Section 7.1 - Purpose and scope(a) This part contains the rules of practice of the Administrative Review Board when it is exercising its jurisdiction described in paragraph (b) of this section.(b) The Board has jurisdiction to hear and decide in its discretion appeals concerning questions of law and fact from final decisions under parts 1, 3, and 5 of this subtitle including decisions as to the following:(1) Wage determinations issued under the Davis-Bacon Act and its related minimum wage statutes;(2) debarment cases arising under part 5 of this subtitle;(3) controversies concerning the payment of prevailing wage rates or proper classifications which involve significant sums of money, large groups of employees, or novel or unusual situations; and(4) recommendations of a Federal agency for appropriate adjustment of liquidated damages which are assessed under the Contract Work Hours and Safety Standards Act.(c) In exercising its discretion to hear and decide appeals, the Board shall consider, among other things, timeliness, the nature of the relief sought, matters of undue hardship or injustice, or the public interest.(d) In considering the matters within the scope of its jurisdiction the Board shall act as the authorized representative of the Secretary of Labor. The Board shall act as fully and finally as might the Secretary of Labor concerning such matters, except as provided in Secretary's Order 01-2020 (or any successor to that order).(e) The Board is an essentially appellate agency. It will not hear matters de novo except upon a showing of extraordinary circumstances. It may remand under appropriate instructions any case for the taking of additional evidence and the making of new or modified findings by reason of the additional evidence.36 FR 10863, June 4, 1971, as amended at 61 FR 19985, May 3, 1996; 85 FR 13031, Mar. 6, 2020; 85 FR 30616, May 20, 2020 85 FR 13031, 4/20/2020; 85 FR 30616, 6/19/2020