History of the Connecticut State Building Code

Overview

The table below lists all of the Connecticut State Building Codes since the first in 1971 to the present day code. For more information, please contact the Office of the State Building Inspector.

EFFECTIVE DATE	TITLE OF CODE IN EFFECT	MODEL CODES BASIS
9/1/71 to 8/31/81	1971 State of Connecticut Building Code	BOCA Basic Building Code/ 1970 as amended on various dates National Plumbing Code ASA A40.8 -1955 National Electrical Code: NFPA 70 - 1971 as of 4/1974 NFPA 70 - 1975 as of 11/10/77 ANSI A117.1 - 1961
9/1/81 to 4/14/87	1978 State of Connecticut Basic Building Code	BOCA Basic Building Code/ 1978 as amended BOCA Basic Mechanical Code/ 1978 BOCA Basic Plumbing Code/ 1978 National Electrical Code NFPA 70 - 1978 ANSI A117.1 - 1961 (Revised 1971)
4/15/87 to 10/15/89	1987 State Building Code	BOCA Basic/National Building Code/ 1984 BOCA Basic/National Mechanical Code/ 1984 BOCA Basic/National Plumbing Code/ 1984 CABO One and Two Family Dwelling Code/ 1986 National Electrical Code NFPA 70 - 1987 ANSI A117.1 - 1961 (Revised 1971) BOCA 1986 Accumulative Supplement April 15, 1987 Connecticut Supplement
10/16/89 to 6/14/94	1989 State Building Code	BOCA National Building Code/ 1987 BOCA National Mechanical Code/ 1987 BOCA National Plumbing Code/ 1987 CABO One and Two Family Dwelling Code/ 1986 National Electrical Code/ NFPA 70 - 1987 ANSI A117.1 - 1986 BOCA 1988 Accumulative Supplement October 16, 1989 Connecticut Supplement
6/15/94 to 4/30/99	1994 State Building Code	BOCA National Building Code/ 1990 BOCA National Mechanical Code/ 1990 BOCA National Plumbing Code/ 1990 CABO One and Two Family Dwelling Code/ 1989 National Electrical Code/ NFPA 70 - 1993 CABO/ANSI A117.1 - 1992 BOCA 1992 Accumulative Supplement June 15, 1994 Connecticut Supplement
5/1/99 to 12/30/05	1999 State Building Code with 2000 Amendment 2004 Amendment	BOCA National Building Code/ 1996 1996 International Mechanical Code 1997 International Plumbing Code CABO One and Two Family Dwelling Code/ 1995 2003 International Residential Code 2003 International Energy Conservation Code 2002 National Electrical Code – NFPA 70-2002 ICC/ANSI A117.1 – 1998 May 1, 1999 Connecticut Supplement April 7, 2000 – 2000 Amendment September 1, 2004 – 2004 Amendment The 2000 and 2004 Amendments to the 1999 State Building Code adopted the 2003 International Residential Code, 2003 International Energy Conservation Code, and 2002 National Electrical Code – NFPA 70-2002.
12/31/05 to 9/30/16	2005 State Building Code with 2009 Amendments 2011 Amendments 2013 Amendments	2003 International Building Code 2003 International Residential Code 2003 International Existing Building Code 2003 International Mechanical Code 2003 International Plumbing Code 2005 National Electrical Code NFPA 70-2005 2006 International Energy Conservation Code 2009 International Energy Conservation Code 2009 International Residential Code 2011 National Electrical Code ICC/ANSI A117.1-2003 December 31, 2005 Connecticut Supplement August 1, 2009 - 2009 Amendment October 7, 2011 - 2011 Amendment February 28, 2014 - 2013 Amendment The 2009 Amendments to the 2005 State Building Code adopted the 2006 International Energy Conservation Code. The 2011 Amendment to the 2005 State Building Code adopted the 2009 International Energy Conservation Code. *The 2013 Amendment to the 2005 State Building Code adopted the 2009 International Residential Code and the 2011 National Electrical Code.
10/1/16 to 9/30/18	2016 State Building Code	2012 International Building Code 2012 International Residential Code 2012 International Existing Building Code 2012 International Mechanical Code 2012 International Plumbing Code 2012 International Energy Conservation Code 2014 National Electrical Code NFPA 70-2014 ICC A117.1-2009 October 1, 2016 Connecticut amendments
10/1/18 to 9/30/22	2018 State Building Code	2015 International Building Code 2015 International Residential Code 2015 International Existing Building Code 2015 International Mechanical Code 2015 International Plumbing Code 2015 International Energy Conservation Code 2017 National Electrical Code NFPA 70-2014 ICC A117.1-2009 October 1, 2018 Connecticut amendments
10/1/22 (currently in effect)	2022 State Building Code	2021 International Building Code 2021 International Residential Code 2021 International Existing Building Code 2021 International Mechanical Code 2021 International Plumbing Code 2021 International Energy Conservation Code 2021 International Swimming Pool and Spa Code 2020 National Electrical Code NFPA 70-2014 ICC A117.1-2017

