The risks in an international move, and who sends the invoice.

The shape of the problem

A moving quotation prices the work someone expects to do. The risks below are what happens when the shipment stops moving: a box waits, and waiting has an owner. The question that decides your exposure is not whether delays happen — they do — but which party’s clock is running while they do, and whether your quotation says who settles the bill when it stops.

Almost none of this is visible in a headline price. It sits in the carrier’s tariff, the destination agent’s schedule of ancillary charges, and the paragraph in your terms that begins “charges beyond our control”. Ask before booking and these are answerable questions. Ask afterwards and they are invoices.

Demurrage and detention: two clocks, not one phrase

These two words are used interchangeably in conversation and mean different things on an invoice. Both are charges for time, but they measure the time of different assets in different places, and the event that separates them is the moment the container leaves the terminal gate.

Demurrageis charged while your container is still inside the terminal after its free time has run out — you are occupying the port’s ground. Detentionis charged once it has left and not yet come back empty — you are holding the carrier’s equipment. A shipment can incur both, in sequence, from the same delay.

The United States collapses the distinction for billing purposes. 46 CFR 541.3 defines demurrage or detention as any charge, including per diem, related to the use of marine terminal space or shipping containers — and expressly not freight charges. That matters when you are reading a quotation: a line described as freight cannot quietly be either of these.

What a US invoice has to contain

46 CFR 541.6sets out the minimum information on a demurrage or detention invoice in a US trade — 17 items across five groups. The last group is the one most people have never seen.

Two of those certifications are worth reading twice. The billing party must state that the charge complies with the Commission’s demurrage and detention rules, and that its own performance did not cause or contribute to the charge it is billing you for.

The consequences of getting it wrong sit with the biller, not with you. 46 CFR 541.5 is blunt: failure to include any of the required minimum information eliminates any obligation of the billed party to pay the charge. 46 CFR 541.7(a)adds a deadline — the invoice must be issued within 30 calendar days of the date the charge was last incurred, and if it is not, you are not required to pay it. 46 CFR 541.8 then gives you at least 30 calendar days from issuance to ask for mitigation, a refund or a waiver, and obliges the billing party to attempt to resolve that request within 30 days.

Separately, 46 CFR 545.5(c) sets out an incentive principle: in judging whether a demurrage or detention practice is reasonable, the Commission considers how far the charge is actually serving its purpose of keeping freight moving. Two applications of that principle matter to a household shipment. Under 46 CFR 545.5(c)(2)(ii), imposing detention when it cannot incentivise anything — such as when empty containers cannot be returned — is likely to be found unreasonable, absent extenuating circumstances. Under 46 CFR 545.5(c)(2)(iv), the Commission may consider the same question in the context of government inspections.

Before the box even sails

Three risks sit upstream of the terminal, and all three are easier to mistake for a settled fact than the ones above.

A shared-container shipment meets these differently from a sole-use one: consolidation adds a waiting step before departure, while a sole-use container departs on its own booking. Neither is safer; they fail in different places.

None of these is unusual and none implies anyone has behaved badly. The failure mode is quieter: a date treated as fixed by the customer and as indicative by everyone else. Establish which it is in writing, and the same event becomes a rescheduling conversation instead of a dispute.

A customs examination, and the invoices that follow it

If US Customs and Border Protection selects your container for physical examination, it is moved to a centralized examination station. Under 19 CFR 118.1a CES is “a privately operated facility, not in the charge of a Customs officer, at which merchandise is made available to Customs officers for physical examination”. Both halves of that sentence do work: the examination is the government’s, the building is a business’s.

PriceTransfer, Inc. is one such operator. It describes itself as running Centralized Examination Station Y265 serving the ports of Los Angeles and Long Beach, with CBP, AQI/CBPA and FDA officers stationed on site. That is the company’s own description of its facilities; we have not assessed its service, and naming it is not a recommendation or a criticism. The point is structural rather than particular to any one operator: when a station handles your container, you are dealing with a private company under a CBP agreement, not with CBP.

That is why the charge reaches you the way it does. 19 CFR 118.4(c) provides that the operator assesses fees from the schedule in its approved application and bills users directly. So the examination itself is not something you were quoted for, could decline, or can appeal on cost grounds — but the schedule behind the bill is a filed document. 19 CFR 118.5requires 90 calendar days’ written notice to the port director before an operator changes it, with a justification, public comment and the port director’s approval. A fee schedule with that much process around it is one you can reasonably ask to see.

The examination rarely arrives alone. The container has to be carted to the station and back; the station charges for devanning, presentation and restuffing; demurrage may keep running at the terminal throughout, which is where 46 CFR 545.5(c)(2)(iv) becomes relevant; and if the delay pushes past your agreed delivery window, the shipment goes into storage. Four parties, four invoices, one decision none of them made.

