2023 Washington Code 72.74.060 – Contracts for implementation

2022 Washington Code 72.74.060 – Contracts for implementation

2020 Washington Code 72.74.060 – Contracts for implementation

2019 Washington Code 72.74.060

2018 Washington Code 72.74.060 – Contracts for implementation

2016 Washington Code 72.74.060 – Contracts for implementation

2015 Washington Code 72.74.060 – Contracts for implementation

2014 Washington Code 72.74.060 – Contracts for implementation

2013 Washington Code 72.74.060 – Contracts for implementation

2009 Washington Code 72.74.060 – Contracts for implementation