Iowa Code § 357J.17
When the boundary lines of the district include all or a portion of a township and the district has certified a tax levy within the township for the purpose of fire protection service and emergency medical service, the township trustees shall no longer levy the tax provided by section 359.43 in that portion of the township provided services by the district. Any indebtedness incurred for the purposes of sections 359.42 through 359.45 for a service now provided by the district shall be assumed by the district. Such township shall not be responsible for providing fire protection service and emergency medical service as provided in section 359.42 for the portion of the township within the district, and shall have no liability for the method, manner, or means by which the district provides the fire protection service and emergency medical service.
Iowa Code § 357J.17
2008 Acts, ch 1152, §17