For years, e-commerce importers built entire fulfillment models around one line of customs law: low-value shipments entering duty-free under the de minimis threshold. That treatment has been the subject of significant policy change, and anyone still planning around the version of the rule they learned three years ago is planning around something that may no longer apply to their freight. What has not changed is the physical problem underneath it — a container full of hundreds or thousands of individually addressed parcels still has to be pulled, opened, sorted, and handed to a carrier.

What Section 321 de minimis was, in plain terms

Section 321 of the Tariff Act, codified at 19 U.S.C. 1321(a)(2)(C), allowed an administrative exemption for shipments valued at or under a set threshold — $800 for many years — imported by one person on one day, to clear free of duty and tax with a simplified release rather than a formal or informal entry. Importers used it to ship direct-to-consumer parcels into the U.S. without paying duty on each one.

The operational consequence was that a 40-foot container arriving with consolidated e-commerce parcels could be released quickly, deconsolidated at a facility, and injected into a domestic parcel network within hours.

The rules in this area have been changing — verify before you plan

This is the part where you need your customs broker, not a blog post. The de minimis exemption has been suspended for imports across non-postal modes of transport, and Congress has separately legislated on the statutory exemption with a future effective date. Litigation has touched the question as well. The practical upshot is that low-value shipments that once moved under a simplified release may now require a formal or informal entry with duties assessed, the same as any other import.

Policy in this space has moved multiple times and can move again. Do not commit to a fulfillment model, quote a landed cost to a customer, or sign a warehouse lease based on what the rule was at any past point. Confirm the current CBP policy, the current entry type requirements, and the current duty treatment for your specific country of origin and commodity with a licensed customs broker before every planning cycle. Nothing here is customs advice.

What changes on the ground when entry treatment changes

If your parcels now require formal or informal entry rather than a simplified de minimis release, three things shift for the container’s ground leg:

1. Release timing gets less predictable

Simplified release was fast and largely automatic. Entry-based clearance introduces classification, valuation, and duty payment steps — each one a place a container can stall. That matters because the free-time clock does not care why you’re waiting. If you’re not already clear on how that count works, read what last free day means in drayage and our breakdown of demurrage, detention, and per diem.

2. Exam exposure goes up

More entries with more data elements means more opportunities for a hold. Consolidated e-commerce containers have always drawn attention because of the sheer number of distinct commodities and shippers inside one box. Plan for exam contingency as a normal cost of this freight, not an exception. Our customs exams guide for Miami importers covers what each exam type does to your schedule.

3. Deconsolidation may need to happen somewhere bonded

If cargo has not been entered and released, it generally cannot simply be broken down at any warehouse. It needs to be handled in a facility authorized to hold it. A bonded container freight station is that facility. Go Drayage is licensed by U.S. Customs under bond #LBR8, which means in-bond cargo can be received, deconsolidated, and worked under customs control instead of sitting at the terminal accruing charges.

The deconsolidation and parcel injection sequence

Regardless of entry type, the physical work is the same and it’s worth understanding what you’re paying for:

• Pull the container. Appointment, gate transaction, and a run to the CFS. In Miami that’s a short leg, which is the whole reason South Florida works for Caribbean and Latin America e-commerce flows.
• Devan and sort. The box is stripped and parcels are separated by destination carrier, service level, or induction point. This is labor-intensive and time-intensive, and a container with ten thousand small parcels takes dramatically longer than one with two hundred cartons.
• Scan and manifest. Every parcel is captured so the downstream carrier accepts it and you have a record.
• Inject. Loaded onto vans or trailers and delivered to the parcel carrier’s induction facility, or line-hauled to a regional sort.
• Return the empty. The clock on the ocean carrier’s equipment keeps running until the box is back, so this gets scheduled, not improvised.

The single biggest cost driver here is dwell between steps. A container that comes out of the port and sits three days waiting for labor costs you per diem the whole time. We run company-owned trucks and vans out of a 5-acre Miami yard with 24/7 access, so the pull, the devan, and the injection legs are scheduled against each other rather than against three separate vendors’ calendars.

What to ask a provider before you route this freight

• Are you bonded, and can you receive in-bond cargo? Ask for the bond number.
• Can you devan and sort at parcel level, or only at carton level?
• What is the realistic turn time from container pull to parcel injection, and what does it become at peak volume?
• Who handles the empty return and when?
• Can I see the container status and the devan progress without making a phone call?

That last one matters more than people expect. When entry treatment is in flux, your ability to see where a box actually is determines whether you make good decisions or guess. Everything we move shows up in Go Truck Hub in real time.

Build the ground leg so it survives a rule change

The lesson of the last few years is that customs policy on low-value imports can change faster than a supply chain can be redesigned. The freight operation that holds up is the one where the container can be pulled quickly, held under bond if it needs to be, deconsolidated in the same place it’s stored, and injected without a second carrier handoff. If you’re moving e-commerce volume through PortMiami or Port Everglades, tell us what the box looks like inside and we’ll build the ground leg around it. Get a drayage quote or see the full range of drayage services. Verify your entry requirements with your broker first.

Frequently asked questions

Is Section 321 de minimis still available for e-commerce imports?

The de minimis exemption has been suspended for imports across non-postal modes of transport, and Congress has separately legislated on the statutory exemption with a future effective date. Policy in this area has changed more than once and litigation has touched the question. Do not plan a fulfillment model or quote landed cost based on past treatment. Confirm current CBP policy and the required entry type for your specific origin and commodity with a licensed customs broker.

Why does e-commerce cargo need a bonded container freight station?

If cargo has not yet been entered and released by CBP, it generally cannot be broken down at an ordinary warehouse. A bonded container freight station is authorized to receive and work cargo under customs control, so the container can be pulled from the terminal and deconsolidated instead of sitting at the port accruing demurrage. Go Drayage is licensed by U.S. Customs under bond number LBR8.

What drives the cost of deconsolidating an e-commerce container?

Piece count and dwell. A container holding thousands of individually addressed parcels takes far more labor to devan, sort, and scan than one holding a few hundred cartons, so parcel-level work prices differently than carton-level work. Beyond that, every day the container sits between the pull, the devan, and the parcel injection adds per diem on the ocean carrier’s equipment, which is why scheduling those three legs against each other matters.