168.185 USDOT numbers.
(a) An owner of a truck or truck-tractor having a gross vehicle weight of more than 10,000 pounds, as defined in section 169.01, subdivision 46, other than a farm truck that is not used in interstate commerce, shall report to the registrar at the time of registration its USDOT carrier number. A person subject to this paragraph who does not have a USDOT number shall apply for the number at the time of registration by completing a form MCS-150 Motor Carrier Identification Report, issued by the Federal Motor Carrier Safety Administration, or comparable document as determined by the registrar. The registrar shall not assign a USDOT carrier number to a vehicle owner who is not subject to this paragraph.
(b) Assigned USDOT numbers need not be displayed on the outside of the vehicle, but must be made available upon request of an authorized agent of the registrar, peace officer, other employees of the State Patrol authorized in chapter 299D, or employees of the Minnesota Department of Transportation. The vehicle owner shall notify the registrar if there is a change to the owner's USDOT number.
(c) If an owner fails to report or apply for a USDOT number, the registrar shall suspend the owner's registration.
(d) Until October 1, 2003, paragraphs (a) to (c) do not apply to an agricultural fertilizer or agricultural chemical retailer while exclusively engaged in delivering fertilizer or agricultural chemicals to a farmer for on-farm use.