Every chassis you pull at Port Miami belongs to a pool, not to the carrier that hired you. The document that decides who eats the cost when that chassis comes back damaged is the Uniform Intermodal Interchange and Facilities Access Agreement. Most drivers call it UIIA and have never read a page of it.
What UIIA Actually Covers
Chassis at Port Miami don't belong to any single trucking company. They sit in pools run by chassis providers: DCLI, TRAC Intermodal, Flexi-Van. Whoever needs one that day grabs it. UIIA is the contract that lets a motor carrier legally pull equipment from those pools. Without a signed UIIA on file, a carrier can't interchange chassis at all.
The agreement sets the rules for the handoff: who inspects the chassis before it leaves the depot, who's responsible for damage found during interchange, what insurance the carrier has to carry, and how disputes over broken lights, cracked frames, or bad tires get resolved. It's a standardized industry contract. The same base agreement gets used at ports all over the country, with intermodal marine terminals and railroads as the counterparties.
Who Signs It and Why It Matters to You
The motor carrier signs UIIA with each equipment provider, not the individual driver. If you're an owner-operator running under a carrier's authority, you're covered by whatever UIIA that carrier has on file. If you're leased on or running as an independent contractor, check which entity holds the agreement before you assume you're protected.
Where Liability Actually Lands
UIIA splits liability by when damage happened relative to the interchange. Damage that existed before you took the chassis belongs to the equipment provider. Damage that happens while it's on interchange to your carrier belongs to your carrier — and depending on your lease, to you.
The problem is proving which bucket the damage falls into. A cracked mud flap or bent ICC bar is easy to miss during a rushed gate pull. If it's not documented at pickup, the provider can argue it happened on your watch. That's how a $40 part turns into a contested $600 damage bill weeks after you dropped the chassis off.
The Interchange Inspection Is Your Only Defense
UIIA requires a pre-trip interchange inspection, and it's the single most important five minutes of the whole chassis transaction. Walk the chassis before you hook up. Photograph anything that looks off, even if it seems minor.
- Tires — check tread depth, sidewall cracks, and any obvious low pressure
- Lights and reflectors — every light works, no cracked housings
- Frame and rails — no visible cracks, bends, or missing bolts
- Landing gear — cranks freely, pads aren't bent or missing
- ICC bar and mud flaps — present, not hanging, not cracked
- Pintle hook and locking pins — engage and lock properly
Note anything wrong on the interchange receipt before you sign it. A phone photo with a timestamp is worth more than an argument three weeks later. Terminals move fast and gate clerks won't slow down for you, but the ten extra minutes you spend documenting a bad chassis is cheaper than a disputed damage bill.
Insurance Requirements Under UIIA
UIIA sets minimum insurance the signing carrier has to maintain to interchange equipment — typically auto liability and cargo coverage at levels the equipment providers require, plus physical damage coverage on the chassis itself while it's in the carrier's possession. Providers verify this coverage before adding a carrier to their approved list, and lapses can get a carrier's interchange privileges suspended.
If you're leasing equipment or running under someone else's authority, ask to see proof that carrier's UIIA status is active and their insurance is current. A carrier with lapsed coverage can get shut out of chassis pools mid-run, leaving you stuck at a terminal with no way to pull equipment.
What This Means for You at the Gate
UIIA is background paperwork until something goes wrong, and then it's the only thing that determines whether you owe money for a chassis you didn't damage. Inspect before you hook, document what you find, and know whether your lease pushes chassis liability down to you personally.
One A Trucks maintains active UIIA agreements with the major chassis providers serving Port Miami and Port Everglades, and our drivers run pre-trip interchange inspections on every pull. If you're an owner-operator weighing whether to run under our authority, ask us how we handle chassis damage disputes before you sign anything.