Trailers For Sale ,ont When Pulling Two Trailers What Is The Maximum Length Of A Single Trailer?

When pulling two trailers what is the maximum length of a single trailer? - trailers for sale ,ont

I would like to draw two trailers. I have to as long as possible, while the other can be shorter than the first. Must be able to drive on local roads and not limited to the interstate corridors. I leave the vehicle in Idaho or Nevada. I wonder what can be the maximum duration of tractors and trailers, and what is the maximum length of the trailer may be longer. I am looking for someone who knows the laws of transportation.