Flagship COI & GL Playbook • ISO CG 20 10, CG 20 37 & CG 20 382026 Clause Template • 100% AnonymousClause Danger Score: 98/100Typical Exposure: $95,000 – $650,000+ in denied upstream Additional Insured defense

CG 20 10 vs. CG 20 37: How to Audit Subcontractor COIs for Ongoing & Completed Operations Gaps

Collecting an ACORD 25 Certificate of Insurance with an "X" in the Additional Insured column does not confer legal coverage. Over 75% of construction defect and bodily injury claims arise after work finishes, yet subcontractors routinely supply only ISO CG 20 10 ("Additional Insured — Ongoing Operations"), which terminates the exact day the subcontractor leaves the site. Without ISO CG 20 37 ("Additional Insured — Products-Completed Operations Hazard") and ISO CG 20 38 (automatic upstream status without direct contract privity), upstream GCs and Property Owners face immediate tender rejections.

Real-World Financial Loss Case Study & PreventionDocumented Loss: $320,000 denied Completed Operations & subcontractor defect claim

General Contractor Left With $320,000 Uninsured Water Defect Claim Due to Missing CG 20 37 & CG 22 94 Exclusion

What Went Wrong (Unredlined Draft)

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.

How EndorseIQ™ Prevents It Automatically

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 & Noncontributory (CG 20 01) vertical exhaustion.

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Free 2026 Copy-Paste Clause Template (First 60% Unlocked • Cross-Section Carve-Out Gated)

“ADDITIONAL INSURED — AUTOMATIC STATUS (ISO CG 20 33 04 13): Any person or organization for whom you are performing operations is an additional insured ONLY when you and such person or organization have agreed in writing in a contract or agreement that such person be added. A person’s status as an additional insured under this endorsement ends when your operations for that additional insured are completed.”

“MANDATORY ONGOING & COMPLETED OPERATIONS ADDITIONAL INSURED BUNDLE (ISO CG 20 10 / CG 20 38 + CG 20 37): Subcontractor’s Commercial General Liability policy shall be endorsed with: (a) ISO Form CG 20 10 (or ISO CG 20 38 Automatic Upstream Status without direct contractual privity limitation) covering Ongoing

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What to Say to the GL Carrier & Upstream GC / Owner Requirements

"An ACORD 25 COI without the actual ISO endorsement pages attached is informational only. Please provide the actual ISO CG 20 10 (or CG 20 38 for upstream owner coverage without direct privity) AND ISO CG 20 37 Completed Operations endorsements, along with CG 20 01 Primary & Noncontributory and CG 24 04 Waiver of Subrogation."

Why they drafted it this way: Subcontractor carriers omit CG 20 37 to cut off defense obligations the day punch-list work finishes, and use CG 20 33 instead of CG 20 38 so they can deny coverage to the Property Owner (who only signed a contract with the GC, not with the subcontractor).

Mandatory Audit Checklist Points

Verify both ISO CG 20 10 (Ongoing Operations) AND ISO CG 20 37 (Completed Operations) are attached
Replace ISO CG 20 33 with ISO CG 20 38 so upstream Owners and Lenders are covered without direct privity
Audit 04/13 and 12/19 edition "lesser of contract requirement or policy limit" caps in Section III
Confirm ISO CG 20 01 (Primary & Noncontributory) and ISO CG 24 04 (Waiver of Subrogation) are included

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EndorseIQ™ Policy & Binder Scanner

ACTIVE ENGINE: ENDORSEIQ™ (MULTI-HOP ISO & COVERAGE GRAPH)

1. Select Policy / COI Playbook & Protected RoleAuto-Tailored to Your Protected RoleConstruction GL & Subcontractor • Protecting: General Contractors, Subs & Builders

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COMMERCIAL GENERAL LIABILITY (CGL) CONSTRUCTION BINDER & ENDORSEMENT SCHEDULE

THIS COMMERCIAL GENERAL LIABILITY BINDER ("Policy") is issued by VANGUARD SPECIALTY E&S INSURANCE CO. ("Carrier") to APEX BUILDERS & MECHANICAL CONTRACTORS INC. ("Named Insured") with limits of $1,000,000 Each Occurrence / $2,000,000 General Aggregate / $2,000,000 Products-Completed Operations Aggregate.

