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When CBP Detains Your Shipment: An Apparel Importer's Runbook

Compliance & Customs Updated 2026-08-16· 9 min read

In brief. Under 19 C.F.R. § 151.16, CBP has 5 business days to release or detain, 5 more to issue a Notice of Detention, and 30 days from presentation to make a final admissibility determination. Miss that and the goods are deemed excluded. You then protest under 19 U.S.C. § 1514 and can sue at the Court of International Trade.

Key facts

This is the incident-response page. For the preventative version — the legal framework, the Entity List, what CBP requires before anything goes wrong — start at UFLPA compliance for apparel brands and what CBP requires. What follows assumes a container is already on hold: the statutory clocks, the four tracks CBP can code your stop under, what a detention costs per day, and the first 72 hours.

The 19 C.F.R. § 151.16 detention clock, step by step

Detention is not open-ended. The regulation imposes deadlines on CBP, and two of them convert into outcomes automatically if CBP misses them.

The table below sets out the statutory clock under 19 C.F.R. § 151.16. Day 0 is the date the merchandise is presented for examination, not the date you hear about it.

Stage Deadline What happens if CBP misses it
Merchandise presented for examination Day 0
CBP decides to release or detain Within 5 business days Failure to release = merchandise is deemed detained
CBP issues a written Notice of Detention Within 5 business days of that decision or failure The detention clock still runs from presentation
CBP makes a final admissibility determination Within 30 days of presentation No determination = merchandise is treated as excluded
Importer protests the exclusion Under 19 U.S.C. § 1514
CBP decides the protest Within 30 days No decision = protest is deemed denied
Importer sues Court of International Trade, 28 U.S.C. § 1581(a) Jurisdiction ripens on denial or deemed denial

Deemed exclusion sounds like a loss and is often a step forward: an exclusion is a protestable decision, an indefinite detention is not. If day 30 passes with no determination, you have something you can challenge.

What a CBP Notice of Detention must tell you: five required elements

The notice has mandatory contents, and importers routinely accept a vague one. Under § 151.16 it must state:

  1. The date the detention began and the date the merchandise was presented for examination.
  2. The specific reason for the detention.
  3. The anticipated length of the detention.
  4. The nature of the tests or inquiries being conducted.
  5. What information would accelerate disposition of the matter.

Items 2 and 5 are the ones to work. "The specific reason" tells you which authority CBP invoked and therefore which clock you are on. "What information would accelerate disposition" is CBP telling you in writing what to send. If either is boilerplate, have your broker press the port for specifics before you spend a week assembling the wrong package.

Four enforcement tracks, four different clocks

CBP's June 2026 consolidated guidance runs four forced-labor enforcement mechanisms under one framework, with materially different timelines and consequences. The same factory, the same shipment and the same documents produce a completely different response window depending on how CBP codes the stop.

The table below maps the four tracks. Identify yours from the Notice of Detention before doing anything else — as of the June 2026 guidance.

Track Legal basis Practical timeline Outcome if you lose
UFLPA — potential input UFLPA presumption; input suspected but not established 30 days to respond Detention converts to exclusion
UFLPA — direct input / exclusion protest UFLPA presumption; established input 180 days Exclusion; export or destroy
Withhold Release Order (WRO) 19 U.S.C. § 1307 3 months to export, destroy or prove admissibility Export or destroy
Finding 19 U.S.C. § 1307, published in the Federal Register Goods seized; forfeiture proceedings Loss of title, plus penalty exposure
CAATSA § 321A North Korean nationals presumption Separate framework Exclusion or seizure

Two practical notes. A WRO runs on a shorter, blunter clock than a UFLPA direct-input action, but the burden is easier: there is no "clear and convincing evidence" standard and no congressional reporting requirement on that track. And WRO risk is not China-specific — CBP issued WROs against two Jordanian garment producers on 23 June 2026, citing ILO forced labor indicators including passport retention, wage withholding and restriction of movement. Duty-free trade-preference status offers no protection, a vector covered in Withhold Release Orders and forced labor risk beyond Xinjiang.

Detention, exclusion and seizure are three different outcomes

Trade press uses these three words interchangeably. They describe very different positions.

Detention Exclusion Seizure
What it is Temporary hold pending an admissibility determination Denial of entry Government takes title through forfeiture
Who owns the goods You You The government
What you must do Respond within the applicable clock Export or destroy the merchandise Contest forfeiture
Direct penalty None None as such Exposure under 19 U.S.C. § 1592, plus potential criminal referral
Financial consequence Storage, demurrage, bond costs Total loss of landed cost plus re-export or destruction cost Total loss plus penalties
When it happens The start of every case The normal UFLPA outcome Under a Finding, or where fraud is suspected

The line to internalise: exclusion costs you the goods; seizure costs you the goods and starts a penalty case. Exclusion carries no penalty as such — you have simply lost everything you spent getting the goods to the port. Seizure means CBP believes something more than a documentation gap is present, and § 1592 penalties for fraud can reach the domestic value of the merchandise. Seizure is the moment for counsel, not a better spreadsheet.

