6.1 Commercial General Liability (CGL) Coverage

Key Takeaways

  • CGL policies provide essential liability protection through Coverage A (Bodily Injury & Property Damage), Coverage B (Personal & Advertising Injury), and Coverage C (Medical Payments).
  • Coverage A protects against premises, ongoing operations, products, and completed operations hazards, subject to standard policy exclusions and definition requirements.
  • The fundamental distinction between Occurrence and Claims-Made forms lies in the trigger event: Occurrence requires the injury or damage to take place during the policy period, whereas Claims-Made requires the claim to be first made in writing during the policy period for an event occurring on or after the Retroactive Date.
  • Extended Reporting Periods (ERPs) protect against coverage gaps when terminating a Claims-Made policy, providing an automatic 60-day mini-tail and 5-year midi-tail (Basic ERP) or an unlimited duration Supplemental Tail (SERP) purchased by endorsement.
Last updated: July 2026

6.1 Commercial General Liability (CGL) Coverage

Commercial General Liability (CGL) insurance is the foundational liability coverage for commercial enterprises. It protects businesses against legal liability arising from bodily injury, property damage, and personal or advertising injury caused by their operations, premises, products, or completed work. For claims adjusters, mastering the CGL policy requires a precise understanding of its core insuring agreements, hazard classifications, coverage triggers, and reporting period extensions.


The Core CGL Insuring Agreements

The standard ISO Commercial General Liability policy is structured into three primary coverages, each serving a distinct protective function.

Coverage A: Bodily Injury & Property Damage Liability

Under Coverage A, the insurer agrees to pay those sums that the insured becomes legally obligated to pay as damages because of bodily injury (physical injury, sickness, disease, or resulting death) or property damage (physical injury to tangible property, including loss of use, or loss of use of tangible property that is not physically injured). The policy also creates a duty to defend the insured against any suit seeking covered damages, even if the allegations are groundless or fraudulent.

Coverage A liability is categorized into four primary hazard exposures:

  1. Premises Liability: Protects against bodily injury or property damage arising out of the ownership, maintenance, or use of the insured’s physical business premises (e.g., a retail customer slips and falls on a wet floor inside a grocery store).
  2. Operations Liability: Covers liability arising out of ongoing business operations conducted on or off the primary premises (e.g., a contractor drops a tool while working on a client’s roof, damaging a vehicle parked below).
  3. Products Liability: Covers bodily injury or property damage caused by goods or products manufactured, sold, handled, distributed, or disposed of by the insured or others trading under the insured’s name. Crucially, coverage applies only after physical possession of the product has been relinquished to others and the injury occurs away from premises owned or rented by the insured (e.g., a consumer suffers severe burns when a toaster manufactured by the insured short-circuits at home).
  4. Completed Operations Liability: Covers bodily injury or property damage arising out of work performed by the insured that has been completed or abandoned. Work is deemed completed at the earliest of when all contract work is finished, when all work at a specific site is finished, or when the work has been put to its intended use (e.g., a plumbing contractor completes a commercial kitchen installation, and six months later a defective pipe connection ruptures, flooding the building).

Key Coverage A Exclusions

Coverage A contains critical exclusions designed to prevent duplicate coverage with other standard policies or exclude uninsurable risks: expected or intended injury, contractual liability (except insured contracts), liquor liability (for those in the business of manufacturing/distributing alcohol), Workers' Compensation and employers liability, pollution, aircraft/auto/watercraft liability, and damage to the insured's own product or work.


Coverage B: Personal & Advertising Injury Liability

Coverage B protects the insured against legal liability arising out of specific non-physical offenses committed in the course of business operations. Unlike Coverage A, Coverage B does not require physical bodily injury or tangible property damage.

Covered offenses under Coverage B include:

  • False arrest, detention, or imprisonment
  • Malicious prosecution
  • Wrongful eviction or entry into a room, dwelling, or premises that a person occupies
  • Libel, slander, or disparagement of a person’s or organization’s goods, products, or services
  • Oral or written publication of material that violates a person’s right of privacy
  • The use of another’s advertising idea in the insured’s advertisement
  • Infringing upon another’s copyright, trade dress, or slogan in an advertisement

Exclusions under Coverage B include knowing publication of false material, criminal acts, breach of contract, incorrect price quotes, and offenses committed by insureds in media, publishing, or advertising businesses.


