North Carolina General Statutes Chapter 20. Motor Vehicles § 20-101. Certain business vehicles to be marked

(a) A motor vehicle that is subject to 49 C.F.R. Part 390, the federal motor carrier safety regulations, shall be marked as required by that Part.

(b) A motor vehicle with a gross vehicle weight rating of more than 26,000 pounds that is used in intrastate commerce shall have (i) the name of the owner and (ii) the motor carrier's identification number preceded by the letters “USDOT” and followed by the letters “NC” printed on each side of the vehicle in letters not less than three inches in height. The provisions of this subsection shall not apply if any of the following are true:

(c) A motor vehicle that is subject to regulation by the North Carolina Utilities Commission shall be marked as required by that Commission and as otherwise required by this section.

(d) A motor vehicle equipped to tow or transport another motor vehicle, hired for the purpose of towing or transporting another motor vehicle, shall have the name and address of the registered owner of the vehicle, and the name of the business or person being hired if different, printed on each side of the vehicle in letters not less than three inches in height. This subsection shall not apply to motor vehicles subject to 49 C.F.R. Part 390.