The order in which an underwriter reviews a CGL submission is not neutral. Most underwriters start with the premium indication and work backward — they see the expected rate, form an anchoring impression about whether the account is attractive, and then review the risk characteristics to confirm or adjust that initial impression. This sequence produces consistent anchoring bias: risks priced at above-market rates get approved with less scrutiny than the risk would warrant on its own merits, and risks priced competitively get approved even when specific risk characteristics would support a higher rate or a declination.
Reversing the sequence — review risk characteristics first, form a risk opinion independent of pricing, then compare the risk opinion to the rate — produces better underwriting outcomes. The practical question is which characteristics to prioritize when time is constrained, because a thorough review of all available CGL data on every submission is not feasible at standard submission volumes.
Subcontractor Operations: The CGL Factor That Drives Severity
For contractors, the single most predictive factor for CGL claim severity is the proportion of operations performed by subcontractors versus the insured's own employees. Subcontractor operations generate a specific liability exposure that is frequently underweighted in initial premium calculations: the contractual liability assumed when the general contractor is named as an additional insured on a subcontractor's policy, and the gaps in that coverage when the subcontractor's limits are inadequate.
A general contractor with $10M in annual revenues, 60% subcontracted to specialty trades, faces a materially different CGL exposure than the same-revenue contractor who self-performs all work. The ISO CGL rating algorithm addresses this through the subcontractor cost multiplier, but many carriers apply the multiplier mechanically without examining the quality of the subcontractor certificates and indemnification agreements that determine how much of the subcontractor exposure actually flows back to the GC's CGL policy.
The underwriting question is not just how much subcontractor work is being performed — it is whether the GC has effective contracts with indemnification and additional insured requirements that transfer liability back to the subcontractor, and whether those subcontractors carry sufficient limits to satisfy those obligations. A GC with 60% subcontracted work and rigorous contract administration is a materially different risk than a GC with 60% subcontracted work and informal verbal arrangements with day labor subcontractors.
Products Liability Exposure in ISO CGL Submissions
Products and completed operations (PCO) coverage is the component of CGL that generates the largest severity losses for manufacturing and distribution accounts. The ISO CGL rating algorithm rates PCO separately from premises and operations, based on the insured's products liability classification code and annual product sales.
The classification code selection is where most of the underwriting risk lives. An account that manufacturers a product with a known latent defect pattern — medical devices with implant complications, food products with contamination risk, children's toys with injury potential — should be rated under the PCO class code that reflects that specific product hazard, not a generic manufacturing code. Misclassification is common in broker submissions because the ACORD form's product description field is free-text, and brokers routinely describe products in terms favorable to a lower-hazard classification.
The practical check: verify that the ISO classification code on the submission aligns with the product description in the supplemental. A manufacturer described as producing "industrial equipment components" should probably be rated under a specific equipment or machinery PCO code rather than a general manufacturing class. The rate difference between adjacent PCO classes can be 30 to 50%, and systematic misclassification at submission generates adverse loss experience when the claims on those accounts develop.
Prior Carrier and Claims History Gaps
The carrier history field on the ACORD 125 asks for the prior carrier, policy period, and reason for marketing. Reviewing this field carefully reveals several important signals that are easy to overlook when scanning for the premium indication. A carrier change in the prior two to three years — particularly a change from a standard market carrier to a surplus lines carrier and back — warrants scrutiny. Accounts that moved to E&S and are now returning to the standard market may have done so because standard carriers declined at renewal, suggesting a loss or underwriting concern that the current submission does not fully disclose.
The reason-for-marketing field should be read critically. "Rate" as the stated reason is the most common answer and the least informative — nearly every account submitted to multiple carriers can truthfully say it is marketing for rate. A submission that lists "rate" while also showing a carrier change in the prior year deserves more investigation than the face value of the marketing reason suggests. The actual reason may be a non-renewal or a material change in coverage terms that the broker is representing as a rate-driven decision.
When prior loss runs show large open claims — reserves above 50% of the policy's annual premium, or a single claim with reserve development that spans multiple policy years — the underwriter's file should document a specific analysis of that claim before quoting. Open claims on prior policies can result in retrospective adjustments that affect the insured's total cost of risk, and the prior carrier's reserve level is an independent assessment of that risk that should inform the incoming carrier's pricing.
Location and Operation Schedule: What the Application Underrepresents
CGL policies cover operations at all described locations. The location schedule on the ACORD application is frequently incomplete, particularly for accounts with multiple branch locations or project-specific exposures. A regional contractor who operates in 10 counties but lists only the headquarters address on the application may be generating unaddressed exposure in jurisdictions with different liability environments — some states have higher jury award norms than others, and some counties within states have significantly worse litigation environments for defendants.
The verification step is to cross-reference the listed locations against the insured's website, contractor license records (available through most state licensing databases), and the description of operations. A contractor whose operations description mentions work in multiple states but whose location schedule lists only one state has an incomplete application that needs correction before the policy is issued — not after a claim arises in an unlisted jurisdiction.
The Liquor Liability Exclusion and Hospitality Risks
For hospitality accounts — restaurants, bars, event venues — the liquor liability exposure is a separate coverage line that the ISO CGL form excludes by default. Most underwriters know this and check for the liquor liability endorsement or separate policy. But the check often stops at confirming coverage exists, without examining the limits relative to the account's alcohol revenue and sales volume.
Liquor liability severity is driven by dram shop statutes, which vary substantially by state. States with joint and several liability dram shop laws — Texas being the most well-known example — can produce verdicts against a licensed establishment that dwarf the establishment's annual revenue, because the plaintiff's attorney can argue that the establishment's continued service of an already-impaired patron was a proximate cause of the subsequent accident. A bar with $1.5M in annual revenue in a dram shop liability state should not be written with $1M per occurrence liquor liability limits without specific analysis of whether those limits are adequate given the local verdict environment.
Building a Prioritized Review Checklist
Based on the analysis above, a prioritized CGL underwriting checklist should lead with the factors that drive severity rather than the factors that are easiest to verify. The first three checks should be: subcontractor operations and contract quality for contractor accounts; PCO classification code alignment with product description for manufacturing and distribution accounts; and prior carrier history and reason for marketing for all accounts.
Premium indication and rate comparison should come after these checks, not before. The rate tells you what the broker wants to pay — it does not tell you whether the risk justifies that rate. Forming a risk opinion before examining the rate prevents the anchoring effect that leads to underpiced adverse selection on accounts where the broker has submitted at a rate that reflects neither the account's actual loss history nor its prospective exposure characteristics.
As we discuss in our article on adverse selection patterns, the submission data required for this review is largely available in the ACORD forms — the challenge is ensuring that the review happens consistently across all underwriters and all submissions, not only when a senior underwriter happens to notice a specific concern.
Conclusion
The underwriting review sequence matters. Leading with rate anchors the decision to a price target rather than to the risk characteristics that should determine whether and at what price the risk should be written. A model-generated risk score that surfaces the high-priority factors before the underwriter opens the file restores the correct sequence: risk assessment first, pricing negotiation second. That is not a radical change to the underwriting workflow — it is a restoration of how sound underwriting is supposed to work.
See how RiskVert surfaces CGL risk indicators before your underwriters open the file.
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