25 C.F.R. § 152.14
Section 2(b) of the Act of August 11, 1955 (69 Stat. 666), authorizes the Secretary to issue an order removing restrictions to an Indian of the Five Civilized Tribes without application therefor. When the Secretary determines an Indian to be competent, he shall notify the Indian in writing of his intent to issue an order removing restrictions 30 days after the date of the notice. This decision may be appealed under the provisions of part 2 of this chapter within such 30 days. All administrative appeals under that part will postpone the issuance of the order. When the decision is not appealed within 30 days after the date of notice, or when any dismissal of an appeal is not appealed within the prescribed time limit, or when the final appeal is dismissed, an order removing restrictions will be issued.
25 C.F.R. § 152.14