12 CFR § 4.40 - Fees for services.
(a) Fees for records search, copying, and certification. The requester shall pay a fee to the OCC, or to a commercial copier under contract to the OCC, for any records search, copying, or certification in accordance with the standards specified in § 4.17. The OCC may require a requester to remit payment prior to providing the requested information.
(b) Witness fees and mileage. A person whose request for testimony of a current OCC employee is approved shall, upon completion of the testimonial appearance, tender promptly to the OCC payment for the witness fees and mileage. The litigant shall compute these amounts in accordance with 28 U.S.C. 1821. A litigant whose request for testimony of a former OCC employee is approved shall tender promptly to the witness any witness fees or mileage due in accordance with 28 U.S.C. 1821.