Md. Code, Public Utilities § 10–501

(a) A person may not transport, solicit for transport, or agree to transport any person or baggage in a motor vehicle for hire unless the operator of the motor vehicle is licensed by the Commission.

(b) A person who owns or is in charge of a motor vehicle may not allow the motor vehicle to be used in violation of this section, § 10–109, or § 10–209 of this title.