here in ontario canada the 10,000lbs rate was a driver liscence issue,if you went over the 10,000lbs you needed to get a class a witch is a cdl,that has now changed if youre towing your rv you don't need a cdl as long as you stay under the 11000kg witch is max on class g liscence,the registered sticker weight on your registration changes the cost of you're renewable sticker every year, some people don't put the proper weight just to try and cheat to pay less ,my gmc sierra 3500 dually is plated for 4800kg so my sticker price here in ontario is about 300.00 dollars verses less than 200.00 and if youre registered weight is less, if pulled over they can issue a citation,also over 4600kg, an e test is manditory weather its a 2500 or 3500 series.when they do enforcement spot checks they use portable scales,its totaly illegal and imorral to pass the max of your vehicle,for you to put the family in the truck when exciding the truck capacity is plain wrong,you want to endanger your life or someone else, do it alone on an empty road,and if you do have an accident in ontario and someone has a smart lawyer weather your at fault or not if you get caught with a overloaded truck youre insurance company will leave you hight and dry,it has happened here,the truck anf fifth was not at fault until the scale came to the seen,he became responsible for the hole mess,my insurance renewable contract requires me to check mark a clause that it is my responsibilty to make sure that my truck is capable of towing my rv,and in any case the driver is responsible for what you're driving regardles if your the owner or not