12 CFR 1215.16: Fees.

(a) The Director may condition the production of records, information, or an employee's appearance on advance payment of reasonable costs to FHFA, which may include but are not limited to those associated with employee search time, copying, computer usage, and certifications.

(b) Witness fees will include fees, expenses, and allowances prescribed by the rules applicable to the particular legal proceeding. If no fees are prescribed, FHFA will base fees on the rule of the federal district court closest to the location where the witness will appear. Such fees may include but are not limited to time for preparation, travel, and attendance at the legal proceeding.