3.1 Coverage A Exclusions Part 2: Pollution, Transportation, Mobile Equipment & War
Key Takeaways
Exclusion f excludes bodily injury and property damage arising from pollutants across five operational contexts, but preserves coverage for hostile fire smoke/fumes and building HVAC releases.
Exclusion g separates general liability from auto, aircraft, and watercraft liabilities, reserving specific carve-outs for valet parking of non-owned autos, watercraft ashore, and non-owned vessels under 26 feet.
Equipment permanently attached to an auto chassis (such as cherry pickers or pumps) has its stationary work-site operations covered under the CGL, whereas over-the-road travel remains an auto exposure.
Transportation of mobile equipment by an auto is strictly excluded under CGL Exclusion h and must be insured under a Commercial Auto Policy.
Exclusion i bars bodily injury or property damage arising out of war, warlike action by a military force, insurrection, rebellion, revolution, or usurped power, and the current CG 00 01 wording lists no exceptions.
Coverage A Exclusions Part 2: Pollution, Transportation, Mobile Equipment & War
The standard Commercial General Liability (CGL) policy is designed to cover common commercial premises and ongoing operations hazards. However, exposures involving environmental contamination, motor vehicles, aviation, and watercraft present distinct, severe loss dynamics governed by specialized bodies of law and dedicated commercial insurance lines.
To prevent overlapping coverages and manage catastrophic loss potential, the Insurance Services Office (ISO) CG 00 01 form establishes strict exclusionary boundaries under Exclusions f, g, h, and i. Mastering these exclusions—and their crucial coverage-granting exceptions—is essential for identifying unhedged liability exposures and structuring proper commercial casualty insurance programs.
1. Exclusion f: Pollution
Environmental liability represents an unpredictable, high-severity exposure capable of producing multi-million-dollar liabilities decades after an initial chemical release. Exclusion f enforces a broad prohibition on coverage for bodily injury (BI) and property damage (PD) arising from environmental contamination.
The Policy Definition of Pollutants
Under Section V (Definitions) of the CGL policy, pollutants are defined broadly as:
"Any solid, liquid, gaseous or thermal irritant or contaminant, including smoke, vapor, soot, fumes, acids, alkalis, chemicals and waste. Waste includes materials to be recycled, reconditioned or reclaimed."
This expansive definition captures common industrial solvents, petroleum products, toxic gases, agricultural chemicals, and discarded manufacturing byproducts, regardless of whether they are intentionally handled or accidentally produced.
The Five Excluded Pollution Scenarios
Exclusion f eliminates coverage for bodily injury or property damage arising out of the actual, alleged, or threatened discharge, dispersal, seepage, migration, release, or escape of pollutants across five specific operational settings:
- Insured's Premises: Contamination originating at, on, or from any premises owned, rented, or occupied by any insured.
- Waste Sites: Contamination originating at or from any site or location used by or for any insured or others for the handling, storage, disposal, processing, or treatment of waste.
- Waste Handling & Transit: Pollutants that are at any time transported, handled, stored, treated, disposed of, or processed as waste by or for any insured or by any person or organization for whom the insured is legally responsible.
- Contractor Operations Sites: Contamination originating at or from any site or location where any insured (or any contractor or subcontractor working on the insured's behalf) is performing operations, if the pollutants were brought to the site in connection with those operations.
- Waste Operations on Others' Sites: Operations performed by or for an insured to test for, monitor, clean up, remove, contain, treat, detoxify, or neutralize pollutants.
Crucial Coverage Exceptions to Exclusion f
Despite the broad sweep of Exclusion f, the ISO form incorporates specific exceptions that restore coverage for ordinary commercial mishaps that do not reflect traditional industrial pollution hazards:
| Exception Name | Policy Mechanism & Scope of Restored Coverage |
|---|---|
| Hostile Fire Exception | Restores coverage for BI or PD arising out of heat, smoke, or fumes from a hostile fire. A hostile fire is defined as one that becomes uncontrollable or breaks out from where it was intended to be (e.g., a warehouse fire generating toxic smoke that damages an adjacent retailer's inventory). |
| Building HVAC Equipment Exception | Restores coverage for BI sustained within a building caused by smoke, fumes, vapor, or soot produced by or originating from equipment used to heat, cool, or dehumidify the building, or equipment used to heat water for personal use (e.g., carbon monoxide poisoning from a faulty furnace). |
| Additional Insured Premises Exception (Contractors) | Paragraph f(1)(a) does not apply to BI or PD for which a contractor is liable at premises owned or occupied by a person or organization added to the contractor's policy as an additional insured for the contractor's ongoing operations there, provided the premises are not and never were owned, occupied, rented, or loaned to any other insured. |
| Off-Premises Contractor (Fluids) Exception | Restores coverage for BI or PD arising from the accidental, unintentional escape of operating fluids (fuels, lubricants, hydraulic fluid) necessary for the mechanical function of mobile equipment, if released from its normal reservoirs at a customer job site. |
| Off-Premises Building Finish Exception | Restores coverage for BI or PD sustained within a building and caused by the release of gases, fumes, or vapors from materials brought into that building in connection with operations performed by the insured or its contractor (e.g., fumes from floor urethane or paint sickening office occupants). |
| Products-Completed Operations (Structural Gap, Not a Listed Exception) | Paragraphs f(1)(a)-(e) target the insured's premises, waste sites, waste, and job sites where operations are in progress. A release away from the insured's premises after a product is sold or work is completed usually falls outside all five paragraphs, so f(1) does not exclude it (e.g., a heater installed by an HVAC contractor later leaks fumes in the customer's building). Government-ordered cleanup costs under f(2) remain excluded. |
Statutory Cleanup & Government Mandates
In addition to third-party tort claims, Exclusion f explicitly bars coverage for any loss, cost, or expense arising out of any request, demand, order, or statutory requirement (such as under CERCLA / Superfund) that the insured test for, monitor, clean up, remove, contain, treat, detoxify, or neutralize pollutants. Unless an insured is legally liable to a private third party for compensatory property damage independent of government environmental remediation orders, cleanup costs are completely uninsured under the standard CGL.
