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The division works with building officials, technical committees, advisory boards, and the public to adopt, amend, and interpret the Oregon Residential Specialty Code (ORSC). This code applies to the construction, reconstruction, and repair of one- and two-family dwellings and townhouses.
2023 Oregon Residential Specialty Code (ORSC) Administrative provisions (Chapter 1): Chapter 1 provisionsEffective and mandatory Oct. 1, 2023 Construction provisions (Chapters 2 - 44 and appendices):Effective Oct. 1, 2023 with *six-month phase-in period Mandatory April 1, 2024Based on 2021 International Residential Code (IRC) Adoption process for the 2023 ORSC Issued errata Emergency Escape and Rescue Opening - R310 amendmentsNEW Code update training and adoption resources
2023 Oregon Residential Specialty Code (ORSC)
Code update training and adoption resources
Available now on the Codebook history webpage
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The Small Home Specialty Code, established by ORS 455, requires that the 2018 International Residential Code, including but not limited to Appendix Q, be used for the design and construction of small homes. Statute defines a "small home" as a single-family residence that is not more than 400 square feet in size. For more information about small home construction standards see ORS 455, including 455.616.
For more information on building permit requirements, please contact your local building department .
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