Subclasses for
15520-1
15520-2
15520-3
15520-4
15520-5
15520-6
15520-7
15520-8
15520-9
15520-10
15520-11
400
300
250
175
125
100
92.5
85
70
65
60
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Less than 1
1 but less than 2
2 but less than 4
4 but less than 6
6 but less than 8
8 but less than 10
10 but less than 12
12 but less than 15
15 but less than 22.5
22.5 but less than 30
30 or greater
Less than 1
1 but less than 2
2 but less than 4
4 but less than 6
6 but less than 8
8 but less than 10
10 but less than 12
12 but less than 15
15 but less than 22.5
22.5 but less than 30
30 or greater
An organization known as the National Motor Freight Traffic Association (NMFTA) publishes a list of freight class designations, codes, and subclasses for many commonly shipped commodities (https://classit.nmfta.org/). You must pay a subscription fee to view this list. For more information about freight classes for free on our freight classes pages.
Adding NMFC code to a shipment is technically optional, but the NMFC codes can help avoid reclassification and ensure you're using the correct freight class number.
No, not all commodities have freight subclasses, although many do.
