49 CFR § 580.16 - Availability of prior title and power of attorney documents to transferee.
(a) In circumstances in which a power of attorney has been used pursuant to § 580.13, if a subsequent transferee elects to return to their transferor to sign the disclosure on the physical or electronic title and does not give their transferor a power of attorney pursuant to § 580.14, the transferor shall, upon the subsequent transferee's request, show that transferee a copy of the physical or electronic power of attorney that he they received from their transferor.
(b) Upon request of a transferee, a transferor who was granted a power of attorney by their transferor and who holds the title to the vehicle in their own name, must show to the transferee the copy of the previous owner's title and the physical or electronic power of attorney form.