So what's the deal with weight stations?

Airdaile wrote:
Maryland is the only state I've ever stopped at a weigh station because...

8. What vehicles must go through weigh stations in Maryland?

All vehicles with a gross vehicle weight or gross vehicle weight rating of greater than 10,000 pounds must stop at open weigh stations. Only vehicles that are operating in commerce may be subject to a safety inspection.

Note that it says all vehicles and makes a separate note about the different treatment of commercial vehicles.

Also note it doesn't say Combined gross vehicle weight. So when towing with my Dodge Ram 2500 with a GVWR of 8,900 lbs, I'm driving right past.
If you are in a Motorhome with a rating over 10K you might want to stop.