$500 idea · Pattern break · Edition 019
Carriers refunded $2,890,000 last year to the 164 complainants who bothered to ask.
The Federal Maritime Commission’s own FY2025 accountability report records 296 charge complaints received in the whole United States, of which 164 qualified, and “$2.89 million in refunded, waived, or cancelled charges.” Three years of the programme have returned $6.1 million. In the same year a record 25 small claims were filed. Twenty-five. Meanwhile 46 CFR 541.5 says that leaving one required field off a demurrage invoice “eliminates any obligation of the billed party to pay the applicable charge,” and on 23 September 2025 the D.C. Circuit left that rule standing.
Demurrage is understood as a penalty for being slow. You negotiate free time at contract, you miss it, you pay, and you treat the bill the way you treat a parking ticket: annoying, deserved, not worth fighting. That understanding is what keeps the money where it is. It is also the wrong frame. Since 28 May 2024 an American demurrage or detention invoice has been a regulated instrument with a required content list, and the question on the table is not whether the container sat. It is whether the piece of paper is valid.
The operative sentence is seventeen words long. 46 CFR 541.5: “Failure to include any of the required minimum information in this part in a demurrage or detention invoice eliminates any obligation of the billed party to pay the applicable charge.” Not reduces. Not entitles you to dispute. Eliminates. And the required minimum information in 541.6 is not a formality — it is thirteen identifying, timing and rate elements plus two signed certifications, including the exact start and end dates of free time, the container availability date for imports, the earliest return date for exports, the specific rule or tariff the rate comes from, a digital means of disputing such as “a URL address, QR code, or digital watermark,” and a certification by the billing party that “the billing party’s performance did not cause or contribute to the underlying invoiced charges.”
Then there are the clocks, and all three of them run against the carrier. Under 541.7 a billing party “must issue a demurrage or detention invoice within thirty (30) calendar days from the date on which the charge was last incurred.” Under 541.8 the billed party gets “at least thirty (30) calendar days from the invoice issuance date” to ask for mitigation, refund or waiver, and the billing party “must attempt to resolve the request within thirty (30) calendar days.” A late invoice is a dead invoice. A request ignored is a rule broken.
And the burden does not sit where everybody assumes. 46 U.S.C. 41310, added by the Ocean Shipping Reform Act on 16 June 2022, says a person “may submit to the Federal Maritime Commission, and the Commission shall accept, information concerning complaints about charges assessed by a common carrier,” that the carrier shall “bear the burden of establishing the reasonableness of any demurrage or detention charges,” and that on a finding of violation “the Commission shall promptly order the refund of charges paid.” The complainant proves nothing. The carrier does. Submission is an e-mail to chargecomplaints@fmc.gov and it costs nothing.
So why is the usage so small? Because the people holding the defective invoices are not the people who read the Federal Register. The two complainants who opened FMC Docket 26-07 on 26 May 2026 against ZIM and the Port of Houston Authority are called Down Quark Systems, LLC and SunnySide Digital, Inc. Those are not names with a general counsel attached. They are the shape of the market: small importers who were billed, who noticed, and who had to go and find the rule themselves.
What one of these is worth is also on the record. In Docket 22-30, Chief Administrative Law Judge Erin M. Wirth awarded Samsung Electronics America $3,680,339 against ZIM Integrated Shipping Services on 22 April 2025, over roughly 3,000 containers held between May 2020 and June 2022, finding “numerous ZIM billing errors” and holds that were “not reasonable or justified by the facts.” That is $1,227 a container, won on the paperwork.
The last piece is a price list, published five weeks ago. On 1 September 2026 the Commission issued Charge Complaint Procedures, effective the same day, to “bring awareness that as an alternative to following the Commission’s Interim Procedure for Charge Complaints, Charge Complaints may be filed with the Commission following traditional complaint processes involving either an Administrative Law Judge or Small Claims Officer.” The free channel stays free. The escalation now has a posted number on it: $176 for a small claim up to $50,000, $387 for a formal complaint. A regulator does not publish an alternative route because the existing one is crowded.
