2023 Washington Code 1.12.060 – Certified mail — Use — Electronic return receipts authorized

2022 Washington Code 1.12.060 – Certified mail–Use–Electronic return receipts authorized

2020 Washington Code 1.12.060 – Certified mail — Use — Electronic return receipts authorized

2019 Washington Code 1.12.060 – Certified mail — Use — Electronic return receipts authorized

2018 Washington Code 1.12.060 – Certified mail — Use — Electronic return receipts authorized

2016 Washington Code 1.12.060 – Certified mail–Use–Electronic return receipts authorized

2015 Washington Code 1.12.060 – Certified mail–Use–Electronic return receipts authorized

2014 Washington Code 1.12.060 – Certified mail — Use — Electronic return receipts authorized

2013 Washington Code 1.12.060 – Certified mail — Use — Electronic return receipts authorized

2009 Washington Code 1.12.060 – Certified mail — Use