17 C.F.R. § 10.84
(c) Effect of initial decision. The initial decision shall become the decision of the Commission 30 days after service thereof, except:
(2) The decision shall not become final as to any party to the proceeding if, within 30 days after the initial decision and order, the Commission itself shall have placed the case on its own docket for review or stayed the effective date of the decision.
In the event that the initial decision becomes the final decision of the Commission with respect to a party, that party shall be duly notified thereof by the Proceedings Clerk. The notice shall state that the time for filing a notice of appeal by the party has expired, that the Commission has determined not to review the initial decision on its own initiative and shall specify the date on which a final order in the proceeding shall become effective as against that party.
[41 FR 2511, Jan. 16, 1976, as amended at 60 FR 54802, Oct. 26, 1995; 61 FR 21954, May 13, 1996; 63 FR 55794, Oct. 19, 1998]