2023 Washington Code 35.21.870 – Electricity, telephone, natural gas, or steam energy business — Tax limited to six percent — Exception

2022 Washington Code 35.21.870 – Electricity, telephone, natural gas, or steam energy business–Tax limited to six percent–Exception

2020 Washington Code 35.21.870 – Electricity, telephone, natural gas, or steam energy business — Tax limited to six percent — Exception

2019 Washington Code 35.21.870 – Electricity, telephone, natural gas, or steam energy business — Tax limited to six percent — Exception

2018 Washington Code 35.21.870 – Electricity, telephone, natural gas, or steam energy business — Tax limited to six percent — Exception

2016 Washington Code 35.21.870 – Electricity, telephone, natural gas, or steam energy business–Tax limited to six percent–Exception

2015 Washington Code 35.21.870 – Electricity, telephone, natural gas, or steam energy business–Tax limited to six percent–Exception

2014 Washington Code 35.21.870 – Electricity, telephone, natural gas, or steam energy business — Tax limited to six percent — Exception

2013 Washington Code 35.21.870 – Electricity, telephone, natural gas, or steam energy business — Tax limited to six percent — Exception

2009 Washington Code 35.21.870 – Electricity, telephone, natural gas, or steam energy business — Tax limited to six percent — Exception