Storage in transit, cartage and store handling

Storage in transit— SIT — is warehousing of your shipment partway through the move, usually because the destination residence is not ready or the shipment has been held up. It is routinely offered as a convenience and routinely misread as a single daily rate.

Storage arranged as a service is a different proposition from storage forced on you by a delay, but it is billed the same way, and it is normally three charges, not one. There is the cartage to move the shipment from the port or terminal to the warehouse. There is store handling, charged for taking the shipment into the warehouse and again for taking it out — in and out are commonly separate lines. Then there is the storage itself, per period, usually against volume or against a number of containers or vaults. A quotation that gives you a weekly storage rate and nothing else has priced the least significant of the three for a short stay.

Storage also interacts with the clocks above. Moving a shipment into a warehouse can be what stops demurrage accruing, because it gets the container collected, stripped and returned. Whether that is worth doing is an arithmetic question — the storage chain against the daily charge it avoids — and it is one your agent can work out for your shipment if you ask them to show the comparison.

What to do with this

Timing is where most of this surfaces, so read it alongside how an international move’s dates are built up and how a household shipment is measured and classified. The practical value of knowing the mechanisms is that it changes what you ask for, and when. Six requests, all of which are reasonable to make before you commit:

• Ask for the free time at the destination port in days, and the daily rate after it, in writing, before booking rather than after discharge.
• Ask whether the sailing is confirmed or requested, and what a roll does to both your dates and your price.
• Ask how long the rate is valid and what triggers a re-quote.
• Ask who is billed and who settlesa destination charge your mover did not cause — an examination, a port delay — and whether it is passed through at cost or with a handling margin.
• Ask for the storage chain in full: cartage in, handling in, storage, handling out, cartage out.
• On a US import, keep any demurrage or detention invoice and check it against 46 CFR 541.6 before paying it. If it is incomplete, or arrived more than 30 days after the charge last accrued, say so in writing within your 30 days.

None of this prevents a delay. What it does is decide, in advance and on the record, who absorbs the cost of one — which is the part that is actually negotiable. Comparing quotations properly covers the same discipline applied to the price as a whole.

Sources

Regulatory text was read from the eCFR as current at 1 October 2026 and retrieved on 27 October 2026. This article explains how these rules work; it is not legal advice, and a dispute about a specific invoice should go to someone qualified to advise on it.

• 19 CFR 118.1 — Centralized examination stations — definition. A CES is a privately operated facility, not in the charge of a Customs officer, at which merchandise is made available to Customs officers for physical examination.
• 19 CFR 118.4(c) — Responsibilities of a CES operator. The operator assesses service fees as set out in the fee schedule in its approved application, and bills users directly for services rendered.
• 19 CFR 118.5 — Procedures for changes to a fee schedule. A CES operator must give the port director 90 calendar days' written notice of a fee change with a justification; the public is invited to comment and the port director decides whether to approve it.
• 46 CFR 541.3 — Demurrage and detention — definition. Demurrage or detention means any charge, including per diem, related to the use of marine terminal space or shipping containers, but not including freight charges.
• 46 CFR 541.6 — Contents of a demurrage or detention invoice. The invoice must carry identifying, timing, rate and dispute information, and certifications that the charge complies with the Commission's rules and that the billing party's own performance did not cause or contribute to it.
• 46 CFR 541.5 — Failure to include required information. Failure to include any of the required minimum information eliminates any obligation of the billed party to pay the charge.
• 46 CFR 541.7(a) — Issuance of demurrage and detention invoices. A billing party must issue the invoice within 30 calendar days of the date the charge was last incurred; if it does not, the billed party is not required to pay.
• 46 CFR 541.8 — Requests for fee mitigation, refund or waiver. The billed party gets at least 30 calendar days from issuance to request mitigation, refund or waiver, and the billing party must attempt to resolve it within 30 days of receiving the request.
• 46 CFR 545.5(c) — Incentive principle. In assessing whether a demurrage or detention practice is reasonable, the Commission considers the extent to which the charge serves its intended purpose as a financial incentive promoting freight fluidity.
• 46 CFR 545.5(c)(2)(ii) — Empty container return. Absent extenuating circumstances, imposing detention when it cannot serve its incentivising purpose — such as when empty containers cannot be returned — is likely to be found unreasonable.
• 46 CFR 545.5(c)(2)(iv) — Government inspections. In the context of government inspections, the Commission may consider the extent to which demurrage and detention are serving their intended purposes, and may consider extenuating circumstances.
• PriceTransfer, Inc. — Centralized Examination Station Y265. PriceTransfer describes itself as operating Centralized Examination Station Y265 serving the ports of Los Angeles and Long Beach, with CBP, AQI/CBPA and FDA officers stationed on site. This is the company's own description of its facilities, not an IMC assessment of it.