The NMFC freight class 2025 changes arrived through NMFTA’s Docket 2025-1, which was issued January 30, 2025, discussed at a public Freight Classification Development Council meeting on March 4, 2025, and took effect Saturday, July 19, 2025. The core of it: a large set of commodity items moved onto one standard density scale, for items where handling, stowability and liability are not concerns.
That is the whole change in a sentence, and it matters more to your invoices than to your freight. If a commodity you ship used to carry a single fixed class no matter what it weighed, and now takes its class from how dense the pallet actually is, then your item master, your BOL template, and your quoting habits are all describing a world that ended in July 2025. The carrier’s dimensioner has not.
Three questions matter now: what actually changed, what did not, and how to check whether a reclassification charge on a current invoice is correct. Nothing here reproduces the density scale itself, for reasons explained below.
What Docket 2025-1 actually did
NMFTA describes the change as moving items to one standard density scale where handling, stowability and liability are not concerns. Read that qualifier carefully, because it is the whole design:
- If a commodity presents no unusual handling problem, stows normally alongside other freight, and carries no elevated damage or theft exposure, then density is the only characteristic doing real work. Those items were consolidated onto a common density-based structure.
- If a commodity does present one of those concerns (it is fragile, awkward, hazardous, high-value, or it wastes trailer space), the item keeps characteristics beyond density and is not a pure density call.
Before the restructure, the NMFC accumulated decades of one-off item treatments: fixed classes for particular commodities, bespoke sub-provisions, and density tables that differed item to item. The restructure is largely a cleanup of that sprawl, not a new theory of classification.
The practical consequence is that for a growing share of what you ship, the class on the invoice is a function of a measurement rather than a lookup. Measurements get taken by the carrier, at the terminal, on equipment you did not calibrate. That is a billing exposure, and it is why reclassification charges are worth auditing now even if they were never a line item you paid attention to before.
What did not change
Four things people assume changed, and did not.
Class is still determined by four characteristics. NMFTA is explicit that density, handling, stowability and liability are what determine NMFC class. The restructure changed how those characteristics are applied to many items. It did not reduce classification to density alone, and any carrier rep or vendor telling you “it is all density now” is describing a subset.
The NMFC is still the governing document. Class is not set by regulation. There is no federal rule that says your pallet of plastic totes is class 92.5. Class comes from the National Motor Freight Classification, published by NMFTA, and it binds you because your carrier’s tariff or your transportation agreement incorporates it. That distinction matters when you dispute: you are arguing a contract and a published classification document, not a statute.
Your rates did not automatically change. Class is an input to pricing, not the price. If your pricing is class-based, a class change moves your cost. If you negotiated an FAK (freight all kinds) arrangement or class-exempt pricing, the restructure may barely touch your invoices. Read your pricing agreement before you assume either way.
Your obligation to describe the freight accurately did not change. Under 49 CFR 373.101, a motor carrier’s receipt or bill of lading must show the consignor and consignee, origin and destination, package count, a description of the freight, and weight, volume or measurement where those matter to rating. That last clause is the one classification lives under. If dimensions are what determine your class, dimensions are rating-relevant and they belong on the document.
The density table we are not going to publish
You will find pages circulating that lay out the post-2025 density-to-class scale with specific breakpoints in pounds per cubic foot. We are not republishing one, and here is why.
The NMFC and its ClassIT lookup tool are NMFTA’s copyrighted, subscription-licensed products. The scale is not free public data the way the CFR is. Beyond the licensing question, we could not verify the widely circulated breakpoint tables against a primary NMFTA source during research: the relevant NMFTA help pages returned errors and the docket PDF was not retrievable. Publishing an unverified band table would be worse than publishing nothing, because a reader would use it to argue a dispute and then discover the number was wrong in front of their carrier.
Where to get the real scale:
| Source | What you get | Cost |
|---|---|---|
| NMFTA ClassIT subscription | The authoritative item list and the current density scale | Paid subscription |
| Your LTL carrier’s pricing or classification desk | The item and sub-provision they will actually bill, in writing | Free, and it is the number that matters |
| Your 3PL or broker’s classification team | A determination plus the reasoning | Usually included in service |
| A printed or licensed NMFC copy your company already holds | Same as ClassIT, if the edition is current | Already paid for |
The second row is underrated. The class that shows up on your invoice is the class the carrier’s system assigns. Getting that determination in writing before you ship is worth more than any table, because it converts a future argument into a prior agreement.
Why reclass charges got more common after the restructure
A reclassification charge is an accessorial. It appears in the standard practitioner list of accessorial charges alongside reweigh, redelivery and liftgate. Mechanically, it means the carrier inspected the shipment, decided the class on the BOL was wrong, rerated the shipment at the class it determined, and often added a fee for doing the inspection.
Three things make that more likely now:
- Stale item masters. Your ERP or TMS carries a class per SKU, typed in years ago. If that item moved onto the density scale in July 2025, the stored class is a guess about a specific pallet build, not a property of the product.
- Density varies by how you build the pallet. Same product, two different stack heights, two different densities, potentially two different classes. A fixed class in a master file cannot express that.
- Automated dimensioners. Carriers scan freight at the dock. The reading is fast, cheap, and applied to far more shipments than a manual inspection ever was.
