This section applies to an action for injunctive relief or damages for: A violation of a collective bargaining agreement covering an employee of the State or a political subdivision of the State; or 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. An action subject to this section shall be commenced within 6 months after the later of: The date on which the claim accrued; or The date on which the complainant knew or should reasonably have known of the breach.