LTL Reweigh Fee Dispute: What the Carrier Must Show

An LTL reweigh fee dispute comes down to one document you almost never receive without asking: the weight certificate. Ask for the scale ticket with the date, time, terminal and scale identity, the gross and tare readings if the unit was weighed on a platform, and the corrected weight the rerate was built from. Then compare that weight against your own shipping record. If the carrier cannot produce a ticket tied to your PRO number, it has a rerate with no measurement behind it.

That is the practical answer. Here is the part that gets stated wrong constantly, including by people trying to help you: there is no federal motor carrier regulation that requires a carrier to use a certified scale before reweighing your LTL shipment, or to notify you before it does. Those obligations, where they exist, come from the carrier’s rules tariff and your transportation agreement. State weights-and-measures law governs commercial scales generally, but that is a different body of law from freight billing, and it is not what you cite in a dispute email.

Knowing that distinction is what makes your dispute land. You are not enforcing a regulation. You are enforcing a contract and testing a measurement.

What a reweigh charge is, and what it is not

A reweigh happens when the carrier puts your shipment on a scale, gets a number different from the weight on your bill of lading, and rerates the shipment at the heavier figure. Two charges can result: the weight correction itself (the rate difference between the declared and actual weight) and, separately, a reweigh or inspection fee that pays for the act of weighing.

Reweigh appears next to reclassification in the standard practitioner taxonomy of accessorial charges, and the two arrive on invoices together often enough that shippers treat them as one thing. They are not.

They can also interact. A reweigh that changes the weight changes the density, which can change the class, which produces a reclass on the same invoice from a single measurement pass. When both lines appear, get the underlying numbers once and check whether the class change is simply a mechanical consequence of the weight change. If it is, winning the weight argument collapses both lines, which is a much better outcome than fighting two separate disputes. The class side of that is worked through in disputing a reclassification charge and the carrier’s dimensioner reading.

What federal rules actually give you

Be precise here, because carriers respond to precision and dismiss overreach.

Your bill of lading has to carry a weight. Under 49 CFR 373.101, a motor carrier’s receipt or bill of lading must show the consignor and consignee names, origin and destination, number of packages, description of the freight, and weight, volume or measurement where relevant to rating. LTL rating is weight-based, so weight is relevant, and the number you put there is the number the carrier’s correction is measured against. A BOL that says “approx. 1,800 lbs” is an invitation.

The invoice has to describe the charge. Under 49 CFR 373.103, a freight or expense bill must show the shipment date, origin and destination, package count, freight description, weight or volume, the exact rates assessed, and the total charges due with the nature and amount of each charge. A reweigh line that shows a dollar figure but not the corrected weight or the rate applied to it does not satisfy that. Requesting the weight and the rate basis is a request grounded in the rule, and it is the right opening move because it forces the carrier to state a number it has to stand behind.

Late-arriving charges are on a clock. Under 49 U.S.C. 13710, a carrier must bill charges additional to those originally billed within 180 days of your receipt of the original bill to preserve its collection rights, and you must contest a bill within 180 days of receipt to preserve your right to challenge it. Weight corrections are a classic late-rebill category because terminal audit runs behind billing.

If you already paid, it is an overcharge claim. Under 49 CFR 378.4, an overcharge claim must be accompanied by the freight bill, the rate, classification, weight or tariff authority relied on, and the payment information, and inadequate documentation alone cannot disqualify the claim. Weight is explicitly named. Under 49 CFR 378.8, the carrier must pay, decline, or settle a written claim within 60 days of receipt absent a written agreement to extend, and per 49 CFR 378.5, only a written claim starts that clock.

What none of those rules do is set a standard for the scale, require a weight certificate, or oblige the carrier to tell you before it reweighs. That is the gap, and the tariff fills it.

What the tariff gives you, and why you have to read yours

Most LTL carriers publish weight and inspection provisions in their rules tariff. The provisions vary by carrier, so nothing here is a general rule, but the categories to look for are consistent:

• What triggers a reweigh. Some tariffs describe a variance threshold, a percentage or a pound figure, below which the carrier will not correct.
• What the carrier will provide. Some tariffs commit to furnishing a weight certificate or inspection record on request. This is the single most useful provision you can find, because it converts your document request from a favor into a contractual obligation.
• The reweigh or inspection fee itself. Whether it applies when the reweigh confirms your declared weight, or only when a correction results. A fee charged on a reweigh that found nothing wrong is worth questioning on its own terms.
• Whether the fee applies per shipment or per handling unit. On a multi-pallet shipment this is the difference between one fee and six.
• Notification. Whether the carrier undertakes to notify the shipper of a correction, and in what window.

Your transportation agreement sits above the tariff and may modify all of it. If your contract incorporates a rules tariff by reference, which most do, you are bound by a document you probably have never opened, and so is the carrier. Pull the item number and the effective version. Quoting a carrier its own tariff item ends more disputes than any regulation will.

If your tariff genuinely gives the carrier unilateral correction authority with no documentation duty, you have learned something real. The fix is at renewal, not on this invoice, and it belongs on the same list as the accessorial caps and free-time terms you negotiate.

The five things to demand

Send the request before you send the argument. A carrier that has to go find a scale ticket sometimes discovers there isn’t one.

1. The scale ticket or weight certificate, with the date, time, terminal, and the scale or dimensioner identity. This ties the measurement to a place and a moment.
2. The corrected weight and how it was derived. Gross and tare if the unit was weighed with equipment, or the individual handling-unit weights if the shipment was weighed piece by piece.
3. The PRO number on the weighing record. Not the invoice number. The record has to identify your freight, not a shipment that passed through the same terminal on the same day.
4. The rate applied to the corrected weight, so you can reproduce the dollar difference rather than accept it.
5. The tariff item and effective version authorizing both the correction and the fee.

