Required

Documents to collect from subcontractors in California

The core compliance documents a GC should require and keep current for each sub.

CSLB LicenseRequired

Required for work over $500. Verify license number at cslb.ca.gov

General Liability COIRequired

Certificate of Insurance for General Liability coverage

Workers Compensation COIRequired

Certificate of Insurance for Workers Compensation coverage, required for any sub with employees

W-9 / EIN FormRequired

Required for tax reporting on payments over $600

Cal/OSHA ComplianceRecommended

California has additional injury prevention program requirements

OSHA 30 CertificationRecommended

Required for supervisors on many commercial and public projects

Debarment Check (SAM.gov)Recommended

Verify sub is not debarred from federal contracting

Performance BondConditional

Required on public works projects over $25,000

Payment BondConditional

Required alongside performance bond on public projects

Bid BondConditional

Required when bidding on public construction contracts; guarantees contractor will honor the bid if awarded

Surety Bond / License BondConditional

State-required surety bond posted as part of contractor license or registration; collect certificate from sub

Licensing

The CSLB licenses contractors for work over $500 (labor and materials combined). Over 50 license classifications. All subs must hold appropriate CSLB license.

OSHA

California operates an approved state OSHA plan. California has an approved state OSHA plan (Cal/OSHA), some of the strictest standards in the nation

Bonding

$25,000 contractor's bond required (as of 2023)

Agencies
  • CSLB: Contractors State License Board
  • Cal/OSHA: California Division of Occupational Safety and Health
  • DIR: Dept of Industrial Relations (Workers Comp & Public Works)
  • DLSE: Division of Labor Standards Enforcement

Summary for California

California has very strict requirements. All subs must be registered with DIR for public works. Cal/OSHA standards exceed federal OSHA. Workers comp required for all employees.

Track all of this automatically in California

TradeGuard collects every subcontractor's COI, license, and OSHA docs, flags California compliance gaps, and warns you before anything expires. Stop tracking it in a spreadsheet.

No credit card required · Cancel anytime · See how COI tracking works

California compliance FAQ

Do subcontractors need a contractor license in California?+

The CSLB licenses contractors for work over $500 (labor and materials combined). Over 50 license classifications. All subs must hold appropriate CSLB license.

Does California follow federal OSHA or a state OSHA plan?+

California runs its own OSHA-approved state plan. California has an approved state OSHA plan (Cal/OSHA), some of the strictest standards in the nation

Is a surety bond required for contractors in California?+

Yes. $25,000 contractor's bond required (as of 2023)

This page is general information, not legal advice. Requirements change; confirm current rules with the relevant California agencies before relying on them.

Other states