┌────────────────────────────────────────┐
│ Discharge or Release of Pollutants? │
└──────────────────┬─────────────────────┘
│
▼
┌────────────────────────────────────────────────────────┐
│ Did the release involve an enumerated exception? │
└──────────┬───────────────────────────────────┬─────────┘
│ │
YES │ │ NO
▼ ▼
┌──────────────────────────────────────┐ ┌─────────────────────┐
│ • Hostile Fire Smoke/Fumes? │ │ EXCLUSION f APPLIES │
│ • Building HVAC / Water Heater? │ │ (Coverage Denied; │
│ • Off-Premises Worksite Fumes? │ │ Requires Site/CPL │
│ • Mobile Equipment Fluid Escape? │ │ Policy) │
│ • Completed Ops (outside f(1))? │ └─────────────────────┘
└──────────────────┬───────────────────┘
│
▼
┌──────────────────────────────────────┐
│ CGL COVERAGE RESTORED │
│ (Subject to all other policy terms) │
└──────────────────────────────────────┘
2. Exclusion g: Aircraft, Auto or Watercraft
Transportation risks involving aircraft, automobiles, and maritime vessels present distinct underwriting characteristics governed by federal aviation rules, state financial responsibility laws, and maritime jurisprudence. Exclusion g ensures that motor vehicle, aviation, and marine liabilities are diverted to specialized policies (such as the Business Auto Policy, Aircraft Hull and Liability, or Protection and Indemnity forms).
Core Exclusionary Trigger
Exclusion g bars coverage for bodily injury or property damage arising out of the:
- Ownership,
- Maintenance,
- Use (including operation and "loading or unloading"), or
- Entrustment to others
of any aircraft, "auto", or watercraft owned or operated by or rented or loaned to any insured. The exclusion also applies when the claim alleges negligence in the supervision, hiring, employment, training, or monitoring of others by an insured, if the occurrence involved such an aircraft, auto, or watercraft.
Critical Exceptions Restoring CGL Coverage
Several common commercial activities involving vehicles do not belong on an auto or marine policy. The ISO form carves out five vital exceptions:
- Valet Parking Exception: Coverage applies to parking an "auto" on, or on the ways next to, premises the named insured owns or rents, provided the auto is not owned by or rented or loaned to the named insured or the insured. Valet parking at a location the insured does not own or rent falls outside this exception. For example, if a restaurant valet crashes a patron's vehicle into a pedestrian, the resulting third-party bodily injury is covered under the restaurant's CGL. However, physical damage to the patron's vehicle itself is excluded by Exclusion j(4) (care, custody, or control) and must be insured under Garagekeepers coverage.
- Watercraft Ashore: Coverage is preserved for watercraft while ashore on premises owned by or rented to the named insured (e.g., a boat displayed on showroom grounds or stored inside a marina dry-dock).
- Small Non-Owned Watercraft: The CGL covers watercraft the named insured does not own, provided the vessel is less than 26 feet long and is not being used to carry persons or property for a charge (fee).
- Contractual Liability for Aircraft and Watercraft: The policy preserves coverage for liability assumed under an "insured contract" for the ownership, maintenance, or use of aircraft or watercraft. Crucial Rule: This contractual exception applies only to aircraft and watercraft—it does not restore coverage for contractual liability involving autos.
- Attached Machinery and Equipment (Operations vs. Transit): Modern commercial trucks frequently serve as mobile platforms for specialized tools (e.g., bucket trucks/cherry pickers, air compressors, vehicle-mounted pumps, sprayers, and welding rigs). Exclusion g does not apply to bodily injury or property damage arising out of (a) the operation of machinery or equipment attached to, or part of, a land vehicle that would qualify as "mobile equipment" if it were not subject to a compulsory or financial responsibility law, or (b) the operation of the equipment listed in paragraphs f(2) and f(3) of the mobile equipment definition: cherry pickers mounted on a truck chassis, air compressors, pumps, generators, and spraying, welding, building cleaning, geophysical exploration, lighting, and well servicing equipment. While over-the-road travel is an auto loss, the job-site operation of the attached boom or pump is covered under the CGL.
