; (2) shall be accompanied by a signed statement (or, in the case of a contribution made online or through other electronic means, an electronic equivalent) containing the contributor’s name and address; and (3) shall be acknowledged by a receipt that is sent to the contributor with a copy (in paper or electronic form) kept by the candidate for the Commission. (c) Verification of contributions The Commission shall establish procedures for the auditing and verification of the contributions received and expenditures made by participating candidates under this title, including procedures for random audits, to ensure that such contributions and expenditures meet the requirements of this title. 513. Certification (a) Deadline and Notification (1) In general Not later than 5 business days after a candidate files an affidavit under section 511(a)(4), the Commission shall— (A) determine whether or not the candidate meets the requirements for certification as a participating candidate; (B) if the Commission determines that the candidate meets such requirements, certify the candidate as a participating candidate; and (C) notify the candidate of the Commission's determination. (2) Deemed certification for all elections in election cycle If the Commission certifies a candidate as a participating candidate with respect to the first election of the election cycle involved, the Commission shall be deemed to have certified the candidate as a participating candidate with respect to all subsequent elections of the election cycle. (b) Revocation of certification (1) In general The Commission shall revoke a certification under subsection (a) if— (A) a candidate fails to qualify to appear on the ballot at any time after the date of certification (other than a candidate certified as a participating candidate with respect to a primary election who fails to qualify to appear on the ballot for a subsequent election in that election cycle)