We encourage affected business owners and citizens to become familiar with our regulations. You may view and download our current regulations below, or to request a copy be mailed to you, call 206-343-8800 or 800-552-3565.
Our regulations are periodically updated. Articles and Sections marked with an asterisk (*) were revised recently and are effective as of November 1, 2023 and December 1, 2023. If you previously downloaded a set of regulations, you only need to download the recent updates.