Maryland Code, Land Use § 16-312

(1) interfere with, intimidate, restrain, coerce, or discriminate against an employee in the exercise of the employee's rights under this subtitle;

(2) dominate, interfere with, or assist in the formation, administration, or existence of an employee organization or contribute financial or other support to an employee organization;

(3) encourage or discourage membership in an employee organization by discriminating against the employee through hiring, tenure, promotion or demotion, or any term or condition of employment;

(4) discharge or otherwise discriminate against an employee because the employee has signed or filed an affidavit, petition, or complaint or given any information or testimony under this subtitle;

(5) refuse to engage in collective bargaining in good faith with the exclusive representative of the bargaining unit as required by § 16-307(d)(2) of this subtitle; or

(6) fail to comply with any provision of this subtitle.