2023 Washington Code 15.44.130 – Research, advertising, educational campaign — Increase or decrease of assessments — Procedure

2022 Washington Code 15.44.130 – Research, advertising, educational campaign–Increase or decrease of assessments–Procedure

2020 Washington Code 15.44.130 – Research, advertising, educational campaign — Increase or decrease of assessments — Procedure

2019 Washington Code 15.44.130 – Research, advertising, educational campaign — Increase or decrease of assessments — Procedure

2018 Washington Code 15.44.130 – Research, advertising, educational campaign — Increase or decrease of assessments — Procedure

2016 Washington Code 15.44.130 – Research, advertising, educational campaign–Increase or decrease of assessments–Procedure

2015 Washington Code 15.44.130 – Research, advertising, educational campaign–Increase or decrease of assessments–Procedure

2014 Washington Code 15.44.130 – Research, advertising, educational campaign — Increase or decrease of assessments — Procedure

2013 Washington Code 15.44.130 – Research, advertising, educational campaign — Increase or decrease of assessments — Procedure

2009 Washington Code 15.44.130 – Research, advertising, educational campaign — Increase or decrease of assessments — Procedure