Maryland State Personnel and Pensions Section 23-403
§ 23-403.
  (a)   This section applies to a former member who:
    (1)   was eligible for a retirement allowance under § 23-401 or § 23-402 of this subtitle when the former member's membership terminated;
    (2)   did not submit a written application under § 23-401 or § 23-402 of this subtitle before membership terminated; and
    (3)   has not withdrawn the former member's accumulated contributions, if any.
  (b)   (1)   A former member described in subsection (a) of this section may retire with a retirement allowance under § 23-401 or § 23-402 of this subtitle on the first day of the month after the Board of Trustees receives a written application for retirement from the former member.
    (2)   A former member who retires under this section may not receive benefits for the period before the former member submitted a completed application for retirement to the Board of Trustees.