Helpful Links
Oregon Design Criteria Hub:
The Oregon Design Criteria Hub is an interactive mapping tool that provides site-specific climatic and geographic design criteria for construction projects governed by the Oregon Residential Specialty Code (ORSC).
This includes all of the following criteria:
- Ground snow load
- Basic design wind speed
- Seismic Design Category
- Weathering potential
- Frost line depth
- Decay potential
- Air freezing index
The tool is being developed by Oregon State University’s (OSU) Oregon Explorer Program, which is a collaboration among OSU Libraries and Press (OSULP) and the Institute for Natural Resources (INR) at OSU. View the info sheet.
Oregon Building Code Websites
Commercial structures
- 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
- Interim amendments | Design wind speeds in special wind regions - Effective Oct. 1, 2023
- Issued errata
Energy efficiency
- Effective Jan. 1, 2025 with a *6-month phase-in period / Mandatory July 1, 2025
- Construction standards: ASHRAE Standard 90.1-2022Read-only version of ASHRAE Standard 90.1-2022
- Effective April 1, 2021 through June 30, 2025
- Construction standards: ASHRAE Standard 90.1-2019Read-only version of ASHRAE Standard 90.1-2019
- Errata to Standard 90.1-2019
Residential structures
- Administrative provisions (Chapter 1) ~ Effective and mandatory Oct. 1, 2023
- Construction provisions (Chapters 2 - 44 and appendices) ~ Effective Oct. 1, 2023 and mandatory April 1, 2024
- Based on 2021 International Residential Code (IRC)
- Summary of amendments and changes
- Issued Errata
Electrical
2023 Oregon Electrical Specialty Code (OESC)
- Effective Oct. 1, 2023
- Based on the 2023 National Electrical Code (NEC)
- Table of amendments to the 2023 NEC
An integrated codebook is not available, the table of amendments is designed to be used with the 2023 NEC.
Mechanical
- Effective: Oct. 1, 2022 with a *6-month phase-in period
- Mandatory: April. 1, 2023
- Summary of amendments to the base model codes
Plumbing
- Effective Oct. 1, 2023
- Based on the 2021 OPSC and 2021 Uniform Plumbing Code (UPC)
Manufactured Dwelling Installation
- Effective April 1, 2010
Parks
- (includes amendments effective April 1, 2005)
Industry Website Links
A convenient list of resources for you.
Industry Websites
Oregon Industry Sites
- Oregon Building Officials Association
- Oregon Permit Technicians Association
- Oregon Building Codes Division
- Oregon Home Builders Association
- Is your Oregon contractor licensed?
Other Industry Sites