Versions of See prior versions of a law on LawServer 2023 Washington Code 80.28.303 – Conservation service tariff — Contents of filing — Rate base — Duties of commission 2022 Washington Code 80.28.303 – Conservation service tariff–Contents of filing–Rate base–Duties of commission 2020 Washington Code 80.28.303 – Conservation service tariff — Contents of filing — Rate base — Duties of commission 2019 Washington Code 80.28.303 2018 Washington Code 80.28.303 – Conservation service tariff — Contents of filing — Rate base — Duties of commission 2016 Washington Code 80.28.303 – Conservation service tariff–Contents of filing–Rate base–Duties of commission 2015 Washington Code 80.28.303 – Conservation service tariff–Contents of filing–Rate base–Duties of commission 2014 Washington Code 80.28.303 – Conservation service tariff — Contents of filing — Rate base — Duties of commission 2013 Washington Code 80.28.303 – Conservation service tariff — Contents of filing — Rate base — Duties of commission 2009 Washington Code 80.28.303 – Conservation service tariff — Contents of filing — Rate base — Duties of commission