2024 Iowa Code 537B.3 – Required trade practices

2023 Iowa Code 537B.3 – Required trade practices

2022 Iowa Code 537B.3 – Required trade practices

2020 Iowa Code 537B.3 – Required trade practices

2018 Iowa Code 537B.3 – Required trade practices

2016 Iowa Code 537B.3 – Required trade practices

2014 Iowa Code 537B.3 – Required trade practices.

2009 Iowa Code 537B.3 – Required trade practices