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What Is Your Shipment's NMFC Code?

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What Is Your Shipment's NMFC Code?

NMFC codes can be confusing, but they’re also very helpful in determining how much it should cost to ship your freight and determine any tariffs that may need to be paid upon interstate, intrastate, or international shipping. Here, you’ll find a quick run-down on these helpful little codes.

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Operations Manager, GreenLeaf Supplies

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Code Conundrums?

NMFC codes play a critical role in how your freight is classified, priced, and handled by carriers. Speaking with a freight expert helps ensure your shipments are accurately classified, reducing the risk of reclassification fees and unexpected charges.

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What is Your Shipment’s NMFC Code? (Cont.)

What is an NMFC Code?

An NMFC code is a number assigned to shipments that helps group or grade the freight to be shipped. The National Motor Freight Traffic Association developed these ratings in an effort to help standardize shipping and tariff rates. There are 18 different ratings between 50 and 500.

Freight classed in the lower classes tends to be less valuable, more durable, and easier to move all around and is therefore frequently less expensive to ship. Freight in the higher classes require special handling such as climate control or special packing or loading techniques to help reduce shipment damage. Higher class freight generally costs more to ship.

How are NMFC Codes Determined?

Four different factors are taken into account when determining the NMFC code of a load:

  • Density
  • Handling
  • Stowability
  • Liability

Density refers to the space freight takes up relative to its weight. Handling refers to how easy (or difficult) freight is to handle. Stowability refers to how easy freight is to get on a trailer. For instance, hazardous materials and bulky or extremely heavy freight are more difficult to load and haul. Liability covers whether freight is fragile or perishable, requiring special care to get it to its destination intact.

How Do NMFC Codes Impact Your Shipment?

The implications of your load’s NMFC code is two-fold. The classification of a shipment provides insight into the tariffs associated with the load from a government standpoint and the shipping rates you’ll be charged.

Carriers are able to determine how much it will cost them and therefore how much they should charge to haul a load based on these codes.

Freight codes are also used when an insurance claim is made on freight or a company is seeking to recover damages from a carrier.

If you need help classifying freight, you can contact the NMFTA’s classification experts. If you’re wondering what NMFC codes mean for your business, contact BlueGrace for a free supply chain audit by one of our experts.

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10 NMFC related FAQs

An NMFC code stands for National Motor Freight Classification code, which is a standardized freight class used to categorize goods based on density, handling, liability, and stowability. It determines pricing in less-than-truckload (LTL) shipping. BlueGrace helps shippers identify the correct NMFC code to ensure accurate freight class and avoid reclassification fees.

An NMFC code is required by LTL carriers to determine freight class and freight rates, because it reflects how easily a product can be transported. BlueGrace’s logistics experts help ensure that shipments are classified correctly so customers pay fair rates and reduce risk of billing adjustments.

To find an NMFC code, you need to know your product’s description, packaging, weight, and density. Carriers use this information to assign a freight class. BlueGrace can review shipment details and recommend the correct NMFC code to help avoid misclassification.

Yes — NMFC codes directly influence LTL freight rates because they are tied to freight class categories. A lower class generally means lower cost. BlueGrace works with shippers to optimize classification and choose the best pricing strategy based on the NMFC code.

Published NMFC tables can be found online through carrier or industry sites, but access may require a subscription. BlueGrace maintains access to the latest classification resources and can quickly identify the correct NMFC for your shipment.

No — while the NMFC system is standardized, carriers may interpret classification guidelines slightly differently. BlueGrace navigates these interpretations and helps shippers choose carrier agreements that align with accurate NMFC classifications.

Yes — palletized shipments still require an NMFC code based on what is on the pallet, not the pallet itself. BlueGrace helps shippers classify palletized freight correctly to ensure efficient pricing and handling.

The NMFC code should be listed on bills of lading (BOL) and freight invoices to ensure the carrier charges based on the agreed classification. BlueGrace assists shippers in preparing accurate documentation that includes the correct NMFC code.

No — NMFC refers to the classification system and code reference, while freight class is a value (e.g., 50, 70, 100, 150) derived from criteria within the NMFC system. BlueGrace educates shippers on the difference and helps them choose the proper freight class.

Yes. If a carrier reclassifies a shipment differently than expected, BlueGrace can support review, documentation, and dispute resolution to help ensure fair treatment and proper rates based on accurate NMFC rules.