11.3 Key CGL Exclusions and Endorsements

Why the CGL Excludes Certain Exposures

Exclusions on the Commercial General Liability (CGL) form, ISO CG 00 01, exist for three reasons: to preserve fortuity (no coverage for deliberate harm), to push specialized risks onto proper policies (auto, workers' compensation, professional liability), and to avoid making the CGL a performance warranty on the insured's own work or product.

The most heavily tested Coverage A exclusions are:

• Expected or Intended Injury — harm the insured expected or intended (reasonable-force self-defense is an exception).
• Contractual Liability — liability assumed in a contract, subject to the insured-contract exception below.
• Liquor Liability — applies only to insureds in the business of making, selling, or serving alcohol; a host serving guests is not excluded.

The remaining core exclusions push specialized risks onto other policies:

• Workers' Compensation / Employer's Liability — bodily injury to an employee in the course of employment.
• Pollution — gradual and most sudden discharge of pollutants.
• Auto, Aircraft, Watercraft — liability arising from owning or operating most of these.
• Damage to Your Product / Your Work / Impaired Property — the CGL is not a quality guarantee.

The Insured-Contract Exception

The contractual liability exclusion removes coverage for liability the insured assumes by contract. But the exclusion contains a critical carve-back: liability assumed under an insured contract is covered again.

An insured contract includes defined business agreements, the most common being:

• a lease of premises (with a fire-damage carve-out tied to the Damage to Premises Rented to You limit),
• a sidetrack agreement with a railroad,
• an easement or license agreement,
• an obligation to indemnify a municipality as required by ordinance, and
• that part of any contract where the insured assumes the tort liability of another (a hold-harmless/indemnification clause) to pay for bodily injury or property damage.

Exam trap: Contractual liability is excluded first, then restored for insured contracts. A question describing a tenant assuming a landlord's liability in a lease is usually testing this carve-back.

Damage to Your Product vs. Your Work

These two exclusions confuse many candidates. The CGL will pay when the insured's faulty work or product injures a third party or other property, but not to repair or replace the insured's own product or work.

The principle: the CGL is third-party liability coverage, not a warranty bond on the insured's own performance. Recall and replacement costs are uninsurable business risks under this form.

Endorsements That Tailor the CGL

Endorsements add, restrict, or clarify coverage. The most common adjust who is insured or restore an excluded exposure.

• Additional Insured - Owners, Lessees or Contractors (CG 20 10) — adds a project owner or general contractor for ongoing operations.
• Additional Insured - Completed Operations (CG 20 37) — extends additional-insured status to completed-operations exposure; often paired with CG 20 10.
• Additional Insured - Managers or Lessors of Premises (CG 20 11) — adds a landlord on a leased space.
• Additional Insured - Mortgagee, Assignee, or Receiver (CG 20 18) — protects a lender's interest.
• Amendment of Liquor Liability Exclusion — restores or modifies liquor coverage when needed.

Exam trap: Independent contractors, subcontractors, and additional insureds are not automatic insureds — each requires an endorsement. Coverage the CGL excludes outright, such as professional liability or owned-watercraft liability, is filled by a separate policy, not by a CGL endorsement.

Pollution and the Mobile-Equipment Boundary

The pollution exclusion is one of the broadest on the CGL. It bars liability for the actual or threatened discharge, dispersal, or escape of pollutants at premises the insured owns or operates, at waste sites, or during transport. Limited exceptions exist, such as a building-heating equipment exception and certain hostile-fire scenarios. Businesses with real pollution exposure buy a separate Environmental or Pollution Liability policy.

The auto/aircraft/watercraft exclusion removes liability from owning or operating these, pushing it onto commercial auto, aviation, or marine policies. But the CGL does cover mobile equipment (forklifts, bulldozers, certain self-propelled machines) and may cover small, non-owned watercraft within stated limits.

Exam trap: The line between an excluded "auto" and a covered "mobile equipment" item turns on the ISO definitions, not on whether the item has wheels or an engine.

Primary vs. Noncontributory and Waiver of Subrogation

Additional-insured arrangements often come with two contract-driven requests the producer must recognize:

• Primary and Noncontributory: the named insured's CGL agrees to respond first and not seek contribution from the additional insured's own coverage. This is added by endorsement (for example CG 20 01).
• Waiver of Transfer of Rights of Recovery (Waiver of Subrogation): the insurer gives up its right to subrogate against a specified party, commonly required in construction and lease contracts and added by endorsement such as CG 24 04.

Exam trap: A certificate of insurance does not by itself amend coverage; the underlying endorsement must be on the policy for the additional insured, primary-noncontributory, or waiver terms to apply.