Driveaway services. In driveaway services, a removable device may be affixed on both sides or at the rear of a single driven vehicle. In a combination driveaway operation, the device may be affixed on both sides of any one unit or at the rear of the last unit. The removable device must display the legal name or a single trade name of the motor carrier and the motor carrier's USDOT number.
49 CFR § 390.21T
General. Every self-propelled CMV subject to this subchapter must be marked as specified in paragraphs (b), (c), and (d) of this section, and each unit of intermodal equipment interchanged or offered for interchange to a motor carrier by an intermodal equipment provider subject to this subchapter must be marked as specified in paragraph (g) of this section.