If you operate — or plan to operate — as an intermodal drayage carrier at the Port of Miami, understanding the UIIA isn't optional. The UIIA is the industry-standard agreement that governs how motor carriers interchange containers and chassis with ocean carriers, railroads, and equipment providers.
What Is the UIIA and Why Does It Matter?
The UIIA is a single, standardized agreement that replaces the need for individual interchange contracts between every motor carrier and every equipment provider. Before the UIIA existed, a carrier picking up containers from five different steamship lines at PortMiami needed five separate interchange agreements — each with different insurance requirements, damage inspection protocols, and liability terms.
Today, the UIIA covers over 50 ocean carriers, all Class I railroads, and dozens of chassis providers under one agreement. For a drayage carrier working the Port of Miami, UIIA participation is the gateway to terminal access — without it, you cannot interchange containers or chassis at any UIIA-participating facility.
Who Needs to Be a UIIA Participant?
Any motor carrier that picks up or returns intermodal containers or chassis at marine terminals, rail ramps, or equipment depots that participate in the UIIA program. In practical terms, this means every drayage carrier operating at PortMiami, Port Everglades, and virtually every major port and rail facility in the United States.
If you're a trucking company that only handles domestic freight (no intermodal containers), you don't need UIIA participation. But the moment you touch a shipping line's container or a chassis pool's equipment, you need to be a registered UIIA participant.
UIIA Registration Requirements
To register as a UIIA motor carrier, you must meet several baseline requirements:
The Registration Process
The UIIA registration process is administered by IANA and typically takes two to four weeks:
Step 1: Create an account on the IANA website and complete the motor carrier application.
Step 2: Provide your MC number, SCAC code, and company details.
Step 3: Have your insurance provider submit certificates of insurance directly to IANA. This is where most delays occur — the certificates must match IANA's format requirements exactly, and any discrepancy triggers a rejection.
Step 4: IANA reviews the application and verifies your FMCSA status, SCAC validity, and insurance compliance.
Step 5: Once approved, you receive active UIIA status and can interchange equipment at participating facilities.
Common delays include insurance certificate formatting errors, lapsed SCAC codes, discrepancies between your FMCSA records and application details, and failure to include required endorsements.
Maintaining UIIA Compliance
Getting registered is only the beginning. Maintaining active UIIA status requires ongoing compliance:
Insurance renewals: Your insurance must remain active and current at all times. If your policy lapses or your insurer fails to file a renewal certificate with IANA, your UIIA status can be suspended — sometimes without advance warning.
SCAC renewal: SCAC codes must be renewed annually through NMFTA. A lapsed SCAC code will trigger UIIA suspension.
Equipment provider endorsements: Individual ocean carriers and chassis providers can add specific endorsements or requirements beyond the base UIIA agreement. You must comply with these additional terms to interchange equipment with those specific providers.
Damage and inspection compliance: The UIIA includes detailed protocols for equipment inspection at interchange. Drivers must inspect containers and chassis at pickup and document any pre-existing damage. Failure to follow these protocols can result in liability for damage you didn't cause.
What Happens If Your UIIA Status Lapses?
If your UIIA participation is suspended or revoked, you cannot interchange containers or chassis at participating terminals. In practical terms, this means you cannot perform drayage at PortMiami, Port Everglades, or any other major port facility.
Suspension can happen quickly — sometimes within days of an insurance lapse — and reinstatement requires resolving the underlying issue and reapplying. During the suspension period, any containers you're scheduled to pick up will need to be reassigned to another carrier, causing delays and potentially triggering demurrage for your customers.
For established drayage operations, a UIIA lapse is a business-critical event. It's not just a compliance checkbox — it's your license to operate at the port.
UIIA and Shipper Due Diligence
If you're a shipper, freight forwarder, or BCO evaluating drayage carriers at the Port of Miami, UIIA participation status is one of the first things to verify. A carrier without active UIIA standing simply cannot perform intermodal drayage — regardless of what their sales team tells you.
Ask for the carrier's SCAC code and verify their UIIA status directly through IANA. Confirm that their insurance meets not just UIIA minimums but your own cargo value requirements. And ask whether they maintain endorsements with the specific ocean carriers whose containers you ship on.
At New Roads Logistics, we maintain full UIIA compliance across all major equipment providers serving PortMiami. Our operations team monitors insurance filings, SCAC renewals, and endorsement updates continuously — because a lapse doesn't just affect us, it affects every shipper counting on their cargo to move.