(a) This section applies to an action for injunctive relief or damages for: (1) A violation of a collective bargaining agreement covering an employee of the State or a political subdivision of the State; or (2) A breach by an exclusive representative of the duty of fair representation owed to an employee of the State or a political subdivision of the State. (b) An action subject to this section shall be commenced within 6 months after the later of: (1) The date on which the claim accrued; or (2) The date on which the complainant knew or should reasonably have known of the breach.
Maryland Legal Code