Maryland Code, Education § 3-114

(a) In the following counties, the members of the county board shall be elected:

(b) In Baltimore City, in accordance with § 3-108.1 of this subtitle, the members of the Baltimore City Board of School Commissioners shall be a combination of members who are elected and appointed.

(c) In Baltimore County, in accordance with Subtitle 2A of this title, the members of the county board shall be a combination of members who are elected and appointed.

(d) In Caroline County, in accordance with Subtitle 3A of this title, the members of the county board shall be a combination of members who are elected and appointed.

(e) In Harford County, in accordance with Subtitle 6A of this title, the members of the county board shall be a combination of members who are elected and appointed.

(f) An individual subject to the authority of the county board may not serve as a member of the county board. At the time of filing a certificate of candidacy for election to a county board, a person shall certify to the local board of supervisors of elections whether or not the person is subject to the authority of the county board. The Governor may not issue a commission of election to a person who has certified affirmatively and who is elected to a county board until the member-elect offers proof that the member-elect is no longer subject to the authority of the county board.

(g) The election of the county boards shall be held as provided in Subtitles 2 through 14 of this title and the Election Law Article.