The evidence
8 findingsOne missing field and the charge is void
§ 541.5, in full: “Failure to include any of the required minimum information in this part in a demurrage or detention invoice eliminates any obligation of the billed party to pay the applicable charge.” § 541.6 is the list that sentence points at. Identifying: bill of lading numbers, container numbers, port of discharge for imports, and the basis for why the billed party is liable. Timing: invoice date, invoice due date, allowed free time in days, the start date and the end date of free time, the container availability date for imports, the earliest return date for exports, and the specific dates the charges were incurred. Rate: the total due, the specific rate, and “the applicable detention or demurrage rule (e.g., the tariff name and rule number, terminal schedule, applicable service contract number and section, or applicable negotiated arrangement).” Dispute: a contact and “digital means, such as a URL address, QR code, or digital watermark,” plus the timeframe for requesting mitigation. And two certifications — that the charges comply with Commission rules, and that “the billing party’s performance did not cause or contribute to the underlying invoiced charges.” Every one of those is a place for an invoice to fail.
Three 30-day clocks, all of them running against the carrier
§ 541.7: “A billing party must issue a demurrage or detention invoice within thirty (30) calendar days from the date on which the charge was last incurred,” and an NVOCC passing one on gets thirty days from the date it received the invoice, not from the event. § 541.8: the invoice must allow “at least thirty (30) calendar days from the invoice issuance date” to request fee mitigation, refund or waiver, and then “the billing party must attempt to resolve the request within thirty (30) calendar days of receiving such a request or at a later date as agreed upon by both parties.” None of these is a best-efforts provision. A demurrage invoice issued on day thirty-one is outside the rule before anybody argues about whether the container could have moved.
The complainant proves nothing, and submitting costs $0
The statute the Ocean Shipping Reform Act added is short and it is lopsided. “A person may submit to the Federal Maritime Commission, and the Commission shall accept, information concerning complaints about charges assessed by a common carrier.” The Commission must promptly investigate; the carrier is given the chance to respond and must “bear the burden of establishing the reasonableness of any demurrage or detention charges”; and on a finding of violation “the Commission shall promptly order the refund of charges paid,” with civil penalties under section 41107 on top. The Commission’s guidance page sets the bar for entry: “Any person may submit to the Commission a complaint about charges assessed by a common carrier,” including “third parties who paid or were invoiced,” and the submission goes by e-mail to chargecomplaints@fmc.gov with the invoices, bills of lading and proof of payment attached. There is no form, no fee and no filing window.
296 complaints in a country of 335 million people
This is the row that makes the rest of it a business rather than a legal curiosity. “In FY 2025, the FMC received a total of 296 charge complaints, of which 164 met” the criteria for processing (p. 12). Recoveries: “$2.89 million in refunded, waived, or cancelled charges during FY 2025” (p. 12), and “more than $6.1 million in fees have been voluntarily waived or refunded” across the three years since the Act (p. 12). The adjudicated channel is smaller still: FY2025 “began with 5 pending small claims cases and there were a record 25 new” informal proceedings, with “a record 17 informal cases” closed (p. 15). The mediation arm handled “372 informal disputes, an increase from 272” and resolved “over $1,700,000 in disputes” (p. 11). Twenty-five small claims is a national record. That is the number to keep in mind when somebody says the field is crowded.
The escalation now has a posted price: $176
Five weeks ago the Commission published a rule whose entire purpose is to tell people the door is wider than they thought — it issues “this rule to bring awareness that as an alternative to following the Commission’s Interim Procedure for Charge Complaints, Charge Complaints may be filed with the Commission following traditional complaint processes involving either an Administrative Law Judge or Small Claims Officer.” The free interim route stays free. Beyond it, § 502.304(b) sets the small claims fee at $176 for claims of “$50,000 or less” under § 502.301(c), and a formal complaint before an ALJ is $387. The Small Claims Officer’s decision is “final, unless, within thirty (30) days from the date of service of the decision, the Commission exercises its discretionary right to review.” Claims must be brought within three years of accrual under § 502.302(a) — which is the one real deadline in this edition, and it is quietly eating the 2022 and 2023 invoices now.
