Minnesota Statutes Transportation (Ch. 160-174A) § 168.185. USDOT numbers

(a) Except as provided in paragraph (d), an owner of a truck or truck-tractor having a gross vehicle weight of more than 10,000 pounds, as defined insection 169.011, subdivision 32, shall report to the commissioner at the time of registration its USDOT carrier number.

(b) Assigned USDOT numbers must be displayed as required bysection 221.031, subdivision 6. The vehicle owner shall notify the commissioner 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 commissioner shall suspend the owner's registration.

(d) This section does not apply to (1) a farm truck that is not used in interstate commerce, (2) a vehicle that is not used in intrastate commerce or interstate commerce, or (3) a vehicle that is owned and used solely in the transaction of official business by the federal government, the state, or any political subdivision.