NMFC Item 222
The rule in the National Motor Freight Classification that sets construction standards for fibreboard boxes shipped by LTL truck.
In practice
It ties a box's board grade to the gross weight and size it may carry. Packgent has not published the limits yet: they are copyrighted tariff content that must be checked against the current edition.
See it on Packgent
Related terms
- UFC Rule 41
- The rail counterpart of NMFC Item 222, in the Uniform Freight Classification.
- Box maker's certificate
- A printed stamp, usually on a bottom flap, in which the box maker certifies that the box meets a carrier classification rule.
- Mullen test
- The common name for the bursting-strength test of board, after the Mullen tester.
- Freight density
- Shipment weight divided by its cubic feet, in pounds per cubic foot.
Definitions written by Packgent, last reviewed 2026-10-27. All terms.