Md. Code, State Personnel and Pensions § 2–601

(a) Except as provided for in subsection (c)(2) of this section, a former nontemporary State employee who returns to State employment in a position in the State Personnel Management System within 3 years from separation is reinstated.

(b) A reinstated State employee shall have unused accumulated sick leave restored.

(c) (1) A former nontemporary employee who is reinstated in a position in the State Personnel Management System shall receive credit for time employed before separation for the purpose of determining the employee's:

(i) step in the pay grade applicable to the employee's class;

(ii) rate of annual leave accrual; and

(iii) seniority rights.

(2) A former nontemporary State employee who returns to a position in an independent personnel system in accordance with the reinstatement provisions of that system shall receive benefits allowed by that personnel system.