2023 Washington Code 18.51.240 – Alterations or additions — Preliminary inspection and approval

2022 Washington Code 18.51.240 – Alterations or additions–Preliminary inspection and approval

2020 Washington Code 18.51.240 – Alterations or additions — Preliminary inspection and approval

2019 Washington Code 18.51.240 – Alterations or additions — Preliminary inspection and approval

2018 Washington Code 18.51.240 – Alterations or additions — Preliminary inspection and approval

2016 Washington Code 18.51.240 – Alterations or additions–Preliminary inspection and approval

2015 Washington Code 18.51.240 – Alterations or additions–Preliminary inspection and approval

2014 Washington Code 18.51.240 – Alterations or additions — Preliminary inspection and approval

2013 Washington Code 18.51.240 – Alterations or additions — Preliminary inspection and approval

2009 Washington Code 18.51.240 – Alterations or additions — Preliminary inspection and approval