Regulations require you to display a USDOT number whether you operate wholly within New York (intrastate) or across state lines (interstate). APPLICANTS SUBJECT TO FEDERAL MOTOR CARRIER SAFETY REGULATIONS-.Carrier Packets: Documents Every Trucking Company Should Have On Hand. By. Caroline Asiala. –. Welcome Motor Carriers,. The Wisconsin Department of Transportation Division of Motor Vehicles (DMV) welcomes you to doing business in Wisconsin. Instead of completely closing your business, you can keep your authority active, so it is easier to come back or lease owneroperators in the future. They both include a spot for the carrier to sign that it is familiar with Federal Motor Carrier Safety Regulations.