Versions of Washington Code 69.50.587 - Cannabis science task force reports -- Board rules on LawServer 2023 Washington Code 69.50.587 – Cannabis science task force reports — Board rules 2022 Washington Code 69.50.587 – Cannabis science task force reports–Board rules 2020 Washington Code 69.50.587 – Cannabis science task force reports — Board rules 2019 Washington Code 69.50.587