Any oral or written hearing required to establish the Commission's right to collect a delinquent debt through administrative wage garnishment shall be presided over by a hearing official designated by the Executive Director, with the concurrence of the General Counsel or the General Counsel's designee. Any qualified and impartial employee of the Commission designated by the Executive Director may serve as a hearing official. Except as otherwise provided in this section, the hearing shall be conducted in accordance with the requirements of, and the procedures set forth in, 31 CFR 285.11(f). All documents presented to the hearing official for his or her consideration shall be marked as exhibits and retained in the record. All testimony given at an oral hearing, either in person or by telephone, shall be under oath or affirmation; a transcript of the hearing shall be prepared and made part of the record. When a debtor requests a hearing, the designated hearing official shall hold the hearing and issue his or her written decision within 60 days of the Commission's receipt of the request, unless otherwise approved, in writing, by the Executive Director.