34 C.F.R. § 21.52
(b) The initial decision must include the information required under § 21.51(b). However, instead of the information required under § 21.51(b)(3), the initial decision must inform the applicant of—
(d) If the applicant or the Department's counsel does not appeal the adjudicative officer's initial decision to the CRRA and the Secretary does not decide to review the initial decision under § 21.54(a), the initial decision becomes the Department's final decision 60 days after it is issued by the officer.
(Authority: 5 U.S.C. 504(b)(1)(C); 20 U.S.C. 1681; 29 U.S.C. 794; 42 U.S.C. 2000d-1 et seq. and 6101 et seq.)