5 C.F.R. § 2610.309
Within 30 days after issuance of an initial decision under this part, either the applicant or agency counsel may seek review of the initial decision on the fee application, or the Director (or his or her designee) may decide to review the initial decision on his or her own initiative, in accordance with the Office's review or appeal procedures applicable to the underlying proceeding. If neither the applicant nor agency counsel seeks review and the Director (or designee) does not take review on his or her own initiative, the initial decision on the application shall become a final decision of the Office of Government Ethics 30 days after it is issued. Whether to review a decision is a matter within the discretion of the Director (or his or her designee, if any). If review is taken, the Office will issue a final decision on the application or remand the application to the adjudicative officer for further proceedings.
5 C.F.R. § 2610.309