2023 Washington Code 18.160.900 – Prospective application

2022 Washington Code 18.160.900 – Prospective application

2020 Washington Code 18.160.900 – Prospective application

2019 Washington Code 18.160.900 – Prospective application

2018 Washington Code 18.160.900 – Prospective application

2016 Washington Code 18.160.900 – Prospective application

2015 Washington Code 18.160.900 – Prospective application

2014 Washington Code 18.160.900 – Prospective application

2013 Washington Code 18.160.900 – Prospective application

2009 Washington Code 18.160.900 – Prospective application