Routes of operation

Authorized combinations of vehicles may be operated on all four-lane divided state highways and on those state highways designated by the director as shown on special highway maps available at the highway patrol and department of transportation headquarters in Bismarck and at the respective district offices in Williston, Minot, Devils Lake, Grand Forks, Fargo, Valley City, Jamestown, and Dickinson. Authorized combinations of vehicles may travel off the designated system a distance of ten miles [16.09 kilometers] on a state highway for the purpose of procuring food, fuel, repairs, obtaining sleeping quarters (rest), or going to a terminal or points of loading or unloading.