What does the abbreviation HHG for cdl truck driving stand for?

It might be a reference to heavy hauling/haulage, or it might simply be the abbreviations of a company name. It could be of significant meaning in a country other than the US, as well. I'd be a bit curious to know where you saw this at. Can you email me the source? My email address is in my bio page.

HHG may refer to what the truck is hauling. It is an abbreviation for Household Goods.