Md. Code, State Finance and Procurement § 11–304

(a) Any employee who is subject to a personnel action in violation of § 11-303 of this subtitle may institute a civil action in the county where:

(1) the alleged violation occurred;

(2) the employee resides; or

(3) the employer maintains its principal office in the State.

(b) The action shall be brought within 1 year after the alleged violation of § 11-303 of this subtitle occurred or within 1 year after the employee first became aware of the alleged violation of § 11-303 of this subtitle.