(a) A party aggrieved by a final order of an administrative judge under § 4.352 , or by a final order upon reconsideration of an administrative judge under § 4.354 , may appeal to the Board. A copy of the notice of appeal must also be sent to the Project Director and to the administrative judge whose decision is being appealed.(b) The notice of appeal must be filed with the Board no later than thirty (30) days from the date on which the final order of the administrative judge was mailed, or, if there has been a petition for reconsideration or rehearing filed, no later than thirty (30) days from the date on which the final order upon reconsideration of the administrative judge was mailed. A notice of appeal that is not timely filed will be dismissed.(c) The Project Director shall ensure that the record is expeditiously forwarded to the Board.(d) Within thirty (30) days after the notice of appeal is filed, the appellant shall file a statement of the reasons why the final order or final order upon reconsideration is in error. If the Board finds that the appellant has set forth sufficient reasons for questioning the final order or final order upon reconsideration, the Board will issue an order giving all parties in interest an opportunity to respond, following which a decision shall be issued. If the Board finds that the appellant has not set forth sufficient reasons for questioning the final order, the Board may issue a decision on the appeal without further briefing.(e) The Board may issue a decision affirming, modifying, or vacating the final order or final order upon reconsideration. A decision on appeal by the Board either affirming or modifying the final order or final order upon reconsideration shall be final for the Department of the Interior. In the event the final order or final order upon reconsideration is vacated, the proceeding shall be remanded to the appropriate administrative judge for reconsideration and/or rehearing.56 FR 61383, Dec. 3, 1991, as amended at 67 FR 4368 , Jan. 30, 2002; 88 FR 5793 , Jan. 30, 2023