What are the mandatory COI insurance limits for a Tree Trimming, Crane & Arborist in California?

Standard general contractors and commercial projects in California require $1,000,000 per occurrence, $2,000,000 general aggregate, and $2,000,000 umbrella coverage per California Contractors State License Board (CSLB) guidelines.

Why do general contractors reject ACORD 25 certificates?

The top 3 reasons for certificate rejection are: (1) Missing completed operations additional insured endorsements (CG 20 37), (2) General aggregate limit set below project specifications, and (3) Fatal Action Over or Labor Law 240 exclusion endorsements.

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Tree Trimming, Crane & Arborist COI Requirements in California

Verified compliance checklist for subcontractors operating in California under California Contractors State License Board (CSLB).

Statutory Policy Minimums

Coverage Type	Mandatory Specification
General Liability (Each Occurrence)	$1,000,000
General Aggregate Limit	$2,000,000
Umbrella / Excess Liability	$2,000,000
Workers' Compensation	Mandatory for all workers & specific trades (SB 216 roofing/concrete)
Regulatory Oversight	California Contractors State License Board (CSLB)

Mandatory High-Risk Endorsements

Subcontractors in Tree Trimming, Crane & Arborist are routinely exposed to exclusions that leave General Contractors liable. Verify these endorsements are attached:

🛡️ Utility Line Clearance Endorsement🛡️ Falling Tree / Structure Impact Coverage🛡️ Logger / Tree Trimmer Workers Comp Classification

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