2023 Washington Code 42.17A.450 – Attribution and aggregation of family contributions

2022 Washington Code 42.17A.450 – Attribution and aggregation of family contributions

2020 Washington Code 42.17A.450 – Attribution and aggregation of family contributions

2019 Washington Code 42.17A.450 – Attribution and aggregation of family contributions

2018 Washington Code 42.17A.450 – Attribution and aggregation of family contributions

2016 Washington Code 42.17A.450 – Attribution and aggregation of family contributions

2015 Washington Code 42.17A.450 – Attribution and aggregation of family contributions

2014 Washington Code 42.17A.450 – Attribution and aggregation of family contributions

2013 Washington Code 42.17A.450 – Attribution and aggregation of family contributions