Maryland Code, Election Law § 10-404

(1) be at least 14 years old;

(2) apply to the local board in the individual's county of residence;

(3) be available to work at least one full 4-hour shift on election day; and

(4) complete the required training before election day.

(1) engage in any partisan activity while working at a polling place; or

(2) handle or touch a marked ballot at any time.

(1) serve under the direct supervision of the chief election judges for the assigned polling place; and

(2) assist election judges with election day duties, as directed.