; and (B) if the Special Counsel requires the head of the agency to submit a supplemental report under paragraph (5), the reports submitted by the head of the agency collectively contain the information required under subsection (d). ; (C) in paragraph (3), by striking agency report received pursuant to subsection (c) of this section and inserting report submitted to the Special Counsel by the head of an agency under subsection (c) or paragraph (5) of this subsection ; and (D) by adding at the end the following: (5) If, after conducting a review of a report under paragraph (2), the Special Counsel concludes that the Special Counsel requires additional information or documentation to determine whether the report submitted by the head of an agency is reasonable and sufficient, the Special Counsel may request that the head of the agency submit a supplemental report— (A) containing the additional information or documentation identified by the Special Counsel