Coverage C: Medical Payments

Coverage C provides voluntary, goodwill payments for necessary medical, surgical, X-ray, dental, ambulance, hospital, professional nursing, and funeral expenses incurred by third parties injured in an accident on premises owned/rented by the insured or because of the insured's operations. Expenses must be incurred and reported within one year of the accident date.

Unique Feature: Goodwill Coverage Regardless of Fault

Unlike Coverages A and B, Coverage C pays regardless of legal fault or negligence. It serves as a prompt claim-mitigation tool to settle minor injuries before they escalate into formal lawsuits. Coverage C excludes injuries to the named insured, the insured’s employees, tenants on rented premises, or persons entitled to Workers' Compensation benefits.


Coverage Triggers: Occurrence Form vs. Claims-Made Form

The fundamental operational difference between the two standard CGL forms lies in the coverage trigger—the specific event that activates the policy to respond to a loss.

FeatureOccurrence FormClaims-Made Form
Coverage TriggerInjury or damage occurs during the policy period.Claim is first made in writing during the policy period (or ERP).
Reporting WindowClaims can be reported years after policy expiration, provided injury occurred during policy term.Claims must be reported during policy period or designated ERP.
Retroactive DateNot Applicable.Applies strictly; event must occur on or after Retroactive Date.
Primary Risk ManagedLong-tail exposures (e.g., latent disease, environmental seepage).Sudden rate inflation and delayed claim reporting.
Tail Coverage NeededNo.Yes, upon cancellation, nonrenewal, or switch to Occurrence form.

The Retroactive Date & Extended Reporting Periods (ERPs)

Under a Claims-Made CGL form, two vital provisions govern coverage continuity:

The Retroactive Date

The Retroactive Date is listed on the policy declarations page and establishes the temporal boundary for covered occurrences. For coverage to attach, the bodily injury or property damage must occur on or after the Retroactive Date AND the resulting claim must be first made against the insured during the policy period.

Exam Warning: Advancing the Retroactive Date to a later date (or eliminating it when renewing a claims-made policy) creates an immediate coverage gap for unknown past occurrences. Adjusters must verify that the Retroactive Date remains continuous across policy renewals.

Extended Reporting Periods (ERPs) / Tail Coverage

When a Claims-Made policy is cancelled, nonrenewed, or replaced by an Occurrence form, an Extended Reporting Period (ERP) provides an extended window to report claims for bodily injury or property damage that occurred on or after the Retroactive Date but prior to policy expiration.

  1. Basic Extended Reporting Period (BERP): Provided automatically at no extra charge.
    • 60-Day Mini-Tail: Provides an automatic 60-day window after policy expiration to report any covered claims.
    • 5-Year Midi-Tail: Provides a 5-year reporting window for claims resulting from incidents that were explicitly reported to the insurer in writing within 60 days of policy expiration.
  2. Supplemental Extended Reporting Period (SERP / Supplemental Tail): Available by endorsement for an additional premium (typically up to 200% of the annual premium). Must be requested in writing within 60 days after policy termination. The SERP provides an unlimited duration reporting window and restores the policy's aggregate limit of liability.
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CGL Claims-Made Coverage Trigger & Extended Reporting Periods Timeline
Test Your Knowledge

Under Coverage A of the Commercial General Liability (CGL) policy, which hazard covers bodily injury caused by a defective toaster after it has been manufactured, sold, and delivered to the customer's home?

A
B
C
D
Test Your Knowledge

How does Coverage C (Medical Payments) in a Commercial General Liability policy differ from Coverage A (Bodily Injury & Property Damage)?

A
B
C
D
Test Your Knowledge

A claims-made CGL policy has a Retroactive Date of January 1, 2021, and a policy period of January 1, 2025, to January 1, 2026. An incident causing property damage occurred on August 15, 2020, and the injured third party files a claim against the insured on June 10, 2025. Is this claim covered?

A
B
C
D