31 C.F.R. § 363.46
What evidence is required to establish the validity of judicial proceedings?
(a) We will require certified copies of the final judgment, decree, or court order, and any necessary supplementary proceedings.
(b) A transaction request by a trustee in bankruptcy or a receiver of an insolvent's estate must be supported by evidence of appointment and qualification.
(c) A transaction request by a receiver in equity or a similar court officer (other than a receiver of an insolvent's estate) must be supported by a copy of an order that authorizes the receiver or similar court officer to take possession and control of the security.