An official website of the State of Oregon Learn How you know » (how to identify a Oregon.gov website) An official website of the State of Oregon »
You are here:
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) Issued errata NEW Adoption process for the 2023 ORSC*During the phase-in period, use of the 2021 ORSC or the 2023 ORSC is permitted. Code update training and adoption resources
2023 Oregon Residential Specialty Code (ORSC)
*During the phase-in period, use of the 2021 ORSC or the 2023 ORSC is permitted.
Code update training and adoption resources
2021 Oregon Residential Specialty Code (ORSC)Effective April 1, 2021Based on the 2018 International Residential Code Summary of significant changes Residential energy code training and compliance resources Issued errata
2021 Oregon Residential Specialty Code (ORSC)
Learn more about...
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 .
A .gov website belongs to an official government organization in the United States.
A lock icon ( ) or https:// means you’ve safely connected to the .gov website.
Your browser is out-of-date! It has known security flaws and may not display all features of this and other websites. Learn how
×