70A.19  Duration of state payroll deduction for dues of employee organization member.
  A state employee who elects a payroll deduction for membership dues to an employee organization pursuant to the provisions of a collective bargaining agreement negotiated under the provisions of chapter 20 shall maintain the deduction for a period of one year or until the expiration of the collective bargaining agreement, whichever occurs first. A state employee who transfers employment to a position covered by a different collective bargaining agreement or who becomes a management employee is not subject to this requirement. With respect to state employees, this section supersedes the provisions of section 20.9 allowing termination of a dues checkoff at any time but does not supersede the requirement for thirty days’ written notice of termination.
86 Acts, ch 1245, §234
C87, §79.19
C93, §70A.19