Versions of Iowa Code 261B.11B - Voluntary registration on LawServer 2023 Iowa Code 261B.11B – Voluntary registration 2022 Iowa Code 261B.11B – Voluntary registration 2020 Iowa Code 261B.11B – Voluntary registration 2018 Iowa Code 261B.11B – Voluntary registration 2016 Iowa Code 261B.11B – Voluntary registration