A freight class is a group of freight codes used to calculate shipment costs.

The freight class can be used as one of the criteria for figuring shipment costs. For example, you could enter condition records for freight rates that specifically refer to a combination of tariff zone and freight class. The freight code is used if the material that is being shipped should figure into the shipment costs.

One or more freight codes are assigned to a freight class within a freight code set.

The following illustration is an example of how freight code set, freight code and freight class are interrelated.