12 CFR § 271.8 - Subpoenas.
(a) Advice by person served. If any person, whether or not an officer or employee of the Committee, of the Board of Governors of the Federal Reserve System, or of a Federal Reserve Bank, has information of the Committee that may not be disclosed by reason of § 271.7 and in connection therewith is served with a subpoena, order, or other process requiring the person's personal attendance as a witness or the production of documents or information upon any proceeding, the person should promptly inform the Secretary of the Committee of such service and of all relevant facts, including the documents and information requested and any facts that may be of assistance in determining whether such documents or information should be made available; and the person should take action at the appropriate time to inform the court or tribunal that issued the process, and the attorney for the party at whose instance the process was issued, if known, of the substance of this part.
(b) Appearance by person served. Except as disclosure of the relevant information is authorized pursuant to this part, any person who has information of the Committee and is required to respond to a subpoena or other legal process shall attend at the time and place therein mentioned and decline to disclose such information or give any testimony with respect thereto, basing such refusal upon this part. If, notwithstanding, the court or other body orders the disclosure of such information, or the giving of such testimony, the person having such information of the Committee shall continue to decline to disclose such information and shall promptly report the facts to the Committee for such action as the Committee may deem appropriate.