The carriers challenged it and lost everything but one section
The industry’s own trade body took the rule to the D.C. Circuit. The court set aside exactly one provision — § 541.4, which had limited who may be billed to the shipper or consignee — as arbitrary and capricious for categorically excluding motor carriers that contract directly. Everything that matters to an invoice audit survived. The Commission’s own notice of the decision is the cleanest statement of what is left: “Apart from section 541.4, the rest of the Rule remains in effect and is not impacted by the court’s decision.” The content requirements stand. The thirty-day issuance deadline stands. The sentence voiding a defective invoice stands. A year ago an objection that the rule might not survive was reasonable; since 23 September 2025 it is not.
$3,680,339 at the top of the market, two unknown LLCs at the bottom
The ceiling: Chief Administrative Law Judge Erin M. Wirth issued an initial decision on 22 April 2025 in Docket 22-30 awarding Samsung Electronics America $3,680,339 against ZIM Integrated Shipping Services over charges from May 2020 to June 2022, across roughly 3,000 containers, against an original claim of more than $12 million. The reported basis is section 41102(c) and “numerous ZIM billing errors” showing the cargo holds were “not reasonable or justified by the facts.” The floor, and the more useful end: on 26 May 2026 the Commission docketed 26-07, a complaint by Down Quark Systems, LLC and SunnySide Digital, Inc. against Zim American Integrated Shipping Services, ZIM, and the Port of Houston Authority of Harris County, Texas, pleading 46 U.S.C. 41102(c) and 41104(a) alongside 46 CFR 541.1 through 541.8 — the invoice rules, cited by name, by two companies nobody has heard of. The award figure here is a trade-press account; the Commission’s own order PDF would not retrieve, which is why this row is chipped reported and the others are not.
13.6 cases a year, and the plotted points behind the figure
The chart first. Horizontal scale 1 case = 20 px, vertical 1 px = $625, origin at (80, 360). The FY2025 average qualifying recovery is $2,890,000 ÷ 164 = $17,621.95. A quarter of that is $4,405.49 a case, so thirty cases are 30 × 4,405.49 = $132,164.63, plotting at 360 − 211.46 = y 148.5. Thirty-five per cent is $6,167.68, so thirty cases are $185,030.49, plotting at 360 − 296.05 = y 64.0. The $60,000 target is a flat line at 360 − 96 = y 264. The 25% line reaches it at 60,000 ÷ 4,405.49 = 13.62 cases, x = 80 + 272.4 = 352.4; the 35% line at 60,000 ÷ 6,167.68 = 9.73 cases, x = 274.6. As shares of the 164 qualifying complaints the entire country filed in FY2025 those are 8.3% and 5.9%. Now the rest of the money. Samsung’s award divides to $3,680,339 ÷ 3,000 = $1,226.78 a container, so a single importer with a hundred mishandled boxes is a $122,678 claim and a $30,670 fee at a quarter. The three-year programme total of $6.1 million against FY2025’s $2.89 million means 47.4% of everything ever recovered through this channel was recovered in the last year alone — the usage is rising from a base of almost nothing. The $500: the charge complaint costs nothing to submit, a small claim costs $176 under 46 CFR 502.304(b), and admission to practise before the Commission as a non-attorney costs $104 under 46 CFR 503.43(e) — which is not even required where the client files on its own behalf, since § 502.21 lets a party appear “in person or by an officer, partner, or regular employee.” That is $280 of the capital committed, and one average case returns 8.8× the whole $500 at a quarter of recovery. Five things are not hardened. The $17,622 average divides one financial year’s recoveries by that year’s qualifying complaints, and those are not the same cohort — a complaint filed in September is paid in the next year — so it is an order of magnitude, not a per-case expectation. The 25% and 35% contingency rates are assumptions, not a published rate card; nobody in this trade posts one, which is why the figure is drawn at both. The Samsung award is a trade-press figure and was an initial decision. § 541.4 is vacated, so who may lawfully be invoiced is unsettled even though the invoice contents are not. And the free channel produces voluntary refunds and waivers rather than judgments, so a recovery is a negotiated outcome that the carrier can decline, leaving the $176 route as the only enforceable one.
