§9–504.

(a) A voter may return a vote–by–mail ballot to a local board: (1) by mail; (2) in person during regular office hours; (3) through a ballot drop box; or (4) through a duly authorized agent in accordance with subsection (b) of this section. (b) (1) A voter may designate a duly authorized agent in accordance with § 9–307 of this title to return a vote–by–mail ballot to a local board during regular office hours. (2) Notwithstanding § 9–307(b)(4)(i) of this title, an agent is required only to: (i) witness the voter mark the ballot and place it in an envelope; and (ii) return the ballot to a local board.