Md. Code, Land Use § 9–702

(a) The planning commission consists of six regular members and one alternate member.

(b) (1) The term of a member of the planning commission is 3 years.

(2) The terms of the members of the planning commission shall be staggered.

(3) At the end of a term, an appointed member continues to serve until a successor is appointed and qualifies.

(4) An ex officio member serves a term concurrent with the member’s term of office.

(5) A member who is appointed after a term has begun serves only for the rest of the term and until a successor is appointed and qualifies.