49 CFR 390.42: Drivers and motor carriers operating intermodal equipment.

(a) Before operating intermodal equipment over the road, the driver accepting the equipment must inspect the equipment components listed in § 392.7(b) of this subchapter and be satisfied they are in good working order.

(b) A driver or motor carrier transporting intermodal equipment must report to the intermodal equipment provider, or its designated agent, any known damage, defects, or deficiencies in the intermodal equipment at the time the equipment is returned to the provider or the provider's designated agent. The report must include, at a minimum, the items in § 396.11(b)(1) of this chapter.