The truck is insured. The trailer, the tools, and the employee's own car often are not.

The limit your auto policy has to carry is written in the contract, not in a rule, so read the clause rather than a rule of thumb. What the clause usually also demands, and what contractors regularly miss, is additional insured status and a waiver of subrogation on the AUTO policy specifically. Both are separate endorsements from the ones on general liability, and satisfying the requirement on one policy does nothing for the other. Send us the clause and we will tell you which half you have.

When a personal policy stops working

The test is ownership and use, not how many vehicles you have. A vehicle titled to the business, or used primarily for the business, generally belongs on a commercial policy, and a personal auto carrier can deny a claim on business-use grounds.

The genuinely grey area is the personally owned truck used for work, which is common in one-person operations. That is a conversation about titling, primary use, and what your personal carrier actually knows, rather than a clean rule. It is worth having deliberately, because discovering the answer at claim time is the expensive version.

The three gaps around the vehicle

First, trailers. They generally have to be scheduled, and covering the trailer itself is a different thing from liability while towing. For landscaping and excavation, the trailer and its load can exceed the value of the truck, and this is where contractor auto policies are most often thin.

Second, tools. Commercial auto covers the vehicle and liability from its use, not the contents. A van break-in is usually an equipment claim, not an auto claim.

Third, other people's vehicles. Hired and non-owned auto covers rented trucks and employees driving their own cars for work. That last one is a genuine gap: an employee's personal policy may not respond to a business errand, and without hired and non-owned, neither does yours.

What it costs, and what moves the number

Commercial auto is rated off the number and type of vehicles, your radius of operation, the driving records on the policy, and your limits. A single service van for a clean-record operation prices very differently from a fleet hauling equipment across state lines.

Driver records move the number more than most owners expect. A single driver with a poor record can reshape the whole policy, and carriers increasingly want the driver list managed rather than submitted once and forgotten. Treating it as a live document is a real cost lever.

The driver schedule, and the excluded-driver trap

Policies are written around a list of drivers. An undisclosed driver is a coverage argument waiting to happen, and some policies explicitly exclude named individuals, usually after a bad record. If an excluded driver takes a truck out and has an accident, that is a very bad day with no coverage behind it.

Keeping the list current when crews change is the least interesting maintenance task in a contractor's insurance file and one of the most consequential. It is the item we most often find out of date at renewal.

Where your trucks sit against the weight line

Commercial auto splits in two at a gross vehicle weight rating of 10,001 pounds, and most trade fleets sit on both sides of it at once. The service van and the crew cab are light vehicles, and their claims turn on which numbered symbol the carrier attached to each coverage. The dump truck and the loaded equipment trailer are not, and a second set of registration and driver-file obligations can attach to them.

The structural version of both, without the trade framing, is on the commercial auto insurance page. Vans, pickups and cars are covered in depth on commercial auto for cars and light trucks. Dump trucks, heavy tow rigs and anything you declare a load on are on commercial auto for heavy trucks and fleets, including why hauling your own material does not put an Oregon contractor outside the motor carrier chapter.

Questions worth asking before you sign

Ask whether every vehicle used for the business is actually on the policy. Ask whether your trailers are scheduled. Ask whether hired and non-owned is included for employees using their own cars. Ask who is on the driver list and whether anyone is excluded. Ask whether the contract limits and endorsements are satisfied on the auto policy, not just on general liability.