Maryland Code, Transportation § 6-204.1

(1) Upon its own terms and conditions determine an appropriate operational unit of employees involved in the operation of port facilities for purposes of collective bargaining;

(2) Upon its own terms and conditions accredit and recognize a labor organization as the exclusive representative of a majority of employees employed in the appropriate operational unit as determined under item (1) of this section; and

(3) Bargain with and enter into written collective bargaining agreements concerning wages or salaries, hours, benefits, and working conditions with the labor organization accredited and recognized under item (2) of this section.