; (B) section 521(c) (relating to remittance of unused payments from the Fund); and (C) section 532 (relating to violations). (3) Investment returns Interest on, and the proceeds from, the sale or redemption of any obligations held by the Fund under subsection (c). (c) Investment The Commission shall invest portions of the Fund in obligations of the United States in the same manner as provided under section 9602(b) of the Internal Revenue Code of 1986. (d) Use of fund To make payments to participating candidates (1) Payments to participating candidates Amounts in the Fund shall be available without further appropriation or fiscal year limitation to make payments to participating candidates as provided in this title. (2) Mandatory reduction of payments in case of insufficient amounts in fund (A) Advance audits by commission Not later than 90 days before the first day of each election cycle (beginning with the first election cycle that begins after the date of the enactment of this title), the Commission shall— (i) audit the Fund to determine whether the amounts in the Fund will be sufficient to make payments to participating candidates in the amounts provided in this title during such election cycle