28 CFR § 541.65 - Regional Director review and appeal.
(a) The Regional Director shall review the decision and supporting documentation of the Hearing Administrator and, if submitted, the information contained in an inmate's appeal. The Regional Director shall accept or reject the Hearing Administrator's decision within 30 working days of its receipt, unless for good cause there is reason for delay, which shall be documented in the record. The authority of the Regional Director may not be delegated below the level of acting Regional Director.
(b) The Regional Director shall provide a copy of his decision to the Warden at the institution housing the inmate, to the inmate, and to the Hearing Administrator.
(c) An inmate may appeal a decision of the Regional Director, through the Administrative Remedy Program, directly to the National Inmate Appeals Administrator, Office of General Counsel, within 30 calendar days of the Regional Director's decision (see 28 CFR 542.15).