The purpose of the 2008 Seattle Electrical code is to promote public safety in a practical manner from hazards arising from the use of electricity. Our code does not provide design specifications and is not intended as an installation instruction manual. It applies to all electrical wiring and equipment, including communications systems, installed or used within Seattle. Some ship, railway, communication equipment, and electrical utility installations are specifically exempted from the code; see section 80.3 for details.
You can now download the 2014 Seattle Electrical Code ordinance that has been approved by City Council and signed by Mayor Murray, and the summary of the key changes. Our new Electrical Code will be effective November 12, 2014. Please note that each adopted WAC rule is found within the new code. We hope this will simplify access to all Seattle requirements.
If your electrical work doesn't need plan review, it must fully comply with the new code beginning on November 12. If your project does need plan review, the version of the Electrical Code that applies to your project is determined by the application date of an underlying building permit. For questions, call the technical support at (206) 684-5383.
We are drafting the Electrical Code supplement and we'll post it as soon as it's available.