Maryland Public Utility Companies Section 10-103

      (a)      Except as provided in subsection (b) of this section, a person may not operate a motor vehicle for hire in the State under a permit or authorization to transport passengers issued by the Commission or the appropriate local authority unless the person holds a for-hire driver's license issued by the Commission.

      (b)      (1)      A county or municipal corporation may license taxicab drivers who drive taxicabs that are based in that county or municipal corporation if, at a minimum, the county or municipal corporation conducts a criminal record check and driving record check of each applicant for a license.

            (2)      A taxicab driver licensed by a county or municipal corporation is not required to be licensed by the Commission.