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LTL Freight Class Code Updates
Learn how updates to freight class codes affect less-than-truckload (LTL) shipments in this interview with Keith Peterson of the NMFTA.
On July 19, 2025, the National Motor Freight Traffic Association (NMFTA) implemented major changes to freight classifications for less-than-truckload (LTL) shipments. We talked with Keith Peterson, director of operations at NMFTA, to find out how these changes affected the way some LTL shipments are priced.
What is the difference between full density and modified density?
Keith: Going forward, [the] modified density scale may be used on freight that has known handling, stowability or liability issues. Modified density means that the item will have two or more classes that may be assigned to the item based on characteristics of the item.
Full density is the class scale we are going to use going forward for freight that has no known handling, stowability and liability issues. It will allow that freight to be classified by density, meaning how much room it takes up in the trailer.
What are some examples of the types of freight affected by this change?
Keith: Think of standard freight that fits on a pallet and is easy to handle and stow in the trailer. By adding classes 50 and 55 to the full density scale, we are now able to make heavy and dense freight full density. It is about simplifying and standardizing classification across the board.
What is the goal of these changes?
Keith: [The goal] is to simplify the process. Before you would have to find the right item, then see what classes are available for that item after getting the density. By making density the primary characteristic it will be much more uniform and easier to apply.
Do you anticipate these changes to NMFC codes will lead to fewer freight classification discrepancies between shippers and carriers?
Keith: This will depend mostly on shippers getting the correct dimensions and weight of the shipping units and using that information for initial rate and quote.
Would you say most LTL shippers are already collecting the height, width, length and weight of their freight or will this be new for them?
Keith: If it is not provided by the [vendor], they are getting it when it hits their dock and they get the dimensions of the freight. They would prefer getting the correct dimensions up front as it only helps with planning on pickup, etc.
How can shippers determine their new freight classifications?
Keith: We are updating ClassIT+, so they should really be looking to purchase a ClassIT+ license, and this will allow them to look up NMFC item numbers. Also, go to https://info.nmfta.org/2025-nmfc-changes. We have provided some tools and links there that can help. And you can sign up for updates as we are looking at releasing additional tools for shippers in the future.
If they haven’t already, when do you recommend LTL shippers start getting into the habit of including dimensions when getting quotes and dispatching freight?
Keith: NMFTA started moving items to full density several years ago. I would suggest as soon as possible, develop a freight profile and keep it updated.
What do you think is the most important thing for LTL shippers to know about the NMFTA freight classification changes?
Keith: Density is the primary characteristic, so start getting dimensions of your freight. Go to https://info.nmfta.org/2025-nmfc-changes/shippers for more information.
What do you think is the most important thing for LTL carriers to know about the NMFTA freight classification changes?
Keith: Density is the primary characteristic. When talking to customers, emphasize that dimensions are key going forward.
How J.B. Hunt Can Help
We created a guided workflow for booking LTL shipments in your J.B. Hunt 360°® account to help take out some of the guesswork when it comes to freight class and accessorial selections. If you need more assistance finding your freight class code before booking, check out the examples we posted here.