(a) No decision, which at the time of its rendition is subject to appeal to a superior authority in the Department, shall be considered final so as to constitute Departmental action subject to judicial review under 5 U.S.C. 704, unless when an appeal is filed, the official to whom the appeal is made determines that public safety, protection of trust resources, or other public exigency requires that the decision be made effective immediately.

(b) Decisions made by officials of the Bureau of Indian Affairs shall be effective when the time for filing a notice of appeal has expired and no notice of appeal has been filed.

(c) Decisions made by the Assistant Secretary - Indian Affairs shall be final for the Department and effective immediately unless the Assistant Secretary - Indian Affairs provides otherwise in the decision.