NMFC (National Motor Freight Classification): Definition and Examples

What is NMFC?

NMFC stands for National Motor Freight Classification, an industry standard maintained by the National Motor Freight Traffic Association (NMFTA). It groups commodities for less-than-truckload (LTL) shipping using density, handling, stowability and liability. It is a classification system, not a government tariff or a complete shipping price.

NMFC item numbers and freight classes

An NMFC item identifies a commodity description and its applicable provisions. A freight class describes its transportation characteristics. These are different pieces of information: an item may have subprovisions that assign different classes depending on density or other conditions. The correct entry also depends on packaging and the actual product being shipped.

Changes effective in July 2025 expanded density-based classification for many commodities. An old bill of lading may therefore contain an outdated item or class. Check the current NMFC entry and the carrier's applicable terms before reusing it.

What information should shippers prepare?

A precise commodity description, including material and use.
Packaged weight in pounds and outside dimensions in inches.
The number and type of handling units.
Packaging, stackability and any unusual handling requirements.

For example, a pallet of packaged metal components and a similarly sized pallet of fragile assembled equipment may require different classification checks. Matching the dimensions alone is not enough.

Planning a shipment with DAGO Express

Provide the actual freight description, dimensions, weight and route when requesting transport. NMFC is especially relevant to class-rated LTL services; it should not be assumed to determine the price of every dedicated delivery. The service and pricing basis must match the confirmed quote.