251.92—Dismissal.
(a)
The Reviewing Officer shall dismiss an appeal and close the record without a decision on the merits when:
(2)
Appellant's notice of appeal is not filed within the required time period, or the notice of appeal fails to meet the minimum requirements of § 251.90 of this subpart to such an extent that the Reviewing Officer lacks adequate information on which to base a decision.
(7)
A request for review of the same decision has been filed by the same person under part 217 of this chapter.
(b)
The Reviewing Officer shall give written notice of dismissal that includes an explanation of why the appeal is dismissed.
(c)
A Reviewing Officer's dismissal decision is subject to discretionary review at the next administrative level as provided for in § 251.87(d), except when a dismissal decision results from withdrawal of an appeal by an appellant, withdrawal of the initial decision by the Deciding Officer, or a mediated resolution of the dispute.