; and (2) any document requested by such participant which the participant would be entitled to receive without regard to this section. (b) Unenrolled participant For purposes of this section, the term unenrolled participant means an employee who— (1) is eligible to participate in an individual account plan; (2) has received all required notices, disclosures, and other plan documents, including the summary plan description, required to be furnished under this title in connection with such participant’s initial eligibility to participate in such plan; (3) is not participating in such plan; and (4) does not have a balance in the plan. For purposes of this section, any eligibility to participate in the plan following any period for which such employee was not eligible to participate shall be treated as initial eligibility. (c) Annual reminder notice For purposes of this section, the term annual reminder notice means a notice provided in accordance with section 2520.104b–1 of title 29, Code of Federal Regulations (or any successor regulation), which— (1) is furnished in connection with the annual open season election period with respect to the plan or, if there is no such period, is furnished within a reasonable period prior to the beginning of each plan year; (2) notifies the unenrolled participant of— (A) the unenrolled participant’s eligibility to participate in the plan; and (B) the key benefits under the plan and the key rights and features under the plan affecting such benefits