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There are currently 4 names in this directory beginning with the letter H.
Harmonic Vibration
The consistent vibration intermodal loads experience while riding on the rails. The vibration is not intense, but consistent and if not properly blocked can move the freight both vertically and horizontally in the container.

Hazardous Material (Haz Mat)
Substance or combination thereof which, because of its quantity, concentration, physical or chemical characteristics, may cause or significantly pose a substantial hazard to human health or the environment when improperly packaged, stored, transported or otherwise managed.

Rail or truck term used to define the highest revenue generating shipping lane from shipper to receiver.

HHG (Household Goods )
Household goods are personal effects and property used within the household. Under rail circulars HHG is a restricted commodity with limited liability.