2023 Washington Code 28A.545.080 – Estimated amount due paid in May and November installments

2022 Washington Code 28A.545.080 – Estimated amount due paid in May and November installments

2020 Washington Code 28A.545.080 – Estimated amount due paid in May and November installments

2019 Washington Code 28A.545.080 – Estimated amount due paid in May and November installments

2018 Washington Code 28A.545.080 – Estimated amount due paid in May and November installments

2016 Washington Code 28A.545.080 – Estimated amount due paid in May and November installments

2015 Washington Code 28A.545.080 – Estimated amount due paid in May and November installments

2014 Washington Code 28A.545.080 – Estimated amount due paid in May and November installments

2013 Washington Code 28A.545.080 – Estimated amount due paid in May and November installments

2009 Washington Code 28A.545.080 – Estimated amount due paid in May and November installments