An institution-affiliated party who is suspended or removed from office or prohibited from participation in the institution's affairs may request an informal hearing within 30 days of service of the notice or order. The request shall be filed in writing with the Secretary, Board of Governors of the Federal Reserve System, Washington, DC 20551. The request shall state with particularity the relief desired and the grounds therefor and shall include, when available, supporting evidence in the form of affidavits. If the institution-affiliated party desires to present oral testimony or witnesses at the hearing, the institution-affiliated party must include a request to do so with the request for informal hearing. The request to present oral testimony or witnesses shall specify the names of the witnesses and the general nature of their expected testimony.