Versions of See prior versions of a law on LawServer 2023 Washington Code 48.76.060 – Requirements when specified methods of minimum values determination unfeasible 2022 Washington Code 48.76.060 – Requirements when specified methods of minimum values determination unfeasible 2020 Washington Code 48.76.060 – Requirements when specified methods of minimum values determination unfeasible 2019 Washington Code 48.76.060 2018 Washington Code 48.76.060 – Requirements when specified methods of minimum values determination unfeasible 2016 Washington Code 48.76.060 – Requirements when specified methods of minimum values determination unfeasible 2015 Washington Code 48.76.060 – Requirements when specified methods of minimum values determination unfeasible 2014 Washington Code 48.76.060 – Requirements when specified methods of minimum values determination unfeasible 2013 Washington Code 48.76.060 – Requirements when specified methods of minimum values determination unfeasible 2009 Washington Code 48.76.060 – Requirements when specified methods of minimum values determination unfeasible