2023 Iowa Code 542B.17 – Engineer’s certificate

2022 Iowa Code 542B.17 – Engineer’s certificate.

2020 Iowa Code 542B.17 – Engineer’s certificate.

2018 Iowa Code 542B.17 – Engineer’s certificate.

2016 Iowa Code 542B.17 – Engineer

2014 Iowa Code 542B.17 – Engineer’s certificate.

2009 Iowa Code 542B.17 – Certificate