Give a response date. Ten business days is reasonable and it is short enough to keep the file moving.

Reproduce the arithmetic

Weight corrections are usually right, and the fastest way to know is to redo the math. LTL rates are quoted per hundredweight, so the recomputation is short.

An illustration, not a rate quote. Say you tendered 1,800 pounds and the carrier reweighed at 2,240. At an illustrative $32.00 per hundredweight:

• Declared: 18 cwt at $32.00 = $576.00
• Reweighed: 22.4 cwt at $32.00 = $716.80
• Difference: $140.80

If the invoice shows a weight correction of $140.80, the arithmetic is clean and the dispute, if any, is about the weight itself. If it shows $210, something else is in that number: a different rate, a class change riding along, a weight break the shipment crossed, or a fee bundled into the correction line. That is the moment to ask for the itemization.

Watch weight breaks specifically. LTL tariffs price in weight bands, and a correction that pushes a shipment across a band boundary can change the rate per hundredweight in your favor, since higher bands usually carry lower rates. Applying the old rate to the new weight, when the new weight qualifies for a better band, overstates the correction. Carriers apply deficit weight rating to prevent you from paying more than the next band’s minimum, and the same logic should apply to a correction. If the corrected weight lands just above a break, check which rate was used.

When the carrier’s number is probably right

Fairness matters here, and so does not burning your credibility on a fight you will lose. Reweighs exist because declared weights are frequently wrong, and the reasons are mundane, not dishonest:

• The BOL weight is the product weight. Pallet, stretch wrap, corner boards, slip sheets and dunnage go on the scale too. A wood pallet alone adds meaningful weight to every handling unit, and shippers routinely omit it.
• The weight came from a spec sheet. Nominal case weights compound. Four hundred cases at a nominal weight each carries whatever error is in that nominal figure, multiplied.
• Someone rounded. Down, usually.
• The order shipped short or long. The pick changed after the BOL printed.

If your own scale ticket and the carrier’s agree within rounding, pay the correction and move to prevention. What you can still question in that case is the reweigh fee itself, if your tariff conditions it on a correction and the variance was within a stated tolerance.

When to escalate and when to let it go

A reweigh line and a fee on a single shipment is often smaller than the labor to fight it. The judgment call:

Dispute it when the carrier cannot tie a weighing record to your PRO, when your own certified scale ticket contradicts theirs, when the arithmetic does not reproduce, when the charge arrived on a rebill outside the 180-day window, or when the fee was charged on a reweigh that confirmed your declared weight.

Pay it and fix upstream when your BOL weight was an estimate, when the variance is within your own measurement error, or when your scale ticket does not exist. You will lose, and losing loudly makes the next dispute harder.

Escalate to a pattern claim when the same lane, terminal or SKU produces reweighs repeatedly. One correction is a shipment. Twenty corrections on the same item is a systematic issue with either your weight data or the carrier’s, and it is worth pulling six months of invoices to see which. Recurring, identical-looking charges are exactly the sort of thing that hides in a high-volume AP file, in the same way true duplicate invoices hide behind legitimate rebills.

The audit checklist

Run this on every reweigh line before it gets approved.

1. Is the corrected weight stated on the invoice, or just a dollar amount? If just a dollar amount, request itemization under 49 CFR 373.103.
2. Recompute the correction at the invoiced rate per hundredweight. Does the difference reproduce?
3. Did the corrected weight cross a weight break? If so, confirm which rate band was applied.
4. Request the scale ticket with date, time, terminal and PRO. No ticket, no charge.
5. Compare against your own record: certified scale ticket, dock scale reading, or a documented computed weight including pallet and packaging.
6. Check whether a reclass line rode along, and whether it is a consequence of the weight change rather than an independent finding.
7. Check the date the charge was billed against 49 U.S.C. 13710. A weight correction arriving eight months later has a timing problem.
8. Pull the tariff item for the reweigh fee and confirm it applies on these facts, including per shipment versus per unit.
9. Release the undisputed balance, hold only the contested lines.
10. If already paid, convert it to a written overcharge claim so the 60-day clock under 49 CFR 378.8 starts.

The prevention half is shorter and worth more. Weigh your shipments on a scale you control, record the weight including pallet and packaging, and put the real number on the BOL. A shipper whose declared weights hold up under scrutiny stops receiving reweigh charges, because terminal audit is targeted, not random.

Two habits make the whole file easier. Keep your own scale tickets for at least a year, since you cannot contest a weight you cannot independently document, which is the same evidentiary logic behind the documents that carry a detention dispute. And check the reweigh against your rate confirmation or pricing agreement before you check it against anything else, because the fastest reweigh disputes are the ones where the fee is not in the agreement at all, the pattern covered in rate confirmation versus carrier invoice mismatches. Every clock that applies to a late-arriving correction is collected in the freight billing deadlines reference.

Sources

• 49 CFR 373.101, Motor carrier receipts and bills of lading (Cornell LII)
• 49 CFR 373.103, Freight or expense bills (Cornell LII)
• 49 U.S.C. 13710, Billing and contesting windows (Cornell LII)
• 49 CFR 378.4, Documentation required with an overcharge claim (Cornell LII)
• 49 CFR 378.5, Investigation of claims (Cornell LII)
• 49 CFR 378.8, Overcharge claim resolution within 60 days (Cornell LII)
• Top 20 accessorial charges, practitioner taxonomy (Zipline Logistics)