Versions of Iowa Code 535D.12 - Nationwide mortgage licensing system and registry information -- challenge process on LawServer 2023 Iowa Code 535D.12 – Nationwide mortgage licensing system and registry information — challenge process 2022 Iowa Code 535D.12 – Nationwide mortgage licensing system and registry information — challenge process. 2020 Iowa Code 535D.12 – Nationwide mortgage licensing system and registry information — challenge process. 2018 Iowa Code 535D.12 – Nationwide mortgage licensing system and registry information — challenge process. 2016 Iowa Code 535D.12 – Nationwide mortgage licensing system and registry information 2014 Iowa Code 535D.12 – Nationwide mortgage licensing system and registry information – challenge process. 2009 Iowa Code 535D.12 – Nationwide mortgage licensing system and registry information — challenge process