2023 Washington Code 48.92.060 – Countersigning not required

2022 Washington Code 48.92.060 – Countersigning not required

2020 Washington Code 48.92.060 – Countersigning not required

2019 Washington Code 48.92.060

2018 Washington Code 48.92.060 – Countersigning not required

2016 Washington Code 48.92.060 – Countersigning not required

2015 Washington Code 48.92.060 – Countersigning not required

2014 Washington Code 48.92.060 – Countersigning not required

2013 Washington Code 48.92.060 – Countersigning not required

2009 Washington Code 48.92.060 – Countersigning not required