SECTION 1. ENDORSEMENT CG 21 39 — CONTRACTUAL LIABILITY LIMITATION (DELETION OF INSURED CONTRACT).
This Policy is modified by ISO Endorsement CG 21 39. The definition of "Insured Contract" in Section V (Definitions) of Commercial General Liability Coverage Form CG 00 01 is amended by deleting Paragraph f. in its entirety. Consequently, this Policy provides ZERO coverage for any tort liability assumed by Named Insured in any construction subcontract, Master Services Agreement (MSA), AIA contract, or hold-harmless indemnity agreement with an Owner or General Contractor.

SECTION 2. ENDORSEMENT CG 22 94 — EXCLUSION: DAMAGE TO WORK PERFORMED BY SUBCONTRACTORS ON YOUR BEHALF.
This Policy is modified by ISO Endorsement CG 22 94. Exclusion l. (Damage to Your Work) of Section I — Coverage A (Bodily Injury and Property Damage Liability) is replaced to delete the subcontractor exception. This insurance does not apply to "Property Damage" to "your work" arising out of it or any part of it and included in the "products-completed operations hazard," even if the damaged work or the work out of which the damage arises was performed on your behalf by a subcontractor.

SECTION 3. ADDITIONAL INSURED SCHEDULE — ONGOING OPERATIONS ONLY (OMISSION OF CG 20 37 COMPLETED OPERATIONS).
Blanket Additional Insured coverage for upstream General Contractors and Project Owners is provided exclusively under Endorsement CG 20 10 (Ongoing Operations). Coverage for Additional Insureds terminates the moment Named Insured's active operations at the jobsite cease. Endorsement CG 20 37 (Additional Insured — Owners, Lessees or Contractors — Completed Operations) is NOT attached, leaving Named Insured in breach of all post-completion subcontract insurance requirements.

SECTION 4. MANUSCRIPT ACTION-OVER / EMPLOYEE BODILY INJURY & LABOR LAW EXCLUSION (ENDT. GL-904).
Notwithstanding anything to the contrary in the "Employer's Liability" exclusion, this Policy does not apply to any claim, suit, contractual indemnity demand, or third-party "Action-Over" impleader brought by an Owner, General Contractor, or third party seeking contribution or indemnification for "Bodily Injury" to any employee, leased worker, temporary worker, or employee of any subcontractor of Named Insured (including any claim arising under New York Labor Law §§ 200, 240, or 241).

SECTION 5. MANUSCRIPT RESIDENTIAL, MULTI-FAMILY, MIXED-USE CONVERSION & SUBSIDENCE EXCLUSION (ENDT. GL-918).
This insurance does not apply to any "bodily injury," "property damage," or defense expense arising out of construction, remodeling, repair, or subcontracting work on any tract housing, condominium, townhouse, apartment building, dormitory, or mixed-use building containing residential units, or any structure converted to residential use at any time. Furthermore, all claims arising out of earth movement, soil settlement, underpinning, shoring, or subsidence are excluded in their entirety.

Optional — Deal Context or Special Concerns (e.g., "5-year retail lease in Texas" or "$40k fixed-fee dev build")

100% Stateless & Private • Replaces a $1,200 – $3,500 Risk Audit attorney review

Frequently Asked Questions

Why is ISO CG 20 10 alone insufficient for construction subcontractors?

ISO CG 20 10 covers liability only while the subcontractor is actively performing ongoing operations at the jobsite. Once the work is put to its intended use or completed, CG 20 10 coverage stops. Only ISO CG 20 37 extends Additional Insured status into the Products-Completed Operations period.

Why does ISO CG 20 33 create a "Direct Privity Trap" for Property Owners?

ISO CG 20 33 grants automatic Additional Insured status only to entities with whom the subcontractor has executed a direct written contract. Because a trade subcontractor signs a contract with the General Contractor—not the Building Owner—courts routinely hold that CG 20 33 gives the Building Owner zero coverage. ISO CG 20 38 fixes this by extending status to any upstream party required by the subcontract.

