2023 Washington Code 74.42.530 – Isolation areas

2022 Washington Code 74.42.530 – Isolation areas

2020 Washington Code 74.42.530 – Isolation areas

2019 Washington Code 74.42.530

2018 Washington Code 74.42.530 – Isolation areas

2016 Washington Code 74.42.530 – Isolation areas

2015 Washington Code 74.42.530 – Isolation areas

2014 Washington Code 74.42.530 – Isolation areas

2013 Washington Code 74.42.530 – Isolation areas

2009 Washington Code 74.42.530 – Isolation areas