To establish a minimum public comment period with respect to proposed rules issued by the Securities and Exchange Commission.

“(l) Minimum public comment period

“(1) In general—With respect to a proposed rulemaking for which a public comment period is required under section 553 of title 5, United State Code, the Commission shall provide a public comment period of—

“(A) at least 60 days; or

“(B) if the Commission determines the proposed rule addresses imminent investor harm, at least 30 days.

“(2) Calculation of periods—For purposes of calculating the number of days in a period under paragraph (1) with respect to a proposed rulemaking—

“(A) a Federal holiday shall not be counted; and

“(B) the period shall begin on the date the proposed rule is published in the Federal Register.”