Codebook history

A history of the adopted codes and standards

Versions available online

2019 Oregon Structural Specialty Code - Effective Oct. 1, 2019

Chapter 1 amendments | April 1, 2021
Tsunami design standards, (HB 2605) amendments | Jan. 1, 2022
Child care facilities in dwellings amendments | Jan. 26, 2022
Issued Errata

2014 Oregon Structural Specialty Code - Effective July 1, 2014 - Jan. 1, 2020

Emergency responder radio coverage amendments | June 7, 2019
Aviation hangar fire suppression amendments | June 2019
Exit access doorways for equipment rooms with boilers amendments | October 2018
Reference to ASME B31.3 pressure piping repeal | August 2018
Appendix N - New construction provisions amendments | January 2018
Low-frequency smoke and CO alarms amendments | February 2016
Separate facilities, panic hardware, solar integration, etc. amendments | April 2015
Accessible parking spaces and sign design errata | November 2018
Dining and drinking areas errata | August 2015
Radon control methods errata | June 2015
Chapter 11 figures, etc. errata | October 2014

2010 Oregon Structural Specialty Code - Effective July 1, 2010 - Sept. 30, 2014

Adopted model code history

International Building Code (IBC)

2019 OSSC - 2018 IBC - Effective Oct. 1, 2019
2014 OSSC - 2012 IBC - Effective July 1, 2014
2010 OSSC - 2009 IBC - Effective July 1, 2010
2007 OSSC - 2006 IBC - Effective April 1, 2007
2004 OSSC - 2003 IBC - Effective Oct. 1, 2004

Uniform Building Code (UBC)

1998 OSSC - 1997 UBC - Effective Oct. 1, 1998
1996 OSSC - 1994 UBC - Effective April 1, 1996
1993 OSSC - 1991 UBC - Effective Jan. 1, 1993
1990 OSSC - 1988 UBC - Effective Jan. 1, 1990
1986 OSSC - 1985 UBC - Effective July 1, 1986
1983 OSSC - 1982 UBC - Effective Aug. 1, 1983
1980 OSSC - 1979 UBC - Effective July 1, 1980
1978 OSSC - 1976 UBC - Effective March 1, 1978
1974 OSSC - 1973 UBC - Effective July 1, 1974

Adopted model codes

NFPA 70, National Electrical Code (NEC)

2023 OESC / NEC - Effective Oct. 1, 2023 - Table 1-E amendments
2021 OESC / NEC - Effective April 1, 2021 - Table 1-E amendments
2017 OESC / NEC - Effective Oct. 1, 2017 - Table 1-E amendments
2014 OESC / NEC - Effective Oct. 1, 2014 - Table 1-E amendments
2011 OESC / NEC - Effective April 1, 2011 - Table 1-E amendments
2008 OESC / NEC - Effective April 1, 2008
2005 OESC / NEC - Effective April 1, 2005
2002 OESC / NEC - Effective Oct. 1, 2002
1999 OESC / NEC - Effective April 1, 2000
1996 OESC / NEC - Effective Oct. 1, 1996
1993 OESC / NEC - Effective July 1, 1993
1990 OESC / NEC - Effective July 1, 1990
1987 OESC / NEC - Effective May 1, 1987
1984 OESC / NEC - Effective July 1, 1984
1981 OESC / NEC - Effective Oct. 1, 1981
1978 OESC / NEC - Effective Jan. 1, 1978
1975 OESC / NEC - Effective July 1, 1975
1971 OESC / NEC - Effective May 1, 1972 (est.)
1968 OESC / NEC - Effective Jan. 1, 1969

Versions available online

2021 Oregon Energy Efficiency Specialty Code (OEESC) - Effective April 1, 2021, and mandatory Oct. 1, 2021

2019 Oregon Zero Energy Ready Commercial Code (OZERCC) - Effective Oct. 1, 2019 - Sept. 30, 2021

2014 Oregon Energy Efficiency Specialty Code (OEESC) - Effective July 1, 2014 - Dec. 31, 2019

Chapter 2 and Table 503 errata | May 2015

2010 Oregon Energy Efficiency Specialty Code (OEESC) - Effective July 1, 2010

Adopted model codes

ASHRAE Standard 90.1

2021 OEESC: ASHRAE Standard 90.1-2019 - Effective April 1, 2021
2019 OZERCC: Part I Commercial construction - ASHRAE Standard 90.1-2016 - Effective Oct. 1, 2019

International Energy Conservation Code (IECC)

2019 OZERCC: Part II Multi-family construction - 2018 (IECC) - Effective Oct. 1, 2019
2014 OEESC - 2009 (IECC) - Effective July 1, 2014
2010 OEESC - 2009 (IECC) - Effective July 1, 2010

Versions available online

2019 Oregon Mechanical Specialty Code (OMSC) - Effective Oct. 1, 2019
2014 Oregon Mechanical Specialty Code - Effective July 1, 2014 - Jan. 1, 2020

2010 Oregon Mechanical Specialty Code - Effective July 1, 2010 - June 30, 2014

Adopted model codes

International Mechanical Code (IMC)

