Maryland State Personnel and Pensions Section 5-211

      (a)      An applicant or employee subject to this subtitle may file with the head of the principal unit a written complaint that alleges a violation of § 5-208 of this subtitle.

      (b)      A complaint under this subtitle must be filed within 30 days after the complainant first knew of or reasonably should have known of the alleged violation that is the basis for the complaint.