; (B) a transition period not to exceed 180 days until such regulatory documents are delivered to such investors by electronic delivery; and (C) during a period not to exceed 2 years following the transition period set forth in subparagraph (B), delivery of an annual notice in paper form solely reminding such investors of the ability to opt out of electronic delivery at any time and receive paper versions of regulatory documents; (2) set forth requirements for the content of the initial communication described in paragraph (1)(A); (3) set forth requirements for the timing of delivery of a notice of website availability of regulatory documents and the content of the appropriate notice described in section 2(3)(B); (4) provide a mechanism for investors to opt out of electronic delivery at any time and receive paper versions of regulatory documents; (5) require measures reasonably designed to identify and remediate failed electronic deliveries of regulatory documents; (6) set forth minimum requirements regarding readability and retainability for regulatory documents that are delivered electronically; and (7) for covered entities other than brokers, dealers, investment advisers registered with the Commission, and investment companies, require measures reasonably designed to ensure the confidentiality of personal information in regulatory documents that are delivered to investors electronically. (c) Treatment of revisions not completed in a timely manner If the Commission fails to finalize the rules, regulations, amendments, or interpretations required under subsection (a) before the date specified in such subsection— (1) a covered entity may deliver regulatory documents using electronic delivery in accordance with subsection (b)