2023 Washington Code 47.36.020 – Traffic control signals

2022 Washington Code 47.36.020 – Traffic control signals

2020 Washington Code 47.36.020 – Traffic control signals

2019 Washington Code 47.36.020

2018 Washington Code 47.36.020 – Traffic control signals

2016 Washington Code 47.36.020 – Traffic control signals

2015 Washington Code 47.36.020 – Traffic control signals

2014 Washington Code 47.36.020 – Traffic control signals

2013 Washington Code 47.36.020 – Traffic control signals

2009 Washington Code 47.36.020 – Traffic control signals