Liability policies do not pay for damage to property in your care, custody or control. That single clause decides who answers when a machine changes hands on a job, and it catches contractors because the machine in question is usually one they were being helpful about. The remedy is a different coverage part, not a better liability limit.
The clause and why it exists
Read plainly, the exclusion says that a liability policy will not respond to damage to somebody else’s property once that property has come into your possession or under your supervision. A rented loader on your site. A borrowed attachment in your yard. A machine you agreed to move for another firm.
The reasoning is structural rather than adversarial. General liability is priced for accidental harm you cause to third parties and their property in the course of your work — the wall you clipped, the line you struck, the vehicle in the wrong place. Once you take charge of a thing, insuring it stops being liability coverage and becomes property coverage on an asset you chose to accept.
Insurers write property coverage too. They just write it in a different part of the program, with a limit set against the value of what you might be holding rather than against the harm you might do. That is the whole substance of the exclusion, and once you see it that way the remedy is obvious.
There is a second reason worth knowing, because it explains why the clause is drafted so widely. Property in your possession is largely within your control, and a coverage responding regardless of how well you looked after it would remove most of the incentive to look after it at all. Insurers answer that exposure where it can be measured — a stated limit, a described class, a known location — rather than through a liability limit sized for something else entirely.
Relationship one: their machine, your possession
The commonest version is a machine you rented, leased or borrowed. You have possession, your crew is operating it, and by any reading it sits in your care.
Liability is excluded and something else has to answer. On your own program that is a rented and leased equipment coverage part with its own limit. At the counter it may be a damage waiver instead, which is a contractual arrangement rather than insurance — the waiver comparison sets out how the two differ and when each is the better call.
Borrowed machines are the sharpest case in this group because nothing about them generates paperwork. There is no rental agreement allocating responsibility and no invoice establishing value, so both facts have to be settled by two contractors talking, ideally before rather than after. The three not-owned modes and how they diverge are worked through in rented, leased or borrowed equipment coverage.
Relationship two: your machine, their possession
Reverse the arrangement and the exclusion works against you from the other direction. You lend a machine to another firm, and it comes back damaged.
Your own equipment floater is the coverage most likely to respond, because it insures your machine wherever it happens to be. That is the reassuring part. The uncomfortable part is that the claim lands on your loss record rather than theirs, and claim frequency is the heaviest single factor in what an equipment program costs at renewal.
Recovering from the borrower is possible and is not automatic. Their liability policy carries the same exclusion your own does, so unless they hold coverage for equipment in their care there may be nothing on their side to pursue. Asking that question before the machine leaves your yard takes a minute and changes the outcome entirely.
Relationship three: the subcontractor on your job
Subcontractors create the messiest custody questions, because machines and people mix across a site in ways nobody documents.
Two directions matter. A subcontractor operating your machine has it in their care, with everything relationship two implies. A subcontractor’s machine that your crew borrows for an afternoon is in yours, with everything relationship one implies. Both happen informally, at ground level, without anyone consulting a contract.
The fix is a subcontract that says something about equipment rather than only about insurance limits. Who may operate whose machines, who is responsible for damage during that use, and what proof of coverage is required on each side. Insurance requirements in a subcontract almost always specify liability and workers compensation limits and say nothing at all about equipment, which is the gap the exclusion sits in.
Real-World Scenario: A general contractor lends a compact loader to a concrete subcontractor for an afternoon so a pour can be finished before a weather window closes. The subcontractor’s own operator damages the loader arms against a form. The general’s liability policy excludes the machine because it was the subcontractor’s to control at the time; the subcontractor’s liability policy excludes it for exactly the same reason from the other side. The loader is covered — by the general’s own equipment floater, on the general’s own loss record, for a favor that took twenty minutes.
Relationship four: the hauler, the yard and the shop
Custody also transfers to businesses whose whole job is holding equipment, and those transfers are the best documented of the four.
A hired hauler moving your machine has it in their care while it is on their trailer. A repair shop has it while it is in the bay. A storage yard has it while it sits over a shutdown. Each of those businesses carries — or should carry — coverage for property in its care, and each of their contracts has something to say about limits and responsibility.
That does not mean you can stop thinking about it. Their limits may be low, their coverage may be narrower than you assume, and the gap defaults back to your own program. Ask for the certificate in each case rather than trusting the invoice; a hauler, a shop or a storage yard that holds equipment routinely can produce evidence of coverage on request, and the ones that cannot are telling you something useful about where the risk is going to land. Where you are doing the hauling yourself, the machine in motion belongs to transit and trailer transport, and the truck and trailer belong to commercial auto — the boundary between those two is worked out in transit coverage vs commercial auto.
Where custody is genuinely unclear
These claims are argued because custody is a factual question and facts on a jobsite are untidy. A machine parked on your site but operated only by its owner. A unit delivered early and left before anyone signed for it. A machine two crews used on the same day.
Nobody resolves that from the policy alone, which is why contract language matters more here than in most coverage discussions. A delivery receipt with a time on it, a note of who operated what, a photograph at handover — these are not formalities. They are the evidence the argument turns on, and they cost nothing while the machine is in front of you.
It is also worth knowing that the dispute is often between two insurers rather than between two contractors, which is small comfort while a machine sits idle. Both can read the same set of facts and reach opposite conclusions about who held control at the relevant moment, and the machine does not go back to work while they do it. That is the real cost of an undocumented handover — not usually an uncovered loss, but a slow one.
Where a program carries several of these relationships at once — owned machines out on loan, rented units on site, a hauler under contract — the accumulation is worth reading against your primary limits, and an umbrella layer over the program is the usual response.
Getting ahead of it
Three habits handle almost all of this. Before a machine changes hands in either direction, write down who is responsible for damage, what the machine is worth and who is insuring it. Photograph the machine at handover. And check that your own program actually carries a not-owned part, because assuming it does is the single most common error in this whole area.
None of that needs a lawyer. It needs one person on the job to treat a machine changing hands as an event worth two minutes of writing down, in the same way a delivery of materials gets a signature. The reason it does not happen is almost never cost or difficulty; it is that lending a machine feels like a favor rather than a transaction, and favors do not generate paperwork unless somebody decides they should.
To have the custody side of a program read against how machines actually move on your jobs, send the detail through the quote form. The equipment overview covers the machine classes this comes up on most, and the floater exclusions guide sorts the property-side exclusions that sit alongside this liability-side one.