An importer logistics manager who has never moved a container through a Foreign Trade Zone usually has the concept half-right. The right half: duty deferral. The wrong half: almost everything else — what an FTZ legally is, how it differs from a CBP-bonded warehouse, what paperwork governs movement into the zone, and what the drayage carrier does to keep bonded status intact from terminal to zone receiving. This guide walks through those distinctions for the five Atlantic Coast FTZs Ramar drays through.
What a Foreign Trade Zone is, and what it isn't
A Foreign Trade Zone, established under the Foreign Trade Zones Act of 1934 and administered by the FTZ Board under the Department of Commerce, is a defined geographic area inside the United States that — for customs and duty purposes — is treated as outside U.S. customs territory. Goods admitted to an FTZ have not legally entered the country for duty assessment. They can be stored, inspected, repackaged, manipulated, manufactured into finished goods, or re-exported, without paying duty until and unless the goods leave the zone for U.S. consumption.
What an FTZ is not is a CBP-bonded warehouse. The two are related but legally distinct. A CBP-bonded warehouse — governed under 19 CFR Part 19 — stores imported merchandise that has formally entered U.S. customs territory but on which duty has not yet been paid. The merchandise sits under bond; the importer can defer duty for up to five years; the operator is responsible to CBP until withdrawal or re-export. An FTZ goes further: the goods have not entered customs territory at all. The duty clock does not start. Manipulation and manufacturing are permitted in ways a bonded warehouse cannot accommodate.
For an importer, the practical question is which posture fits the cargo. High-value, long-dwell, manipulation-intensive, or potentially re-exported freight tends to favor an FTZ. Shorter-dwell, no-manipulation, deferred-duty inventory often runs cleanly through a bonded warehouse.
The five Atlantic Coast FTZs Ramar drays through
Five of the eight commercial ports in Ramar's Atlantic Coast network sit inside an active Foreign Trade Zone. From north to south:
FTZ #35 — Philadelphia. Covers Philadelphia and surrounding southeastern Pennsylvania counties; grantee is PhilaPort. Class 8 chemical freight from BASF and Dow consolidation flows, and Class 9 lithium freight from Wistron and EVE Energy distribution lanes, are the most common profiles Ramar drays into FTZ #35.
FTZ #66 — Wilmington, North Carolina. Covers Wilmington and the surrounding coastal-plain counties — Ramar's home port. Forest products, automotive components for Mercedes-Benz and BMW export flows, and other containerized commercial freight run bonded movement into FTZ #66 sites.
FTZ #21 — Charleston. Covers the Port of Charleston and the upstate South Carolina industrial corridor. Subzones support Volvo's Charleston-area assembly, the BMW Spartanburg supply chain, Scout Motors in Blythewood, and Redwood Materials capacity. Charleston is the heaviest battery-and-EV bonded-movement origin in the network.
FTZ #104 — Savannah. Covers the Savannah port complex and extends inland through much of metropolitan Atlanta. Subzones support Hyundai Metaplant America in Bryan County, SK Battery in Commerce, and a deep roster of consumer-goods importers along the I-16 and I-75 corridors.
FTZ #64 — Jacksonville. Covers JAXPORT and the surrounding northeast Florida industrial belt. Subzones support fireworks-distribution importers and other Class 1 / Class 8 freight in the I-95 Florida corridor.
Each zone supports both general-purpose-zone storage and importer-specific subzones. Many of the largest customers Ramar serves operate subzones at their own facilities, with the boundary drawn around the warehouse footprint rather than a port-adjacent district.
Bonded movement vs FTZ activation
The two paperwork vocabularies sit next to each other and are not the same.
Bonded movement — also called in-bond movement — is the regulated transfer of imported goods from one bonded location to another, under CBP supervision, before formal customs entry. The governing instrument is the CBP Form 7512, the in-bond transportation manifest. Freight remains in CBP custody throughout; the bonded carrier of record is responsible for delivering it intact with seal integrity preserved. An in-bond movement can run from a port terminal to a bonded warehouse, to an FTZ, between two FTZ sites, or to an inland CBP port of entry.
