To determine the LTL class rating of a load, consult the National Motor Freight Classification Handbook. Alternatively, use a rating tool, such as the Fedex Freight Classification Tool, which will automatically calculate the rating based on the specifications of the load.
The National Motor Freight Classification is a system for classifying less-than-truckload consignments based on ease of transportation. It is used by companies in the freight industry to determine the cost and necessary packaging of a consignment. The NMFC uses density, stow-ability, handling and liability to classify consignments into one of 18 categories. By identifying the correct class rating, a freight sender can avoid paying excessive freight charges or inadvertently violating transport laws.