(a) Appeal to Office of Hearings and Appeals. When the Authorizing or Denying Official or FOIA Officer Official has denied a request for records in whole or in part or has responded that there are no documents responsive to the request consistent with §1004.4(d), or when the Freedom of Information Officer has denied a request for expedited processing consistent with §1004.5(d) for waiver of fees consistent with §1004.9, the requester may, within 30 calendar days of its receipt, appeal the determination to the Office of Hearings and Appeals.