(a) Every national securities exchange, national securities association, registered clearing agency and the Municipal Securities Rulemaking Board shall keep and preserve at least one copy of all documents, including all correspondence, memoranda, papers, books, notices, accounts, and other such records as shall be made or received by it in the course of its business as such and in the conduct of its self-regulatory activity.

(b) Every national securities exchange, national securities association, registered clearing agency and the Municipal Securities Rulemaking Board shall keep all such documents for a period of not less than five years, the first two years in an easily accessible place, subject to the destruction and disposition provisions of Rule 17a-6.

(c) Every national securities exchange, registered securities association, registered clearing agency and the Municipal Securities Rulemaking Board shall, upon request of any representative of the Commission, promptly furnish to the possession of such representative copies of any documents required to be kept and preserved by it pursuant to paragraphs (a) and (b) of this section.