Code Information / County and State Sites
This page provides helpful links to code information for the State of Washington as well as National and International building codes. We also provide links to the Municipal Codes for each MyBuildingPermit jurisdiction.
Effective July 1, 2020, the State of Washington adopted the codes listed below. It is important that you are familiar with the codes prior to submitting an application in order to avoid unnecessary delays in processing your permit.
- 2018 I-Codes
- 2018 Washington State Energy Codes (WSEC)
- 2018 Washington State Energy Code - Commercial (WSEC)
- 2018 Washington State Energy Code - Residential (WSEC)
- 2018 Uniform Plumbing Code (UPC)
- Washington State Amendments to 2018 UPC
- 2018 National Fuel Gas Code (NFPA 54)
- 2017 Liquefied Petroleum Gas Code (NFPA 58)
- 2020 Washington Cities Electrical Code (Effective 10/29/2020)
- 2017 Washington Cities Electrical Code
- 2017 National Electrical Code (NFPA 70)
- 2018 Washington State-Wide Amendments
- 2018 International Swimming Pool and Spa Code (ISPSC)
- 2009 ICC A117.1 Accessible and Useable Buildings and Facilities
- International Code Council
- Washington Association of Building Officials
- International Association of Plumbing and Mechanical Officials
- National Fire Protection Association
- American National Standards Institute
- Sheet Metal and Air Conditioning Contractors National Association
- Washington State University Energy Program - Residential Energy Requirements
- Northwest Energy Efficiency Council - Non-Residential Energy Requirements<