Understanding the CGL Boundary
In the world of commercial insurance, one of the most critical distinctions for an underwriter or a claims adjuster—and certainly for a student of the complete General Liability exam guide—is the line between Mobile Equipment and Autos. This distinction determines whether a loss is covered under the Commercial General Liability (CGL) policy or the Business Auto Policy (BAP).
The CGL policy is designed to cover liability arising from business operations, premises, and products. While it covers certain types of machinery used in these operations, it specifically excludes liability arising from the use of 'autos' in most circumstances. Understanding which category a vehicle falls into is essential for answering practice General Liability questions correctly.
Defining Mobile Equipment
Under the standard ISO CGL form, Mobile Equipment refers to various types of land vehicles that are primarily designed for use off public roads. The definition includes several specific categories:
- Bulldozers, farm machinery, and forklifts: These are the classic examples of mobile equipment used for construction or agricultural purposes.
- Vehicles maintained for use solely on or next to premises you own or rent: For example, a small utility cart used only within a large warehouse complex.
- Vehicles that travel on crawler treads: Such as excavators.
- Vehicles maintained primarily to provide mobility to permanently attached equipment: This includes power cranes, shovels, loaders, diggers, or drills.
- Vehicles that are not self-propelled: Such as air compressors, pumps, or generators that are towed but are designed to be used while stationary.
Key Differences: Auto vs. Mobile Equipment
| Feature | Mobile Equipment (CGL) | Auto (BAP) |
|---|---|---|
| Primary Purpose | Off-road work / specialized tasks | Transportation on public roads |
| Road Registration | Usually not registered for road use | Subject to motor vehicle registration |
| Movement Method | Crawler treads or specialized wheels | Standard tires for road travel |
| Liability Coverage | CGL (while working or in transit) | Business Auto Policy |
Defining the 'Auto'
The CGL definition of an Auto is a land motor vehicle, trailer, or semi-trailer designed for travel on public roads, including any attached machinery or equipment. However, the definition has evolved to clarify the 'grey area' vehicles.
Crucially, if a vehicle is subject to a compulsory or financial responsibility law or other motor vehicle insurance law in the state where it is licensed or principally garaged, it is considered an Auto, even if it otherwise fits the description of mobile equipment. This ensures that vehicles required by law to have liability insurance are covered by a dedicated auto policy rather than a general liability form.
The Registration Rule
When in doubt on the exam, look at the registration status. If a vehicle must be registered with the DMV to operate on public highways, it is almost always classified as an Auto for insurance purposes, even if it has a crane attached to it.
The Exception for Equipment in Transit
One area where students often get confused is how these items are transported. While the CGL covers the operation of mobile equipment, it does not cover the liability of transporting that equipment on a trailer. If a bulldozer falls off a trailer being pulled by a truck on a highway, the Business Auto Policy (the truck's policy) would respond to the liability of the accident, not the CGL.
However, once the bulldozer is off the trailer and digging a trench at a job site, any liability it causes (e.g., hitting a parked car or damaging a gas line) falls under the CGL's coverage for mobile equipment.