(a) Any party to a case who is adversely affected by a decision of an officer of the Bureau of Land Management or of an administrative law judge shall have a right to appeal to the Board, except
(1) As otherwise provided in Group 2400 of Chapter II of this title,
(2) To the extent that decisions of Bureau of Land Management officers must first be appealed to an administrative law judge under section 4.470 and Part 4100 of this title,
(3) Where a decision has been approved by the Secretary, and
(4) As provided in paragraph (b) of this section.
(b) For decisions rendered by Departmental officials relating to land selections under the Alaska Native Claims Settlement Act, as amended, any party who claims a property interest in land affected by the decision, an agency of the Federal Government or a Regional Corporation shall have a right to appeal to the Board.