Versions of See prior versions of a law on LawServer 2023 Washington Code 38.52.420 – Model contingency plan for pollution control facilities and hazardous waste management 2022 Washington Code 38.52.420 – Model contingency plan for pollution control facilities and hazardous waste management 2020 Washington Code 38.52.420 – Model contingency plan for pollution control facilities and hazardous waste management 2019 Washington Code 38.52.420 – Model contingency plan for pollution control facilities and hazardous waste management 2018 Washington Code 38.52.420 – Model contingency plan for pollution control facilities and hazardous waste management 2016 Washington Code 38.52.420 – Model contingency plan for pollution control facilities and hazardous waste management 2015 Washington Code 38.52.420 – Model contingency plan for pollution control facilities and hazardous waste management 2014 Washington Code 38.52.420 – Model contingency plan for pollution control facilities and hazardous waste management 2013 Washington Code 38.52.420 – Model contingency plan for pollution control facilities and hazardous waste management 2009 Washington Code 38.52.420 – Model contingency plan for pollution control facilities and hazardous waste management