FTZ activation is the act of admitting goods into the zone. Admissions are reported to CBP on a Form 214, the Application for Foreign Trade Zone Admission. The goods then sit under FTZ status until withdrawn — for U.S. consumption, in which case duty is assessed on the Form 7501 entry summary, or for export, in which case no duty is owed.
For the drayage leg, the distinction is straightforward. A truck carrying freight from terminal gate to FTZ subzone is executing a bonded movement under a 7512. The 214 paperwork is filed at the receiving end by the FTZ operator, not by the drayage carrier. The carrier's job is to deliver the seal intact and the manifest reconciled. A break invalidates the bonded movement and exposes the importer to duty assessment before the freight ever crosses the FTZ boundary.
What this saves
For an importer running Class 8 chemical freight through Charleston, duty savings on a single high-value container can be substantial. Specialty industrial chemicals at common HTS lines run at rates that, against six-figure declared values, produce four-to-five-figure duty obligations per box. Deferred against an inventory turn measured in months, the working-capital impact compounds — and if a portion is re-exported to a Latin American or Caribbean customer, the duty is avoided entirely rather than refunded through drawback.
For a Class 9 lithium battery importer running cells from Korea or China through Charleston or Savannah, the same arithmetic applies. The 49 CFR § 173.185 cargo profile does not change customs treatment; a Class 9 container into an FTZ subzone defers duty against cell value just as a Class 8 container does. For a manufacturer processing cells into finished packs inside the subzone and re-exporting a portion of the output, duty inversion savings can become meaningful: the rate on finished packs may be lower than the rate on raw cells, and the importer may elect to pay the lower rate on withdrawal for U.S. consumption.
The savings are real, but they assume the bonded chain held. A break — a seal compromised in transit, a manifest discrepancy at receiving, a handoff that put freight under an unbonded carrier — voids the FTZ admission and triggers a normal entry. The duty becomes due, the deferral evaporates, and the importer absorbs the cost of resolving the hold.
What the carrier must do for bonded drayage
A drayage carrier moving freight under bond carries a defined set of responsibilities, and the freight cannot legally move under any operator that does not meet them.
The carrier must hold an active CBP custodial bond in good standing. The in-bond movement runs under a CBP Form 7512 manifest generated against the original entry, with bonded entry number, originating port, receiving location, and seal numbers reconciled to the bill of lading. The container seal must be preserved from terminal departure to receiving with no intervening break, and the trailer must not be dropped at any intermediate location outside the bonded chain — no public yard, no unbonded transload, no broker-arranged staging. On arrival, the manifest is surrendered to the receiving operator for the formal closing of the in-bond movement and opening of either the FTZ admission or the warehouse entry.
Ramar holds the CBP bonded carrier status required for that work. Drayage from the eight Atlantic Coast commercial ports — including the five FTZ-active ports above — runs under our USDOT and our CBP bond as an integrated movement. Not subcontracted, not double-brokered, not handed off to a partner drayman. The seal applied at terminal departure is the seal the FTZ operator inspects at receiving.
Where Ramar fits
The integrated chain is the operating value here. An importer running chemical or battery freight through any of the five FTZ-active ports can buy port drayage, in-bond movement, optional dangerous-goods transload, and onward delivery as one contract under one CBP bond and one USDOT. Documentation continuity from the originating bill of lading through the 7512 manifest through the 214 admission stays inside one operator's records.
The alternative — broker, drayman, transload provider, final-mile carrier — fragments the bonded chain across vendors who do not share a bond, do not share a manifest, and do not share a single point of accountability when CBP raises a question. For an importer logistics manager, freight forwarder customs coordinator, or supply chain director whose duty deferral depends on the bonded chain holding, that is the difference between a clean entry and an unanticipated assessment.