How to Request a Last Free Day Extension: Step-by-Step Guide

When and Why to Request an LFD Extension

An extend last free day request buys your cargo more time at the terminal before demurrage charges begin. At major US ports, demurrage starts at $150–$500 per container per day depending on the carrier and port — and it compounds daily. A three-day extension approved before LFD expires can eliminate hundreds or thousands of dollars in fees that would otherwise be unavoidable.

Extensions are not guarantees. Carriers evaluate each request on its merits, and approval rates vary significantly by carrier, reason code, and quality of supporting documentation. Blanket requests citing “trucking delays” with no backup rarely succeed. Requests tied to documented government holds, terminal equipment failures, or carrier-caused vessel delays are substantially more likely to be approved — particularly under the framework OSRA 2022 established.

The two most common scenarios that warrant a request: a CBP or FDA exam that delays customs release, and a drayage capacity crunch during peak port congestion when every carrier on your list is unavailable. For background on how LFD is calculated and what triggers it, see our overview of what last free day means.

Extension Request Channels by Carrier

Each major SSL has its own submission channel. Using the wrong channel — emailing a carrier that processes extensions through a portal, or calling a carrier that only accepts written requests — adds delay. The table below reflects current procedures as of Q1 2026.

Response times are averages based on industry reporting. Actual turnaround varies by office workload, documentation completeness, and proximity to LFD. Always request as early as possible — submitting 48+ hours before LFD gives the carrier time to respond before charges begin.

Step-by-Step Extension Process (General)

Regardless of carrier, the core process follows the same sequence. Deviating from it — especially by requesting after LFD or submitting incomplete documentation — significantly reduces approval odds.

Step 1: Confirm the Current LFD

Before submitting anything, pull the current LFD from the carrier’s portal or your tracking system. LFDs can shift after vessel discharge date corrections, terminal gate delays, or rolled cargo arriving on a later vessel. Submitting a request with the wrong LFD date creates confusion and can invalidate your request. For a full walkthrough of how to pull LFD data from the Maersk portal specifically, see how to check last free day on Maersk.

Step 2: Identify and Document the Delay Cause

Gather documentation before you draft the request. Carriers want to see proof, not assertions. A CBP exam notice from ACE, a FDA DWPE (Detention Without Physical Examination) notice, a terminal advisory citing equipment failure, or a written attestation from your drayage provider citing capacity constraints — any of these materially improve your approval rate compared to a bare email saying pickup is delayed.

Step 3: Submit Before LFD — With Specifics

Submit your request at least 48 hours before LFD when possible. Include: the container number(s), B/L number, current LFD date, the number of additional days requested, the reason code, and attached documentation. Carriers that process extensions through email need the container number in the subject line — do not bury it in the body text. State the requested new LFD explicitly (e.g., “requesting extension to March 22, 2026”) rather than asking for “a few more days.”

Step 4: Follow Up and Confirm the Updated LFD

If you have not received a response within 24 hours before LFD, call the carrier’s local office directly — do not wait for email. Once you receive approval, verify the updated LFD in the tracking portal before dispatching drayage. Approved extensions that fail to update in carrier systems are more common than they should be; if the portal still shows the old LFD six hours after approval, contact the carrier to reconcile.

Carrier-Specific Extension Procedures

Maersk

Log into maersk.com, navigate to Track & Trace, open Container Details, and locate the Demurrage & Detention section. The “Request free time extension” link appears below the LFD date while the LFD is still active. The form collects reason code, supporting documents, number of requested additional days, and a contact email. Maersk confirms receipt immediately via email and delivers a decision within 1–2 business days. If approved, the portal LFD updates within 4–6 hours — screenshot the updated date as a record.

MSC

MSC does not offer a self-serve extension portal. Email the local MSC agency handling your port — for LA/Long Beach shipments, that’s MSC’s Los Angeles office; for East Coast, contact the relevant regional office. Include container number, B/L, current LFD, reason, and documentation. MSC’s response time averages 3–5 business days, which means you need to submit at least a week before LFD if the port allows. MSC is more stringent than Maersk on accepting congestion-based requests; government exam documentation has a significantly higher approval rate.

CMA CGM

CMA CGM processes extensions through their online portal at cma-cgm.com. Navigate to your shipment, open the Demurrage & Detention tab, and submit the extension form. CMA CGM’s portal requires your CMA CGM customer account. Response times average 1–3 business days. CMA CGM has been more receptive than average to port congestion requests when paired with a terminal advisory — the Port of Los Angeles and Port of Long Beach both issue congestion advisories during peak periods that CMA CGM accepts as supporting documentation.

