2023 Washington Code 8.26.180 – Acquisition procedures

2022 Washington Code 8.26.180 – Acquisition procedures

2020 Washington Code 8.26.180 – Acquisition procedures

2019 Washington Code 8.26.180 – Acquisition procedures

2018 Washington Code 8.26.180 – Acquisition procedures

2016 Washington Code 8.26.180 – Acquisition procedures

2015 Washington Code 8.26.180 – Acquisition procedures

2014 Washington Code 8.26.180 – Acquisition procedures

2013 Washington Code 8.26.180 – Acquisition procedures

2009 Washington Code 8.26.180 – Acquisition procedures