ISO CG 20 10 & CG 20 37 Additional Insured Completed Operations
Over 75% of construction defect and bodily injury lawsuits occur AFTER the project is finished ("Completed Operations"). Yet brokers and subcontractors routinely deliver Certificates of Insurance (COIs) carrying only ISO CG 20 10 (Ongoing Operations) or ISO CG 20 33 (Automatic Additional Insured — Direct Written Contract Required), while omitting ISO CG 20 37 (Completed Operations). Worse, upstream MSAs and design-build contracts combine strict 12/19 ISO endorsement demands with overbroad "Work Made for Hire" IP seizures.
General Contractor Left With $320,000 Uninsured Water Defect Claim Due to Missing CG 20 37 & CG 22 94 Exclusion
A GC collected a subcontractor COI showing "Additional Insured: Yes," but the actual binder only attached ISO CG 20 10 (Ongoing Operations)—omitting ISO CG 20 37 (Completed Operations)—and the GC’s own GL policy contained ISO CG 22 94 deleting the Subcontractor Exception.
EndorseIQ™ mandates both ISO CG 20 10/20 38 and CG 20 37 (Completed Operations), strikes ISO CG 22 94 and CG 21 39, and enforces Primary & Non-Contributory (CG 20 01) vertical exhaustion.
Check Your Full Contract PDF for Cross-Section Overrides (Free 60s Scan)
Fixing one clause alone often fails when a buried definition, exhibit, or survival clause elsewhere in your Construction GL & Subcontractor neutralizes your protection. Drop your PDF or Word (.docx) below for an instant, 100% anonymous cross-section audit.
“BLANKET ONGOING & COMPLETED OPERATIONS ADDITIONAL INSURED (ISO CG 20 10 + CG 20 37 / CG 20 38): (a) Commercial General Liability policy is endorsed with both ISO CG 20 10 (or CG 20 38 Blanket without direct privity limitation) for Ongoing Operations AND ISO CG 20 37 for Products-Completed Operations Hazard, maintained through the applicable state statute of repose; (b)
What to Say to the GL Carrier & Upstream GC / Owner Requirements
"A COI checkmark alone doesn’t trigger coverage—we need the actual ISO CG 20 10 (or CG 20 38 covering upstream owners without direct contract privity) AND ISO CG 20 37 Completed Operations endorsements attached to the binder, alongside our standard background IP carve-out."
Why they drafted it this way: Subcontractor GL carriers exclude CG 20 37 Completed Operations or use CG 20 33 "direct privity" wording so they can deny defense to the upstream Property Owner (who only signed a contract with the GC, not with the subcontractor).
Mandatory Audit Checklist Points
- Require both ISO CG 20 10 (Ongoing Operations) AND ISO CG 20 37 (Completed Operations) endorsements
- Use ISO CG 20 38 instead of CG 20 33 so upstream Owners/Lenders are covered without direct contract privity
- Verify edition dates (04/13 or 12/19) and ensure no sub-limit caps apply to Additional Insureds
- Carve out pre-existing engineering/agency tooling from "Work Made for Hire" clauses in design-build MSAs
Paste Your ISO CG 20 10 CG 20 37 Additional Insured Completed Operations audit Section or Upload Your Full Construction GL & Subcontractor (.pdf / .docx)
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EndorseIQ™ Policy & Binder Scanner
ACTIVE ENGINE: ENDORSEIQ™ (MULTI-HOP ISO & COVERAGE GRAPH)Frequently Asked Questions
Why does ISO CG 20 33 deny Additional Insured coverage to the Property Owner on a subcontract?
ISO CG 20 33 requires a direct written contract ("when you and such person or organization have agreed in writing in a contract with you"). Because a trade subcontractor signs a contract only with the General Contractor (and not directly with the Property Owner), courts hold that CG 20 33 provides zero Additional Insured coverage to the Owner! Always require ISO CG 20 38 or scheduled CG 20 10 + CG 20 37.
What happens if a subcontractor’s policy has CG 20 10 but is missing CG 20 37?
ISO CG 20 10 terminates the exact moment the subcontractor finishes its work at the jobsite. If a pipe leaks, a balcony fails, or a patron trips 2 weeks after substantial completion, CG 20 10 pays $0—only ISO CG 20 37 covers the Products-Completed Operations Hazard.
How do I redline ISO CG 20 10 CG 20 37 Additional Insured Completed Operations audit traps in my Construction GL & Subcontractor anonymously without creating an account?
Upload your Construction GL & Subcontractor PDF or Word (.docx) draft to ExclusionRadar.com to run the "ISO CG 20 10 & CG 20 37 Additional Insured Completed Operations" defense cartridge 100% anonymously—with zero account registration, zero email login, and stateless in-memory processing. EndorseIQ™ flags ISO CG 20 10 CG 20 37 Additional Insured Completed Operations audit exposure (typically $75,000 – $500,000+ in denied Completed Operations defense & indemnity; documented unredlined loss: $320,000 denied Completed Operations & subcontractor defect claim), checks for cross-section overrides, and exports a ready-to-send Microsoft Word (.docx) Track-Changes file.
More Construction GL & Subcontractor Redline Playbooks
View All Construction GL & Subcontractor PlaybooksISO CG 22 94 Subcontractor Work & Action-Over Exclusion Audit
Surplus-lines and low-cost construction GL binders frequently attach three coverage-destroying endorsements: (1) ISO CG 22 94 or CG 22 95, which deletes the critical "Subcontractor Exception" to the "Your Work" exclusion (meaning if a subcontractor you hired causes a $400,000 water or structural defect, your GL policy pays $0); (2) ISO CG 21 39 (Contractual Liability Limitation), which deletes coverage for indemnity obligations in your construction contracts; and (3) an "Action-Over / Employee of Independent Contractor" exclusion.
ISO CG 20 01 Primary & Non-Contributory + CG 24 04 Subrogation
Even when a contractor or vendor has a $1M GL policy and a $5M Umbrella policy, a missing ISO CG 20 01 (Primary and Non-Contributory) endorsement or an Umbrella "Other Insurance" clause can trigger "Horizontal Exhaustion"—allowing the subcontractor’s Umbrella carrier to refuse to pay until the upstream Owner’s and GC’s own primary policies are exhausted first. Similarly, an ISO CG 24 04 Waiver of Subrogation that requires a scheduled list instead of blanket wording leaves you open to carrier subrogation suits.
Construction Subcontractor Agreement Redline Auditor (Pay-if-Paid & Retainage)
General Contractor (GC) subcontracts are notoriously one-sided. A "Pay-if-Paid" clause means if the property owner gets into a dispute with the GC over something completely unrelated to your trade, the GC never has to pay you for your completed work and materials.
NDA & Confidentiality Agreement Redline Auditor (Residuals & Hidden Non-Solicits)
Enterprise counterparties regularly sneak a "Residuals Clause" into standard NDAs stating that anything their employees "retain in their unaided memory" after reading your pitch deck or source code can be freely used to build a competing product.