Both of these coverages do the same basic job: they pay to repair or replace a trailer you pull but don't own when it's damaged in your care, collision, fire, theft, vandalism, overturn. The confusion, and the denied claims, come from what has to be true for each one to respond. One is triggered by a written contract. The other is triggered by simply having the trailer. That single difference is why we put most clients on non-owned trailer physical damage, and why we spend so much time correcting contract language that asks for the wrong one.
Trailer interchange (TI): triggered by a written agreement
Trailer interchange coverage pays for physical damage to a non-owned trailer while it is covered under a written trailer interchange agreement. The name is literal. It comes from carriers interchanging equipment, one company handing its trailer to another under a signed contract that spells out who's responsible for it. The interchange agreement is the trigger. On-hook or dropped, fault or no fault, TI responds to the trailer as long as that written agreement is in force.
That works cleanly in the world it was built for: rail ramps, drayage, and carrier-to-carrier equipment swaps where a formal interchange agreement actually exists on paper. The problem is that most trucking today doesn't look like that.
Non-owned trailer physical damage (NOTPD): triggered by possession
Non-owned trailer physical damage pays for the same perils on the same non-owned trailer, but it does not require a written interchange agreement. The trigger is that the trailer is in your care, custody, and control. Borrowed a trailer from another carrier? Pulling a fleet's trailer under a load agreement? Using a shipper's trailer with nothing signed about the equipment itself? NOTPD responds. Possession is the trigger, not paperwork.
Same limits (commonly $25,000–$50,000), same covered perils, broader trigger.
Get non-owned trailer coverage that pays without the paperwork
Why we prefer NOTPD
Here's the trap we see at claim time. An owner-operator pulls a company or shipper trailer for months, wrecks it, and files under a trailer interchange policy, only to have the adjuster ask for the written interchange agreement. There isn't one. Nobody signed an equipment interchange contract; there was a load, a dispatch, and a trailer. TI can deny on that basis, because its trigger, the agreement, was never in force.
NOTPD doesn't care. The trailer was in your possession and it got damaged, so it pays. For the way most owner-operators and small fleets actually run, pulling other people's trailers without a formal interchange contract, NOTPD is simply the more reliable coverage. It closes the exact gap that gets TI claims denied.
There's a narrow set of operations that genuinely need the TI form by name, usually intermodal and drayage work where the interchange agreement is real and the facility or UIIA contract specifically demands trailer interchange. If that's you, you need TI, and we'll write it. For everyone else, NOTPD is the safer default.
| Trailer interchange (TI) | Non-owned trailer physical damage | |
|---|---|---|
| What it covers | Physical damage to a non-owned trailer | Physical damage to a non-owned trailer |
| Trigger | A written interchange agreement in force | Trailer in your care, custody, and control |
| Needs signed equipment contract? | Yes | No |
| Best fit | Intermodal, drayage, formal carrier swaps | Owner-operators and fleets pulling others' trailers |
| Typical limit | $25k–$50k | $25k–$50k |
About Amazon (and everyone who "requires TI")
This is the question we get most. A shipper or broker, Amazon Relay is the common one, publishes an insurance checklist that lists trailer interchange at a set limit (Amazon's is $50,000 when you're power-only), and truckers assume they're locked into a TI policy. In practice, companies that require TI almost always accept non-owned trailer physical damage in its place, because NOTPD gives them equal or broader protection on their trailer while it's hooked to your truck. We list the coverage on your certificate in the form they accept, and it satisfies the requirement.
Amazon Relay is the clearest example: the checklist says "Trailer Interchange," but Amazon accepts NOTPD, and we deliberately put you on NOTPD instead. Here's why it matters for you, not just Amazon: if that Amazon trailer gets damaged on your watch and you're on a TI policy, the adjuster's first move is to ask for the signed interchange agreement, which, running Relay loads, you almost certainly never signed. NOTPD pays on possession, so there's nothing to track down. Same requirement cleared, far less risk of a denied claim. (The full Amazon coverage checklist is in Amazon Relay insurance requirements, decoded, and if you're just getting set up, how to get started as an Amazon Relay carrier.)
So if your contract says "Trailer Interchange $X" and you're worried you can't run without a policy by that exact name, relax. Tell us who's asking and what limit they want. In the vast majority of cases we put NOTPD on the COI, the requirement clears, and you're covered on a trigger that won't leave you hunting for an interchange agreement that was never signed. If a particular contract truly insists on the TI form, we'll write that instead. Either way, you shouldn't be the one guessing.
Get an Amazon-ready quote with NOTPD
Don't confuse either one with cargo
Both of these cover the trailer, the equipment, not the freight inside it. The load is motor truck cargo, a separate coverage with its own limit and its own requirements. A rollover that destroys a borrowed trailer and its freight is two claims on two coverages. Make sure you carry both.
How McClure helps
Send us the insurance requirements you were handed, the Amazon Relay checklist, the broker's setup packet, the shipper's contract, and we'll tell you exactly which trailer coverage clears it and put it on your certificate in the form they accept. Most of the time that's non-owned trailer physical damage, priced right and triggered on possession, not paperwork. Already covered and just need it shown to a shipper? Request a COI and we'll turn it around the same day.