2023 Washington Code 39.19.140 – Implementation of statewide certification

2022 Washington Code 39.19.140 – Implementation of statewide certification

2020 Washington Code 39.19.140 – Implementation of statewide certification

2019 Washington Code 39.19.140 – Implementation of statewide certification

2018 Washington Code 39.19.140 – Implementation of statewide certification

2016 Washington Code 39.19.140 – Implementation of statewide certification

2015 Washington Code 39.19.140 – Implementation of statewide certification

2014 Washington Code 39.19.140 – Implementation of statewide certification

2013 Washington Code 39.19.140 – Implementation of statewide certification

2009 Washington Code 39.19.140 – Implementation of statewide certification