(a) No decision of an administrative law judge, Indian probate judge, or BIA official that at the time of its rendition is subject to appeal to the Board, will be considered final so as to constitute agency action subject to judicial review under 5 U.S.C. 704,unless.
(b) No further appeal will lie within the Department from a decision of the Board.
(c) The filing of a petition for reconsideration is not required to exhaust administrative remedies.