I can tell you if you are stopped and wieghed and are heavier than then your rated wieght you will get a ticket. In my case I was under the vehicles gross wieght but the company decided to save some money and only registered the truck for 6,000# and I was carrying 10,500#. Gross physical limit was 11,000# for the truck. I was allowed to drive off with a $1600 ticket. I believe I would have had to unload the truck if it had actually been over the vehicle's rated wieght, but not sure.