Versions of See prior versions of a law on LawServer 2023 Washington Code 21.30.020 – Transactions involving commodity contract or option — Prohibition — Exceptions 2022 Washington Code 21.30.020 – Transactions involving commodity contract or option–Prohibition–Exceptions 2020 Washington Code 21.30.020 – Transactions involving commodity contract or option — Prohibition — Exceptions 2019 Washington Code 21.30.020 – Transactions involving commodity contract or option — Prohibition — Exceptions 2018 Washington Code 21.30.020 – Transactions involving commodity contract or option — Prohibition — Exceptions 2016 Washington Code 21.30.020 – Transactions involving commodity contract or option–Prohibition–Exceptions 2015 Washington Code 21.30.020 – Transactions involving commodity contract or option–Prohibition–Exceptions 2014 Washington Code 21.30.020 – Transactions involving commodity contract or option — Prohibition — Exceptions 2013 Washington Code 21.30.020 – Transactions involving commodity contract or option — Prohibition — Exceptions 2009 Washington Code 21.30.020 – Transactions involving commodity contract or option — Prohibition — Exceptions