(a) Commission review other than pursuant to an application for review. The Commission may, on its own initiative, order review of any final disciplinary sanction, including disapproval of a completed application for registration of a public accounting firm, imposed by the Board that could be subject to an application for review pursuant to § 201.440(a) within 40 days after the Board filed notice thereof pursuant to § 240.19d-4 of this chapter.

(b) Supplemental briefing. The Commission may at any time prior to the issuance of its decision raise or consider any matter that it deems material, whether or not raised by the parties. The Commission will give notice to the parties and an opportunity for supplemental briefing with respect to issues not briefed by the parties where the Commission believes that such briefing could significantly aid the decisional process.