Washington
Updated 3/15/2025
Overview
Washington enforces statewide building codes through the Washington State Building Code
Council (SBCC). While the state sets minimum standards, local jurisdictions may
implement additional requirements or amendments, so it is advisable to consult with local
building departments for any local variations.
The Washington Administrative Code (WAC) outlines specific rules regarding amendments and enforcement, and the Washington State Department of Labor & Industries (L&I) manages electrical rules and amendments.
The Washington Administrative Code (WAC) outlines specific rules regarding amendments and enforcement, and the Washington State Department of Labor & Industries (L&I) manages electrical rules and amendments.
CodePro Uses the Following Codes for Answers:
- 2021 International Residential Code (IRC) + Washington Amendments
- 2021 Uniform Plumbing Code (UPC) + Washington Amendments
- 2023 National Electrical Code (NEC) + Washington Amendments
Additional Resources:
Washington State Building Code Council (SBCC) – Governs the adoption of statewide
codes and their amendments.
Washington Administrative Code (WAC) – Specific rules and access all amendments.
Washington State Department of Labor & Industries (L&I) – Manages electrical rules, including amendments.
Washington Administrative Code (WAC) – Specific rules and access all amendments.
Washington State Department of Labor & Industries (L&I) – Manages electrical rules, including amendments.
- Adoption Category
Hybrid
- Amendments
State & Local
Hybrid Adoption
A hybrid adoption system means codes can vary at state and local level. Many times the
state establishes a base code for building regulations and local jurisdictions then have the
authority to amend or adopt more stringent requirements. This allows flexibility for cities
and counties to tailor codes to their specific needs while maintaining a foundational
standard set at the state level.