What a 30-day detention costs: a worked example on one container

Compliance spend is easier to authorise when the alternative has a number on it. Duty rates below are illustrative of method — verify classification and rates against the current HTSUS.

Basis: one 40ft HC, 10,000 cotton jersey crew tees, FOB Chittagong $4.30, entered at Savannah, detained 30 days, August 2026.

Line Basis Amount
Entered value (FOB) 10,000 × $4.30 $43,000
Ocean freight 1 × 40ft, non-peak $4,500
Marine insurance 0.25% × (FOB + freight) × 1.10 $131
MPF 0.3464% × $43,000 (under the FY2026 cap) $149
HMF 0.125% × $43,000 $54
Broker entry, ISF, bond amortisation flat $325
Drayage, chassis, fuel port to DC, ~40 miles $900
Pre-shipment inspection 1 man-day $320
Goods-and-logistics cost committed, before duty sum of the eight lines above $49,379
Demurrage, days 6–10 5 days × $150 $750
Demurrage, days 11–30 20 days × $350 (tiered rate) $7,000
Total exposure at day 30 committed cost + demurrage $57,129
Memo — duty, MFN 6109.10.00 16.5% × $43,000 $7,095
Memo — duty, Section 301 forced-labor tier 1 (Bangladesh) 10% × $43,000 $4,300
Memo — duty, total 26.5% × $43,000 $11,395

The three duty lines sit below the total on purpose: they are shown for scale and are excluded from the $57,129. Duty is deposited when the entry is filed, and merchandise that is excluded is exported or destroyed rather than entered for consumption, so duty is not part of what you lose. Add the three memo lines back only if you are modelling a shipment that is eventually released.

Demurrage uses published 2026 North American ranges of roughly $100–500 per container per day, tiered so days 8 and beyond run two to three times the days 1–3 rate. Free time varies by carrier and terminal; five days is assumed. Read the result three ways:

For wider context, the testing provider Oritain estimated in 2024 that a single detention case can exceed $810,000 in associated costs. That is a single-source vendor estimate covering legal fees, remediation and lost sales as well as freight — an order-of-magnitude signal, not a benchmark.

Bonds: why CBP can demand three times the value of detained goods

Two bond issues arise during a detention, and both catch importers who have only ever thought about their continuous bond.

Single-transaction bonds at 3× value. CBP may require a single-transaction bond equal to three times the value of the detained merchandise under 19 C.F.R. § 113.62. On the container above, that is 3 × $43,000 = a $129,000 bond on a $43,000 shipment. Ordinary single-transaction bonds are quoted from roughly $50 to $500 and upward; a bond at this multiple is a different underwriting conversation with your surety, and not one to start on day 29.

Continuous bond sufficiency. A continuous bond must be at least 10% of duties, taxes and fees paid in the previous 12 months, rounded up to the nearest $10,000, floor $50,000. The 2025–26 tariff layers roughly doubled effective apparel duty rates, pushing many brands into insufficiency unnoticed — which triggers CBP notices and port holds of its own. Detail sits in customs bonds for apparel importers.

Protest, deemed denial, and the Court of International Trade

If CBP excludes the merchandise — by decision or by letting the 30-day window lapse — the route out is procedural and time-bound.

  1. File a protest under 19 U.S.C. § 1514 against the exclusion. Mandatory first step; you cannot go straight to court.
  2. CBP has 30 days to decide. If it does not, the protest is deemed denied — administrative silence that works in your favour, because it produces a reviewable decision on a fixed date.
  3. Sue in the U.S. Court of International Trade under 28 U.S.C. § 1581(a), the CIT's jurisdiction over denied protests.

Understand what this route is for. Litigating an exclusion at the CIT takes far longer than seasonal goods can economically wait, so in practice the protest route preserves rights and resolves programme-level questions that will recur across many shipments. For a single detained order, the commercial decision gets made on the numbers in the previous section, not in court.

