2023 Washington Code 17.24.031 – Determination of origin

2022 Washington Code 17.24.031 – Determination of origin

2020 Washington Code 17.24.031 – Determination of origin

2019 Washington Code 17.24.031 – Determination of origin

2018 Washington Code 17.24.031 – Determination of origin

2016 Washington Code 17.24.031 – Determination of origin

2015 Washington Code 17.24.031 – Determination of origin

2014 Washington Code 17.24.031 – Determination of origin

2013 Washington Code 17.24.031 – Determination of origin

2009 Washington Code 17.24.031 – Determination of origin