Maryland State Personnel and Pensions Section 6-402

      (a)      Except as otherwise provided by law, a position in the Executive Branch of State government is in the professional service if the position:

            (1)      requires knowledge of an advanced type in a field of science or learning customarily acquired by a course of specialized intellectual instruction and study; and

            (2)      normally requires a professional license, advanced degree, or both.

      (b)      The professional service includes any other position that is determined by the Secretary to be in the professional service.