2023 Washington Code 46.04.200 – Hours of darkness

2022 Washington Code 46.04.200 – Hours of darkness

2020 Washington Code 46.04.200 – Hours of darkness

2019 Washington Code 46.04.200 – Hours of darkness

2018 Washington Code 46.04.200 – Hours of darkness

2016 Washington Code 46.04.200 – Hours of darkness

2015 Washington Code 46.04.200 – Hours of darkness

2014 Washington Code 46.04.200 – Hours of darkness

2013 Washington Code 46.04.200 – Hours of darkness

2009 Washington Code 46.04.200 – Hours of darkness