Hapag-Lloyd

Hapag-Lloyd extensions go through the local office by email. For US West Coast shipments, contact Hapag-Lloyd’s Long Beach or Los Angeles office. Include the booking number and B/L in the subject line. Hapag-Lloyd’s D&D team is generally responsive but will not approve requests without documentation — a customs broker letter confirming exam status or a terminal gate log are both accepted.

Documentation You Need

The documentation you submit determines whether an extension request succeeds or fails. The following are accepted across most major carriers, ranked by strength of approval signal:

• CBP Intensive Exam Notice — the ACE system notification that CBP has initiated a physical or document examination. This is the single strongest piece of documentation across all carriers.
• FDA DWPE or Import Alert Notice — for food, drug, or cosmetic imports flagged by FDA. Carriers treat this equivalently to CBP exam notices.
• Terminal Advisory / Port Authority Notice — official documentation of equipment failure, labor action, or force majeure at the terminal. Available from the terminal operator website or port authority.
• USDA/APHIS Hold Documentation — for agricultural cargo under phytosanitary hold. Accepted universally.
• Drayage Provider Capacity Attestation — a written statement from your trucking company confirming unavailability during the requested period. Weaker than government holds but still improves outcomes for port-congestion requests.
• Customs Broker Letter — confirming outstanding entry, bond issue, or government hold. Useful when the formal CBP notice is delayed in the ACE system.

OSRA 2022 Protections: Charges You Can Dispute Without an Extension

Under the FMC’s 2020 interpretive rule (46 CFR § 545.5), demurrage charged for periods during which a container was not accessible to the importer or their drayage provider through no fault of the cargo interest can be found unreasonable, and OSRA 2022’s billing rule at 46 CFR Part 541 requires every invoice to certify that its charges comply with that rule. This is not a discretionary extension that requires carrier approval — it is a regulatory ground to dispute the bill.

The protected periods include: CBP, FDA, USDA, or other government-directed holds; terminal-caused inaccessibility (equipment failure, gate closures, labor actions affecting access); and carrier-caused delays (vessel late arrival, container rolled to a later vessel). Under 46 CFR Part 541, carriers are also required to list the specific dates charged on every demurrage invoice, along with the free time start and end dates.

In practice: if your container sits under a 5-day CBP exam, those 5 days should not appear on your demurrage invoice. If they do, you have grounds for dispute — not just a request for discretionary waiver. Document the exact dates of the hold, cross-reference them against the demurrage invoice line items, and submit a formal dispute with the carrier. The FMC’s Bureau of Enforcement, Investigations, and Compliance handles formal complaints against carriers who refuse to credit properly documented protected periods.

For a broader overview of how to track LFD across multiple carriers and ports before extensions become necessary, see our complete LFD tracking guide.

Extension Success Tips

• Request early, not urgently. A request submitted 5 days before LFD with full documentation gets more careful review than one submitted at 4:00 PM on the LFD date. Carriers deprioritize last-minute requests and may not process them in time.
• Match your requested days to your documentation. If your CBP exam notice says the exam will be completed by March 20 and your LFD is March 18, request a 3-day extension to March 21 — not a blanket 7-day extension. Proportional requests are approved at higher rates.
• Track extension status proactively. Do not assume approval until it is confirmed in the portal. Follow up by phone if you have not received a response 48 hours before LFD.
• Keep all correspondence. If a carrier approves an extension verbally or by email but the demurrage invoice does not reflect it, you need the email chain and the approval reference number to dispute the charge.
• Build carrier relationships before you need them. Operations teams that communicate regularly with their carrier account reps — not just when cargo is at risk — report higher approval rates and faster turnaround on extension requests.

Common Mistakes to Avoid

• Submitting after LFD has expired. Retroactive extensions are almost never approved, and carriers are not obligated to grant them. Once demurrage accrues, your only recourse is a dispute — not an extension.
• Using the wrong submission channel. Emailing Maersk instead of using their portal, or assuming CMA CGM works the same as MSC, adds delays that can cost you the window for pre-LFD approval.
• Requesting vague timeframes. “A few extra days” gives the carrier nothing to evaluate. Always state a specific new LFD date.
• Submitting without documentation for government holds. Citing a CBP exam without attaching the ACE notice is treated as an undocumented request. Carriers know the difference.
• Failing to verify the updated LFD after approval. Approved extensions that are not reflected in the portal can still generate incorrect demurrage invoices. Confirm the system update before closing the file.