EFFECTIVE DATE	TITLE OF CODE IN EFFECT	MODEL CODE BASIS
9/1/71 to 8/31/81	1971 State of Connecticut Building Code	BOCA Basic Building Code/ 1970 as amended on various dates National Plumbing Code ASA A40.8 -1955 National Electrical Code NFPA 70 - 1971 as of 4/1974 NFPA 70 - 1975 as of 11/10/77 ANSI A117.1 - 1961
9/1/81 to 4/14/87	1978 State of Connecticut Basic Building Code	BOCA Basic Building Code/ 1978 as amended BOCA Basic Mechanical Code/ 1978 BOCA Basic Plumbing Code/ 1978 National Electrical Code NFPA 70 - 1978 ANSI A117.1 - 1961 (Revised 1971)
4/15/87 to 10/15/89	1987 State Building Code	BOCA Basic/National Building Code/ 1984 BOCA Basic/National Mechanical Code/ 1984 BOCA Basic/National Plumbing Code/ 1984 CABO One and Two Family Dwelling Code/ 1986 National Electrical Code NFPA 70 - 1987 ANSI A117.1 - 1961 (Revised 1971) BOCA 1986 Accumulative Supplement April 15, 1987 Connecticut Supplement
10/16/89 to 6/14/94	1989 State Building Code	BOCA National Building Code/ 1987 BOCA National Mechanical Code/ 1987 BOCA National Plumbing Code/ 1987 CABO One and Two Family Dwelling Code/ 1986 National Electrical Code/ NFPA 70 - 1987 ANSI A117.1 - 1986 BOCA 1988 Accumulative Supplement October 16, 1989 Connecticut Supplement
6/15/94 to 4/30/99	1994 State Building Code	BOCA National Building Code/ 1990 BOCA National Mechanical Code/ 1990 BOCA National Plumbing Code/ 1990 CABO One and Two Family Dwelling Code/ 1989 National Electrical Code/ NFPA 70 - 1993 CABO/ANSI A117.1 - 1992 BOCA 1992 Accumulative Supplement June 15, 1994 Connecticut Supplement
5/1/99 to 12/30/05	1999 State Building Code with 2000 Amendment 2004 Amendment	BOCA National Building Code/ 1996 1996 International Mechanical Code 1997 International Plumbing Code CABO One and Two Family Dwelling Code/ 1995 2003 International Residential Code 2003 International Energy Conservation Code 2002 National Electrical Code – NFPA 70-2002 ICC/ANSI A117.1 – 1998 May 1, 1999 Connecticut Supplement April 7, 2000 – 2000 Amendment September 1, 2004 – 2004 Amendment The 2000 and 2004 Amendments to the 1999 State Building Code adopted the 2003 International Residential Code, 2003 International Energy Conservation Code, and 2002 National Electrical Code – NFPA 70-2002.
12/31/05 to 9/30/16	2005 State Building Code with 2009 Amendments 2011 Amendments 2013 Amendments	2003 International Building Code 2003 International Residential Code 2003 International Existing Building Code 2003 International Mechanical Code 2003 International Plumbing Code 2005 National Electrical Code NFPA 70-2005 2006 International Energy Conservation Code 2009 International Energy Conservation Code 2009 International Residential Code 2011 National Electrical Code ICC/ANSI A117.1-2003 December 31, 2005 Connecticut Supplement August 1, 2009 - 2009 Amendment October 7, 2011 - 2011 Amendment February 28, 2014 - 2013 Amendment The 2009 Amendments to the 2005 State Building Code adopted the 2006 International Energy Conservation Code. The 2011 Amendment to the 2005 State Building Code adopted the 2009 International Energy Conservation Code. *The 2013 Amendment to the 2005 State Building Code adopted the 2009 International Residential Code and the 2011 National Electrical Code.
10/1/16 to 9/30/18	2016 State Building Code	2012 International Building Code 2012 International Residential Code 2012 International Existing Building Code 2012 International Mechanical Code 2012 International Plumbing Code 2012 International Energy Conservation Code 2014 National Electrical Code NFPA 70-2014 ICC A117.1-2009 October 1, 2016 Connecticut amendments
10/1/18 to 9/30/22	2018 State Building Code	2015 International Building Code 2015 International Residential Code 2015 International Existing Building Code 2015 International Mechanical Code 2015 International Plumbing Code 2015 International Energy Conservation Code 2017 National Electrical Code NFPA 70-2014 ICC A117.1-2009 October 1, 2018 Connecticut amendments
10/1/22 (currently in effect)	2022 State Building Code	2021 International Building Code 2021 International Residential Code 2021 International Existing Building Code 2021 International Mechanical Code 2021 International Plumbing Code 2021 International Energy Conservation Code 2021 International Swimming Pool and Spa Code 2020 National Electrical Code NFPA 70-2014 ICC A117.1-2017