2023 Washington Code 47.12.011 – Purchase options authorized

2022 Washington Code 47.12.011 – Purchase options authorized

2020 Washington Code 47.12.011 – Purchase options authorized

2019 Washington Code 47.12.011 – Purchase options authorized

2018 Washington Code 47.12.011 – Purchase options authorized

2016 Washington Code 47.12.011 – Purchase options authorized

2015 Washington Code 47.12.011 – Purchase options authorized

2014 Washington Code 47.12.011 – Purchase options authorized

2013 Washington Code 47.12.011 – Purchase options authorized

2009 Washington Code 47.12.011 – Purchase options authorized