hummm, if it has not for hire on it, i believe DOT rules do not apply. I drive a 2000 Peterbilt for a living, and some times i take a vacation and go out to Sc, and drive the Pete and take my 32' bumper pull trailer, at that time i do not even stop at scale houses and drive more than 11 hours a day. and No log book. and never had a probum.. YET,, LOL. But i am not close to the max lenth. heck i would just drive it, and then ask for forgiveness,