The ladder
From $500 to $5,000 a monthSeven rungs. Nothing here is argued on the merits of whether the container should have moved; it is argued on whether the invoice is a valid instrument.
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Audit the paper, not the delay
Lay a client’s demurrage and detention invoices against the § 541.6 list, field by field. Free-time start date, free-time end date, container availability date, earliest return date, the named tariff rule the rate comes from, the digital dispute means, the two certifications. One absence and § 541.5 eliminates the obligation to pay. You are not arguing; you are ticking boxes.
13 elements + 2 certifications · any one omitted -
Date the invoice before you read it
§ 541.7 gives the billing party thirty calendar days from the last day the charge was incurred to issue the invoice. That check takes ten seconds and it disposes of the whole document. For an NVOCC passing a charge down, the thirty days run from the date it received the invoice, not from the event — a different clock that is easy for them to miss.
30 days from last incurred · one date, whole invoice -
Start the request, then start the clock on them
§ 541.8 requires at least thirty days for the billed party to request mitigation, refund or waiver, and then puts the billing party under its own thirty-day duty to attempt resolution. Send the request in writing on the day you find the defect. Whatever happens next, the carrier is now either paying or on the record failing a rule.
30 to ask · 30 to answer · both documented -
Use the free channel first, because the burden is not yours
46 U.S.C. 41310 makes the Commission accept the complaint, puts the burden of establishing reasonableness on the carrier, and makes refund mandatory on a finding. Submission is an e-mail with the invoice, the bill of lading and proof of payment attached. It costs nothing, so it is never the wrong first move.
chargecomplaints@fmc.gov · $0 · carrier carries the burden -
Price the escalation and say the number out loud
The 1 September 2026 rule put the alternative routes in writing: $176 for a small claim up to $50,000 before a Small Claims Officer, $387 for a formal complaint before an ALJ. A carrier that has read the same rule knows a $176 filing is not a bluff. Three-year limitation under § 502.302(a), so the oldest recoverable invoices are expiring every week.
$176 ≤ $50,000 · $387 formal · 3-year limit -
Sell to the companies with no general counsel
The two complainants in Docket 26-07 are Down Quark Systems, LLC and SunnySide Digital, Inc. That is the customer. Importers large enough to have lawyers already dispute; importers small enough to swallow a $4,000 invoice are the unserved side, and they are reachable because every FMC complaint docket publishes the names of companies that were billed by the same carriers.
26-07 · two LLCs · public docket as a lead list -
Stop at fourteen
FY2025’s average qualifying recovery was $17,622. At a quarter of recovery that is $4,405 a case, so 13.6 cases a year is $60,000 — $5,000 a month. Measured against the 164 qualifying complaints the whole country filed, that is 8.3% of the national pool. The $500 covers one small-claims fee, the $104 non-attorney admission, and the registration.
13.6 × $4,405 = $60,000 · 8.3% of 164
Sources
11 primary documents- 46 CFR part 541, subpart A (§§ 541.5–541.8), Demurrage and Detention billing requirements — in force 28 May 2024
- 46 U.S.C. 41310, Charge complaints — enacted 16 June 2022 (OSRA 2022)
- FMC, Guidance on Charge Complaint Interim Procedure — current
- Federal Maritime Commission, FY 2025 Performance and Accountability Report — published December 2025
- FMC, Charge Complaint Procedures, 91 FR 56053 — effective 1 September 2026
- 46 CFR part 502, subpart S, Informal Procedure for Adjudication of Small Claims — current
- World Shipping Council v. Federal Maritime Commission, No. 24-1088 (D.C. Cir.) — decided 23 September 2025
- FMC, U.S. Court of Appeals Issues Decision in Case on Demurrage and Detention Billing Practices — 23 September 2025
- gCaptain on FMC Docket 22-30, Samsung Electronics America v. ZIM, initial decision of Chief ALJ Erin M. Wirth — 22 April 2025 (reported)
- FMC, Notice of Filing of Complaint and Assignment, Docket 26-07 (Down Quark Systems, LLC and SunnySide Digital, Inc. v. ZIM et al.) — 26 May 2026
- 46 CFR 503.43, Fees (non-attorney admission to practice, $104)
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