Public employee bargaining units, created under the State Employees Collective Bargaining Act, must file any petition seeking to decertify an exclusive collective bargaining agent, under the Rules of the Nebraska Commission of Industrial Relations 9(II)(C)(1) (rev. 2015), during the period preceding the commencement of the statutorily required bargaining period in section 81-1379. Nebraska Protective Servs. Unit v. State, 299 Neb. 797, 910 N.W.2d 767 (2018).