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WA HB2151

WA HB2151
Adopting national standards for factory built housing and commercial structures.


summary

Introduced
01/12/2026
In Committee
02/20/2026
Crossed Over
02/11/2026
Passed
03/09/2026
Dead
Signed/Enacted/Adopted
03/09/2026

Introduced Session

2025-2026 Regular Session

Bill Summary

AN ACT Relating to adopting national standards for factory built 2 housing and commercial structures; amending RCW 43.22.455, 43.22.470, 3 and 43.22.480; and reenacting and amending RCW 43.22.450. 4

AI Summary

This bill updates Washington state law regarding factory-built housing and commercial structures, which are buildings or parts of buildings substantially assembled off-site before being installed at their final location. The key changes involve adopting national consensus standards, specifically those published by the International Code Council, Inc., for the planning, design, fabrication, assembly, inspection, and regulatory compliance of these structures. The bill also clarifies that the Department of Labor and Industries (the "Department") can approve qualified inspection agencies, which are independent entities that must be objective and competent, to perform inspections. Additionally, it exempts prefabricated enclosures for energy storage systems or electrical equipment owned and controlled by an electric utility from requiring Department approval, provided their access is limited to qualified personnel for maintenance and repair. The bill also amends existing references to building codes, now specifying the "international" building, plumbing, and mechanical codes, alongside the "uniform" plumbing code, to align with national standards.

Committee Categories

Business and Industry, Labor and Employment

Sponsors (14)

Last Action

Effective date 6/11/2026. (on 03/09/2026)

Bill Topics

Banking, Finance, and Domestic Commerce
  • ‐ Consumer Safety and Consumer Fraud
  • ‐ General Banking, Finance, and Domestic Commerce
Community Development and Housing Issues
  • ‐ General Housing and Community Development

bill text


bill summary

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bill summary

Document Type Source Location Created
State Bill Page https://app.leg.wa.gov/billsummary?BillNumber=2151&Year=2025&Initiative=false 12/16/2025
Final bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/2151-S%20HBR%20FBR%2026.pdf 04/20/2026
BillText https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/Session%20Laws/House/2151-S.SL.pdf 03/12/2026
BillText https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/House%20Passed%20Legislature/2151-S.PL.pdf 03/03/2026
Substitute House bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/2151-S%20HBR%20PL%2026.pdf 03/03/2026
Substitute Senate bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/2151-S%20SBR%20APS%2026.pdf 02/28/2026
Substitute Senate bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/Senate/2151-S%20SBR%20LC%20OC%2026.pdf 02/20/2026
Fiscal Note - 2151 SHB (Final) https://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=76990 02/18/2026
Substitute House bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/2151-S%20HBR%20APH%2026.pdf 02/11/2026
Fiscal Note - 2151 HB (Final) https://fnspublic.ofm.wa.gov/FNSPublicSearch/GetPDF?packageID=75422 02/03/2026
BillText https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/House%20Bills/2151-S.pdf 01/26/2026
House bill report https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/2151%20HBR%20LAWS%2026.pdf 01/26/2026
House bill analysis 2026 https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bill%20Reports/House/2151%20HBA%20LAWS%2026.pdf 01/19/2026
BillText https://lawfilesext.leg.wa.gov/biennium/2025-26/Pdf/Bills/House%20Bills/2151.pdf 12/16/2025
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