3. Exclusion h: Mobile Equipment
The CGL policy covers liability arising out of the ownership, maintenance, or operation of "mobile equipment" (such as bulldozers, forklifts, road graders, and backhoes). However, Exclusion h establishes clear boundaries to prevent the CGL from absorbing commercial auto exposures.
Excluded Circumstances Under Exclusion h
Exclusion h bars coverage for bodily injury or property damage arising out of:
- Transportation by Auto: The transportation of "mobile equipment" by an "auto" owned or operated by or rented or loaned to any insured. Once a piece of mobile equipment is loaded onto a flatbed trailer or truck, any accident occurring in transit is classified as an auto exposure governed by the Business Auto Policy.
- Racing and Stunting Contests: The use of mobile equipment in, or while practicing for, or while being prepared for, any prearranged racing, speed, demolition, or stunting contest or exhibition.
Distinguishing Mobile Equipment from Autos
Under ISO definitions, the boundary between an "auto" and "mobile equipment" depends on design, road registration, and primary commercial utility:
| Classification | Key Characteristics | Governing Policy Form |
|---|---|---|
| Mobile Equipment | Bulldozers, farm machinery, forklifts, vehicles maintained for use solely on or next to premises owned/rented by the insured, vehicles on crawler treads, and vehicles maintained primarily for purposes other than the transportation of persons or cargo. | Commercial General Liability (CGL) (Operation & site use) |
| Auto | Land motor vehicles, trailers, or semitrailers designed for travel on public roads (including attached machinery not specifically classified as mobile equipment) and any vehicle subject to compulsory motor vehicle financial responsibility laws. | Business Auto Policy (BAP) (Over-the-road & transport) |
When a contractor operates a backhoe on a construction site, liability for digging into a utility line is covered under the CGL as mobile equipment. However, when that same backhoe is chained to a trailer and hauled down an interstate, any collision resulting from an insecure tie-down falls exclusively under the contractor's Commercial Auto Policy.
4. Exclusion i: War
Exclusion i removes coverage for bodily injury or property damage, however caused, arising directly or indirectly out of:
- War, including undeclared or civil war;
- Warlike action by a military force, including action in hindering or defending against an actual or expected attack, by any government, sovereign, or other authority using military personnel or other agents; or
- Insurrection, rebellion, revolution, usurped power, or action taken by governmental authority in hindering or defending against any of these.
The current CG 00 01 wording contains no exceptions to this exclusion. Older CGL editions (before the 2001 revision) applied the war exclusion only to liability assumed under a contract, so a buyer comparing an old policy with a current one may find narrower war coverage today. Terrorism is handled separately through terrorism exclusion or coverage endorsements and federal Terrorism Risk Insurance Program disclosures, not through Exclusion i.
An insured roofing contractor is applying hot tar to a commercial flat roof when a burner malfunctions, igniting an uncontrollable blaze that spreads to adjacent retail stores and generates thick clouds of toxic smoke. The neighboring business owners sue the roofing contractor for severe respiratory injuries caused by the smoke. How does Exclusion f (Pollution) apply to this claim?
The claim is excluded because roofing tar is classified as a hazardous chemical pollutant under all circumstances.
The claim is covered under the hostile fire exception because the smoke and fumes originated from an uncontrollable fire that escaped its intended boundaries.
The claim is excluded because the contractor brought the pollutant onto the job site during ongoing operations.
The claim is covered only if the contractor purchased an environmental impairment liability endorsement.
A commercial property management firm provides valet parking services for patrons at its dining complex. An attendant negligently crashes a patron's sedan into a delivery van in the parking lot, damaging both vehicles and injuring the delivery driver. Under the standard ISO CGL policy, how does Exclusion g (Aircraft, Auto or Watercraft) apply?
All claims are fully covered, including the physical damage to the patron's sedan.
Exclusion g completely bars coverage for all resulting bodily injury and property damage claims.
The bodily injury to the delivery driver is covered, but property damage to the delivery van is excluded.
Third-party bodily injury and property damage to the delivery van are covered under the valet parking exception, but damage to the patron's parked sedan is excluded under care, custody, or control.
A general excavation contractor is transporting a heavy bulldozer on a flatbed trailer towed by a company dump truck. While navigating a highway interchange, the truck overturns, throwing the bulldozer across two traffic lanes and crushing an oncoming passenger vehicle. How does the ISO CGL policy respond to the resulting liability claims?
The CGL policy excludes the loss under Exclusion h because mobile equipment being transported by an auto is treated as an auto liability exposure.
The CGL policy provides primary coverage because a bulldozer is classified as mobile equipment under Section V definitions.
The CGL policy covers the loss under an exception for land vehicles operating on public roads under their own power.
The CGL policy shares coverage on a pro-rata basis with the contractor's Business Auto Policy.
Sections you finish are checked off in the contents.