None of that is bad faith. A carrier that rates a light, bulky pallet as if it were dense is losing money on trailer space it cannot sell twice. The problem is that a dimensioner reading is treated by both sides as unchallengeable, and it is not. It is evidence, and evidence can be produced, examined, and contradicted.
Auditing a reclass charge, step by step
Work in this order. Most of the wins are in steps two and three.
1. Find what class you tendered and what class was billed. The BOL shows what you declared. The invoice shows what the carrier rated. If they match, the reclass fee is the only thing in dispute, not the freight charges.
2. Check whether the invoice actually shows its work. Under 49 CFR 373.103, a freight or expense bill must show the freight description, the weight or volume, the exact rates assessed, and the total charges due with the nature and amount of each charge. A rerated invoice that shows a new class and a new total but no dimensions, no weight, and no inspection reference does not let you verify anything. Ask for the itemization. This is a request with a rule behind it, and it is the cheapest first move in the dispute.
3. Ask for the carrier’s evidence, specifically. Not “please explain the reclass.” Ask for: the inspection or dimensioner report, the date, terminal and equipment used, the recorded length, width and height, the recorded weight and the scale used, the NMFC item number and sub-provision applied, and the photographs if the system captured them. Carriers that run automated dimensioning generally have all of this, and a request that names the artifacts gets a faster answer than a general complaint.
4. Recompute the density yourself from your own shipping record. Your warehouse knows the pallet pattern, the case count, the case weight and the stack height. Run the math on your own numbers and compare, using the method in how to calculate freight density in pounds per cubic foot with the pallet included. If your figure and the carrier’s figure differ materially, you have a factual dispute about a measurement, which is the most winnable kind.
5. Check whether the item is even a density item. If the commodity carries handling, stowability or liability characteristics, density alone should not have driven the reclass. Ask which NMFC item and sub-provision the carrier applied and read it.
6. Check the fee separately from the freight charges. Even where the class correction is right, the reclassification fee itself is a contractual charge. Look at your rate confirmation or pricing agreement: is the fee named, is the amount stated, is it capped, does it apply when the shipper’s declared class was reasonable? A class correction you accept does not automatically mean you accepted a fee schedule you never saw. The habit of reconciling the invoice against the agreement is the same one covered in what to do when the rate confirmation and the carrier invoice disagree.
What a reasonable dispute looks like
| Situation | Your position | Likely outcome |
|---|---|---|
| Carrier’s dimensions match yours, class is right | Correction stands | Pay the rerate, contest only an unsupported fee |
| Carrier will not produce the inspection record | Charge is unsupported | Ask for itemization under 49 CFR 373.103, then for removal |
| Your measured density differs materially from theirs | Factual dispute | Send your pallet spec and photos, request re-review |
| Item has handling or liability characteristics beyond density | Wrong analysis, not just wrong number | Ask which item and sub-provision was applied |
| Fee is not in your agreement or rules tariff | Contractual dispute | Ask for the tariff item number and effective version |
| Reclass appears months later on a rebill | Timing problem on top of everything else | Check the 180-day window before arguing the merits |
That last row deserves its own paragraph. Under 49 U.S.C. 13710, a carrier billing charges additional to those it originally billed must do so 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. A reclass that surfaces on a rebill long after a clean original invoice has a deadline question in front of the classification question. If you already paid, the money moves under a different clock: 49 CFR 378.8 requires the processing carrier to pay, decline, or settle a written overcharge claim within 60 days of receipt, absent a written agreement to extend. All of these windows are laid out together in the freight billing deadlines reference.
What to do this quarter
A short list, in the order that pays best.
- Pull every reclassification and reweigh line from the last six months and total it. If the number is small, stop here and fix the item master. If it is not, keep going.
- Sort those lines by SKU or commodity, not by carrier. A pattern on one product is a data problem you can fix once.
- For your top five commodities by volume, get a written classification determination from the carrier that hauls them, including the NMFC item number and sub-provision.
- Replace any fixed class in your item master with a density calculation driven by the actual pallet build, for the items that moved onto the density scale.
- Put actual dimensions and gross weight on every BOL, not nominal pallet dimensions. If class rides on measurement, the measurement is a rating field.
- Check whether your pricing agreement names a reclassification fee, states the amount, and requires the carrier to provide the inspection record on request. If it does not, that is a renewal item.
- Contest anything unsupported inside the 180-day window, and release the undisputed balance so the carrier has no past-due leverage while you argue.
Step five is the one that compounds. A carrier’s dimensioner reading is hard to argue with when your own BOL says “1 pallet, 48x40, 1,200 lbs” and the pallet was actually 52 inches wide with a 68-inch stack. It is easy to argue with when your document recorded the real numbers at the moment of tender, before anyone had a billing reason to describe the freight one way or another. That is the same evidentiary logic that decides an accessorial dispute like a liftgate on a dock delivery: record the condition while it is true, and the dispute writes itself later.
Sources
- A Guide to the NMFC Changes Coming in 2025 (NMFTA), Docket 2025-1 dates and the move to one standard density scale
- NMFC Changes 2025: How Carriers Can Prepare (NMFTA), the four characteristics that determine class
- What Shippers and 3PLs Need to Know About the 2025 NMFC Classification Changes (Banyan Technology), secondary coverage of the restructure
- 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, additional billing and contesting windows (Cornell LII)
- 49 CFR 378.8, overcharge claim resolution within 60 days (Cornell LII)
- Top 20 accessorial charges, practitioner taxonomy (Zipline Logistics)