These Trucker Road Atlases and Trucker Maps have a lot more information than regular (four-wheeler) maps do. They tell truckers the locations of weight stations, low bridges, non-truck routes, weight limits (per state), trucker chain laws (per state), and even emergency contact phone numbers and trucker information numbers are included (per state). Get a good Rand McNally map specifically for truckers and stay out of trouble with the information you need at your fingertips!