Each product or commodity gets an NMFC freight class from 50 to 500, based on four key transportation characteristics:
Density
How heavy the freight is relative to the space it takes up.
The denser and easier to move, the lower the class—and the lower the cost. Bulkier, fragile, or hazardous items have higher classes.
Why the Right Freight Class Matters
Accurate freight classification keeps your shipments (and your business) running smoothly.
Using the correct NMFC item number means:
- Fewer billing surprises.
- Safer handling.
- Faster, more efficient deliveries.
Misclassify freight, and you could face reclassification charges, delays, or damage. The NMFC helps you avoid those roadblocks.
Avoid Freight Class Mistakes
Freight mistakes cost time and money—but they’re easy to prevent with the right tools.
NMFTA’s ClassIT+TM helps you find the correct NMFC item number, calculate density, and confirm freight class before you ship.
Always use accurate measurements for weight and dimensions—never estimates.
Get It Right
Every Time
Freight classification doesn’t have to be complicated. With NMFTA tools like ClassIT+, you can quickly search, calculate, and confirm your NMFC codes.
Because when you classify with confidence, your freight and your business get to where it’s going.
NMFC Resources & Products
NMFC Resources
NMFC Products
ClassIT+
Innovating how the LTL industry classifies freight with one intuitive platform.
NMFC Book
Access the hard-copy standard that provides a comparison of commodities moving in interstate, intrastate, and foreign commerce.
Classification Interpretation Assistance
Submit a commodity’s specific information and get an expert opinion on which NMFC item number and description applies.
SKU Interpretations Assistance
NMFTA staff is available to help shippers and 3PLs determine the proper classification for their products.
Public Dockets
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