The formal written request shall be in the form of a letter or memorandum to an appropriate official of the financial institution from which financial records are requested. The request shall be signed by an issuing official of the requesting Department unit. It shall set forth that official's name, title, business address and business phone number. The request shall also contain the following:
In cases where customer notice is delayed by a court order, a copy of the court order shall be attached to the formal written request.
31 C.F.R. § 14.4