2023 Washington Code 46.04.600 – Traffic control signal

2022 Washington Code 46.04.600 – Traffic control signal

2020 Washington Code 46.04.600 – Traffic control signal

2019 Washington Code 46.04.600 – Traffic control signal

2018 Washington Code 46.04.600 – Traffic control signal

2016 Washington Code 46.04.600 – Traffic control signal

2015 Washington Code 46.04.600 – Traffic control signal

2014 Washington Code 46.04.600 – Traffic control signal

2013 Washington Code 46.04.600 – Traffic control signal

2009 Washington Code 46.04.600 – Traffic control signal