Md. Code, State Personnel and Pensions § 31–111.4

(a) An individual who elects membership in the Employees’ Pension System under § 23–204(e) of this article and is an employee of the Town of Berwyn Heights on the effective date shall receive eligibility service and creditable service in the Employees’ Pension System equal to one–third of the individual’s period of employment with the Town of Berwyn Heights before the effective date, as certified by the Town of Berwyn Heights as of the effective date.

(b) If an employee or former employee of the Town of Berwyn Heights becomes a member of the Employees’ Pension System at any time after the effective date, the employee may not receive service credit for employment with the Town of Berwyn Heights before the effective date.