2024 Iowa Code 477C.4 – Telecommunications devices for the deaf and hard of hearing

2023 Iowa Code 477C.4 – Telecommunications devices for the deaf and hard of hearing

2022 Iowa Code 477C.4 – Telecommunications devices for the deaf and hard of hearing

2020 Iowa Code 477C.4 – Telecommunications devices for the deaf

2018 Iowa Code 477C.4 – Telecommunications devices for the deaf

2016 Iowa Code 477C.4 – Telecommunications devices for the deaf

2014 Iowa Code 477C.4 – Telecommunications devices for the deaf.

2009 Iowa Code 477C.4 – Telecommunications devices for the deaf