2023 Iowa Code 411.35 – Statewide system established — city systems terminated

2022 Iowa Code 411.35 – Statewide system established — city systems terminated.

2020 Iowa Code 411.35 – Statewide system established — city systems terminated.

2018 Iowa Code 411.35 – Statewide system established — city systems terminated.

2016 Iowa Code 411.35 – Statewide system established

2014 Iowa Code 411.35 – Statewide system established – city systems terminated.

2009 Iowa Code 411.35 – Statewide system established — city systems terminated