Md. Code, State Personnel and Pensions § 24–207

Membership ends if the member:

(1) is separated from employment for more than 4 years;

(2) withdraws the member’s accumulated contributions;

(3) becomes a retiree;

(4) dies; or

(5) elects to participate in the Deferred Retirement Option Program established under § 24-401.1 of this title.