2023 Washington Code 54.04.170 – Collective bargaining authorized for employees

2022 Washington Code 54.04.170 – Collective bargaining authorized for employees

2020 Washington Code 54.04.170 – Collective bargaining authorized for employees

2019 Washington Code 54.04.170

2018 Washington Code 54.04.170 – Collective bargaining authorized for employees

2016 Washington Code 54.04.170 – Collective bargaining authorized for employees

2015 Washington Code 54.04.170 – Collective bargaining authorized for employees

2014 Washington Code 54.04.170 – Collective bargaining authorized for employees

2013 Washington Code 54.04.170 – Collective bargaining authorized for employees

2009 Washington Code 54.04.170 – Collective bargaining authorized for employees