Codes and Standards
Adopted Codes and Standards
2022 Oregon Structural Specialty Code (OSSC)
- Effective: Oct. 1, 2022 with a *6-month phase-in period
- Mandatory: April 1, 2023
- Based on the 2021 International Building Code (IBC) and International Existing Building Code (IEBC)
- Summary of amendments to the base model codes
2022 Oregon Mechanical Specialty Code (OMSC)
- Effective: Oct. 1, 2022 with a *6-month phase-in period
- Mandatory: April 1, 2023
- Summary of amendments to the base model codes
2021 Oregon Energy Efficiency Specialty Code (OEESC)
- Effective April 1, 2021, with a six-month phase-in period
- Mandatory Oct. 1, 2021
- Construction standards: ASHRAE Standard 90.1-2019
2023 Oregon Residential Specialty Code (ORSC)
- Chapter 1: Effective and mandatory October 1, 2023
- Construction standards: Effective October 1, 2023, and Mandatory April 1, 2024
- Based on the 2021 International Residential Code (IRC)
- Summary of significant changes to the ORSC
2023 Oregon Electrical Specialty Code (OESC)
- Effective October 1, 2023
- Based on the 2023 National Electircal Code (NEC)
- Oregon amendments to the 2023 NEC
2023 Oregon Plumbing Specialty Code (OPSC)
- Effective October 1, 2023
- Based on the 2021 OPSC and 2021 Uniform Plumbing Code (UPC)
2010 Oregon Manufactured Dwelling Installation Specialty Code (OMDISC)
- Effective April 1, 2010
2002 Oregon Manufactured Dwelling and Parks Specialty Code (OMD&P)
- Includes amendments effective April 1, 2005
