(d)CONDUCT OF INSPECTIONS.—In conducting an inspection of a registered public accounting firm under this section, the Board shall—
(1)inspect and review selected audit and review engagements of the firm (which may include audit engagements that are the subject of ongoing litigation or other controversy between the firm and 1 or more third parties), performed at various offices and by various associated persons of the firm, as selected by the Board;
(2)evaluate the sufficiency of the quality control system of the firm, and the manner of the documentation and communication of that system by the firm; and
(3)perform such other testing of the audit, supervisory, and quality control procedures of the firm as are necessary or appropriate in light of the purpose of the inspection and the responsibilities of the Board.
(e)RECORD RETENTION.—The rules of the Board may require the retention by registered public accounting firms for inspection purposes of records whose retention is not otherwise required by section 103 or the rules issued there under.