Md. Code, Environment § 9–624

(a) From among its sanitary commissioners, each sanitary commission shall elect a chairman who is the chief executive officer of the district.

(b) In Somerset County, from among the sanitary commissioners, the commission shall elect a vice chairman.

(c) Each sanitary commission shall appoint a secretary-treasurer.

(d) In a single county district, a sanitary commissioner may not hold any other office of the county.