1 ton Dually Pickup Owners Question

D and A plus 6 wrote:
I am thinking about upgrading from a f250 to a f350 Dually. I was told it was a federal law that they are treat like a road tractor/semi, and must keep log book, CDL, med card, dot number on side of truck et. My friend was pulling a 5th wheel livestock trailer, got pulled over in a neighboring state and received several tickets because he didn't have any of this.
I've seen several duallies pulling travel trailers and dont see dot numbers on the side of their trucks, What the difference or what do you do not to get bothered?

Thanks for any info?

Was your friend hauling livestock across state lines, and for hire? If so then the trooper was right. He is a commerical vehicle driver . Now if it had been a 5th wheel RV owned by him and used personally they he is exempt from needing a CDL.