You see it more times going down the road than you like. You shouldn't even be allowed to pull an overloaded one off of a dealer lot... but again that's just my opinion.... there are no laws or rules that I know of ...they're allowed to do whatever they want and you as the customer are supposed to know what you're doing but that isn't always the case... that's why I over-dramatized my first reply to bring attention to this. One of these days they're going to start making these large rigs pull into weigh stations then let's see where the discussion goes. That will never happen but these triple axle rigs are not getting any smaller...I looked at the weight stickers of a few and I'm thinking you almost have to have a 550 to pull one. My dually doesn't even come close to the weight numbers..an older 350 dually these days is like an old news story.. outdated, not dead, it's way useable but I don't see the allure of how big they have gotten. I mean I get it, full timers, big family with kids and toys etc. but you also have to have some serious bank to put one of these land yachts together and considering how much your going to use it and better yet, where to store it. Have fun out there happy holidazed.