Md. Code, Election Law § 9–506

(a) Except as provided in subsection (b) of this section, a local board may commence the canvass of vote–by–mail ballots at 2 p.m. on the day of a special election.

(b) The State Board may adopt regulations authorizing a local board to commence the canvass of vote–by–mail ballots before the time specified in subsection (a) of this section.

(c) The State Board shall adopt regulations that provide for:

(1) public observation of the canvass of vote–by–mail ballots in accordance with § 11–301(a–1) of this article; and

(2) procedures for maintaining the secrecy of the election results until after 12 a.m. on the day after a special election.