2023 Washington Code 48.18.020 – Power to contract

2022 Washington Code 48.18.020 – Power to contract

2020 Washington Code 48.18.020 – Power to contract

2019 Washington Code 48.18.020

2018 Washington Code 48.18.020 – Power to contract

2016 Washington Code 48.18.020 – Power to contract

2015 Washington Code 48.18.020 – Power to contract

2014 Washington Code 48.18.020 – Power to contract

2013 Washington Code 48.18.020 – Power to contract

2009 Washington Code 48.18.020 – Power to contract