Except as provided in §§ 4003.4 and 4003.5 , a request for reconsideration must be filed within 30 days after the date of the initial determination of which reconsideration is sought or, when administrative review includes a procedure in part 4903 of this chapter, by the date that is specified in PBGC's notice of the right to request review.
29 C.F.R. §4003.32