Versions of Iowa Code 158.10 - Supervisors of barbers on LawServer 2023 Iowa Code 158.10 – Supervisors of barbers 2022 Iowa Code 158.10 – Supervisors of barbers 2020 Iowa Code 158.10 – Supervisors of barbers 2018 Iowa Code 158.10 – Supervisors of barbers 2016 Iowa Code 158.10 – Supervisors of barbers 2014 Iowa Code 158.10 – Supervisors of barbers. 2009 Iowa Code 158.10 – Supervisors of barbers