The first 72 hours after a detention notice

  1. Hours 0–2: read the notice for the coded track. Identify the authority — UFLPA potential input, UFLPA direct input, WRO, Finding or CAATSA. That single detail sets your deadline at 30 days, 180 days or 3 months.
  2. Hours 0–4: docket every date in writing. Presentation date, detention date, notice date, the 30-day § 151.16 determination deadline, your track-specific deadline. Missed deadlines, not weak documents, are what convert a detention into an exclusion.
  3. Hours 2–8: engage counsel and your broker together. The broker owns the port relationship and the entry record; counsel owns submission strategy and the protest. Confirm in writing who files what. The importer of record stays liable regardless.
  4. Hours 4–12: stop the meter. Ask whether hold-in-place at a bonded facility is available instead of terminal detention, and price it against accruing demurrage.
  5. Hours 8–24: pull the traceability file for the affected order — flowchart, gin tickets and bale IDs, yarn lots, roll IDs, cutting tickets, POs, payment proof, transport documents — and identify gaps immediately. Building it in advance is covered in how to build the cotton traceability file before you need it.
  6. Hours 24–48: choose applicability review or exception. Arguing you are out of scope is a different submission from conceding a nexus and proving no forced labor by clear and convincing evidence. Most importers should build the former.
  7. Hours 24–72: chase unredacted originals and certified translations. CBP will not accept redacted records or untranslated documents, and translation turnaround is a real constraint against a 30-day clock.
  8. Hours 48–72: model the money and set a walk-away point. Accrued demurrage, bond cost, re-export or destruction cost and unrecovered landed cost, against the cost of fighting. Decide in writing, now, when you export rather than litigate.

Terms above are defined in the Yarnstick glossary of sourcing and customs terms.

What CTPAT Trade Compliance may buy you at the port

Reported benefits of CTPAT Trade Compliance membership for forced-labor cases include front-of-line review of admissibility packages, hold-in-place authority rather than terminal detention, preliminary notifications, and 48-hour advance notice of new enforcement actions. Hold-in-place alone would remove most of the $7,750 demurrage line above.

Hedge this appropriately: that benefit list comes from a single source, not a primary CBP publication we have verified. Confirm current programme benefits with CBP before treating membership as a mitigation strategy. Membership also carries obligations and audit exposure, and does nothing about whether your file traces to the gin.

Frequently asked questions

How long does CBP have to decide on a detained shipment?

Thirty days from the date the merchandise is presented for examination. Under 19 C.F.R. § 151.16, CBP must decide to release or detain within 5 business days, issue a written Notice of Detention within 5 business days of that decision, and reach a final admissibility determination within 30 days of presentation. No determination in 30 days means the goods are deemed excluded.

What must a CBP Notice of Detention actually say?

Five things: the date the detention began and the date the merchandise was presented; the specific reason for the detention; the anticipated length of the detention; the nature of the tests or inquiries being conducted; and what information would accelerate disposition. If the notice is vague on the specific reason, that is the first thing to press your broker to clarify with the port.

What is the difference between detention, exclusion and seizure?

Detention is a temporary hold pending an admissibility decision, and you pay the storage. Exclusion is denial of entry — the goods must be exported or destroyed, with total loss of landed cost but no penalty as such. Seizure transfers title to the government through forfeiture proceedings and exposes you to 19 U.S.C. § 1592 penalties and possible criminal referral.

Who pays demurrage while CBP holds my container?

You do. The importer bears all storage and demurrage costs throughout a detention and any subsequent challenge, regardless of whether the goods are eventually released. On a 30-day hold, published 2026 North American demurrage ranges of roughly $100–500 per container per day, tiered upward after the first week, can add several thousand dollars before any decision is made.

Can I sue CBP over an excluded shipment?

Yes, after exhausting the protest route. You protest the exclusion under 19 U.S.C. § 1514. If CBP does not decide the protest within 30 days it is deemed denied, which ripens your right to bring an action in the U.S. Court of International Trade under 28 U.S.C. § 1581(a). Deemed denial is a feature of this route, not a failure of it.

Why do two identical UFLPA detentions have different deadlines?

Because CBP codes them differently. Under the June 2026 operational guidance, a UFLPA potential-input detention carries a 30-day response window, a direct-input or exclusion protest runs 180 days, a Withhold Release Order gives 3 months to export, destroy or prove admissibility, and a Finding results in seizure. Same factory, same documents, different clock.

Does CTPAT membership help if my shipment is detained?

Reported benefits of CTPAT Trade Compliance include front-of-line review of admissibility packages, hold-in-place authority instead of terminal detention, preliminary notifications, and 48-hour advance notice of new enforcement actions. That comes from a single source, so treat it as indicative and confirm current benefits with CBP before building a plan around it.

This article is informational and is not legal advice. Tariff classifications, duty rates and admissibility determinations are fact-specific — verify against the current HTSUS and consult a licensed customs broker or trade counsel before relying on any figure here.

Sources

If you are reading this because a container is already on hold, the useful next step is a review of what your file actually contains against CBP's document list.

Get a traceability file review