How do I redline CG 20 10 vs CG 20 37 additional insured ongoing 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 "CG 20 10 vs. CG 20 37: How to Audit Subcontractor COIs for Ongoing & Completed Operations Gaps" defense cartridge 100% anonymously—with zero account registration, zero email login, and stateless in-memory processing. EndorseIQ™ flags CG 20 10 vs CG 20 37 additional insured ongoing completed operations audit exposure (typically $95,000 – $650,000+ in denied upstream Additional Insured defense; 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.

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Danger Score: 99/100

NY Labor Law § 240/241 "Action-Over" Exclusion Audit: Catching Grave Injury & Scaffold Law GL Traps

Under New York Labor Law § 240 ("Scaffold Law") and § 241(6), property owners and general contractors face strict, absolute liability for gravity-related worker injuries. When a subcontractor’s injured worker collects Workers’ Compensation and then sues the upstream Property Owner and GC under Labor Law § 240, the Owner/GC tenders the defense and contractual indemnity back down to the subcontractor ("Action-Over"). However, E&S carriers in New York routinely slip an "Action-Over Exclusion," "Injury to Employee of Contractor Exclusion," or ISO CG 21 39 into the subcontractor’s or GC’s GL binder—wiping out 100% of coverage for the exact claim structure that dominates NY construction litigation.

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Danger Score: 96/100

Texas Insurance Code Chapter 151 Anti-Indemnity Audit: Enforcing CG 20 10 & CG 20 37 Carve-Outs

Under the Texas Anti-Indemnity Act (Texas Insurance Code Chapter 151, §§ 151.102–151.104), any provision in a construction contract—and any Additional Insured endorsement—that requires a subcontractor to indemnify or insure an upstream GC or Owner for the upstream party’s own negligence is void and unenforceable as against public policy, WITH TWO CRITICAL STATUTORY EXCEPTIONS: (1) bodily injury or death of an employee of the indemnitor/subcontractor (§ 151.103), and (2) municipal or public works projects (§ 151.105). If a Texas GL binder attaches an overbroad Texas Anti-Indemnity limitation endorsement that fails to preserve the § 151.103 Employee Bodily Injury exception, or omits ISO CG 20 10 / CG 20 37 comparative-fault wording, defense tenders are routinely denied.

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Danger Score: 98/100

ISO CG 21 39 Contractual Liability Limitation: Why It Voids Hold-Harmless Indemnity & How to Strike It

In a standard ISO CG 00 01 Commercial General Liability policy, Exclusion b. ("Contractual Liability") excludes liability assumed in a contract, EXCEPT for liability assumed in an "Insured Contract." Under Section V, Definition 9 ("Insured Contract"), paragraphs L. through E. cover leases, sidetrack agreements, and elevator maintenance, while Paragraph f. is the crucial catch-all covering every construction subcontract, vendor MSA, and hold-harmless indemnity agreement. ISO Endorsement CG 21 39 ("Contractual Liability Limitation") deletes Paragraph f. completely—meaning the moment you sign a subcontract or client MSA agreeing to indemnify your client for third-party bodily injury or property damage, you have zero insurance backing that promise.

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Danger Score: 94/100

ISO CG 20 01 Primary & Noncontributory + CG 24 04 Waiver of Subrogation: Preventing Horizontal Exhaustion

When a serious $2,500,000 claim occurs on a project where a subcontractor or vendor carries $1,000,000 Primary GL and $5,000,000 Excess/Umbrella, upstream GCs and Owners expect the subcontractor’s $1M Primary and $5M Umbrella to pay the full $2.5M ("Vertical Exhaustion"). However, if ISO CG 20 01 ("Primary and Noncontributory — Other Insurance Condition") is missing, or if the subcontractor’s Umbrella policy contains a standard "Excess Over All Other Valid and Collectible Insurance" clause, courts enforce "Horizontal Exhaustion"—forcing the upstream GC’s and Owner’s own primary GL policies to pay before the subcontractor’s Umbrella contributes a dollar.

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