2019 OMSC - 2018 IMC - Effective Oct. 1, 2019
2014 OMSC - 2012 IMC - Effective July 1, 2014
2010 OMSC - 2009 IMC - Effective July 1, 2010
2007 OMSC - 2006 IMC - Effective April 1, 2007
2004 OMSC - 2003 IMC - Effective Oct. 1, 2004
2002 OMSC - 2000 IMC - Effective Oct. 1, 2002
2000 OMSC - 1998 IMC - Effective Oct. 1, 1999

Uniform Mechanical Code (UMC)

1996 OMSC - 1994 UMC - Effective April 1, 1996
1993 OMSC - 1991 UMC - Effective Jan. 1, 1993
1990 OMSC - 1988 UMC - Effective Jan. 1, 1990
1986 OMSC - 1985 UMC - Effective May 1, 1986
1983 OMSC - 1982 UMC - Effective Aug. 1, 1983
1980 OMSC - 1979 UMC - Effective July 1, 1980
1978 OMSC - 1976 UMC - Effective March 1, 1978
1974 OMSC - 1973 UMC - Effective July 1, 1974

Versions available online

2017 Oregon Plumbing Specialty Code (OPSC) - Effective Oct. 1, 2017 - March 31, 2021

Barrier type floor drain trap seal protection devices | April 2018
Interim amendments to the 2017 OPSC | October 2020

2014 Oregon Plumbing Specialty Code (OPSC) - Effective Oct. 1, 2014 - Sept. 30, 2017

Summary of Oregon amendments | Oct. 1, 2014
OPSC errata - Issued November 2015
OPSC errata - Issued December 2014

2011 Oregon Plumbing Specialty Code (OPSC) - Effective April 1, 2011 - Sept. 30, 2014

Adopted model codes

Uniform Plumbing Code (UPC)

2021 OPSC - 2021 UPC - Effective April 1, 2021
2017 OPSC - 2015 UPC - Effective Oct. 1, 2017
2014 OPSC - 2009 UPC - Effective Oct. 1, 2014
2011 OPSC - 2009 UPC - Effective April 1, 2011
2008 OPSC - 2006 UPC - Effective April 1, 2008
2003 OPSC - 2003 UPC - Effective April 1, 2005
2000 OPSC - 1997 UPC - Effective April 1, 2000
1996 OPSC - 1994 UPC - Effective April 1, 1996
1992 OPSC - 1991 UPC - Effective Feb. 1, 1992
1990 OPSC - 1988 UPC - Effective Jan. 1, 1990
1987 OPSC - 1985 UPC - Effective Jan. 1, 1987
1984 OPSC - 1979 UPC - Effective Oct. 13, 1984
1981 OPSC - 1979 UPC - Effective July 1, 1981
1978 OPSC - 1976 UPC - Effective Jan. 1, 1978
1975 OPSC - 1973 UPC - Effective Feb. 1, 1975

Versions available online

2021 Oregon Residential Specialty Code (ORSC)

Chapter 1: Effective and mandatory April 1, 2021
Construction standards: Effective April 1, 2021, and Mandatory Oct. 1, 2021
Based on the 2018 International Residential Code (IRC)
Issued errata
Summary of significant changes to the ORSC

2017 Oregon Residential Specialty Code - Effective Oct. 1, 2017 - Sept. 30, 2021
2014 Oregon Residential Specialty Code - Effective Oct. 1, 2014 to Jan. 1, 2018

Gas pipe separation amendments - Effective Feb. 1, 2016
R325 and solar provision amendments - Effective April 1, 2015
ORSC adopted amendment insert pages - Effective Oct. 1, 2014

2011 Oregon Residential Specialty Code - Effective July 1, 2011 to Jan. 1, 2014

Errata - Issued November 2011
Appendix N amendments and errata - Issued July 2011

2008 Oregon Residential Specialty Code - Effective April 1, 2008 to Oct. 1, 2011

Adopted model codes

International Residential Code (IRC)

2021 ORSC - 2018 IRC - Effective Oct. 1, 2021
2017 ORSC - 2015 (IRC) - Effective Oct. 1, 2017
2014 ORSC - 2009 (IRC) - Effective Oct. 1, 2014
2011 ORSC - 2009 (IRC) - Effective July 1, 2011
2008 ORSC - 2006 (IRC) - Effective April 1, 2008
2005 ORSC - 2003 (IRC) - Effective April 1, 2005
2003 ORSC - 2000 (IRC) - Effective April 1, 2003

Council of American Building Officials (CABO)

1998 - (Int. 1 & 2) - Effective April 1, 2000
1995 CABO - Effective April 1, 1996
1992 CABO - Effective April 1, 1995
1992 CABO - Effective May 1, 1993
1989 CABO - Effective April 1, 1990
1986 CABO - Not adopted
1983 CABO - Effective May 1, 1986

Uniform Building Code (UBC)

Prior to May 1, 1986, provisions for residential structures were based on the Uniform Building Code (UBC).

1980 OSSC - 1979 UBC - Effective July 1, 1980
1978 OSSC - 1976 UBC - Effective March 1, 1978
1974 OSSC - 1973 UBC - Effective July 1, 1974

Codebook history

A history of the adopted codes and standards

Commercial structures

Electrical

Energy

Mechanical

Plumbing

Residential structures