(a) The Board shall furnish to any participant or beneficiary who so requests in writing a statement indicating, on the basis of the latest available information:
(1) The total benefits accrued; and
(2) The nonforfeitable retirement benefits, if any, which have accrued, or the earliest date on which benefits will become nonforfeitable.
(b) A participant or beneficiary is not entitled to receive more than 1 report under subsection (a) of this section during any 12-month period.