Previously Adopted UCC Model Codes

Since the adoption of the Uniform Construction Code, NJAC 5:23, on January 1, 1977, many editions of select model codes have been referenced within the applicable subcode.  The following contains links and information on the previously adopted model codes.

2021/2020 codes

Prior to the adoption of the 2024/2023 codes August 17, 2026, please find the 2021/2020 codes below:

CODE (as adopted by NJAC 5:23)

Adoption Date 

BUILDING SUBCODE (NJAC 5:23-3.14)

International Building Code/2021, NJ ed  
 * Corrected pages (NJ errata)
 * Corrected sections (ICC errata)
Other referenced I-Codes (IFC/2021; ISPSC/2021; etc.)
Other referenced ICC Standards (ICC/ANSI A117.1-2017; ICC 300-2017; etc.)

Sept. 06, 2022

PLUMBING SUBCODE (NJAC 5:23-3.15)

National Standard Plumbing Code/2021, NJ ed
 * Corrected pages (NJ errata)
 * Corrected sections (NSPC errata)

Sept. 19, 2022

ELECTRICAL SUBCODE (NJAC 5:23-3.16)

National Electrical Code (NFPA 70)/2020
(link also provides access to all NFPA standards)
 * TIA 1 - 9 and 19

Sept. 06, 2022

ENERGY SUBCODE (NJAC 5:23-3.18)

International Energy Conservation Code/2021 (Low-Rise Residential)
ASHRAE 90.1-2019 (Commercial & all other Residential)


Sept. 06, 2022

MECHANICAL SUBCODE (NJAC 5:23-3.20)

International Mechanical Code/2021

Sept. 06, 2022

ONE- AND TWO-FAMILY DWELLING SUBCODE (NJAC 5:23-3.21)

International Residential Code/2021, NJ ed
 * Corected pages (NJ errata)
 * Corrected sections (ICC errata)
Other referenced I-Codes (ISPSC/2021; etc.)

Sept. 06, 2022

FUEL GAS SUBCODE  (NJAC 5:23-3.22)

International Fuel Gas Code/2021

Sept. 06, 2022

REHABILITATION SUBCODE  (NJAC 5:23-6)

NJUCC, Subchapter 6

Updated as Necessary
(current as of 03/06/23)

BARRIER FREE SUBCODE (Chapter 11 of IBC/2021 & NJAC 5:23-7)

ICC A117.1-2017


Sept. 06, 2022

ELEVATOR SUBCODE (NJAC 5:23-12)

American Society of Mechanical Engineers (ASME)
* See "ASME" within Chapter 35 of IBC/2021

Sept. 06, 2022

To purchase, please contact:

•  International Codes & ICC/ANSI A117.1 -- International Code Council
   (888) 422-7233

•  National Standard Plumbing Code -- National Assoc. of Plumbing-Heating-Cooling Contractors
   (800) 652-7422; director@nj-phcc.org

•  National Electrical Code -- National Fire Protection Assoc.
   (617) 770-3000

•  ASHRAE Std. 90.1 -- American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.
   (800) 527-4723

•  ASME -- American Society of Mechanical Engineers
   (800) 843-2763

2018/2017 codes

Prior to the adoption of the 2021/2020 codes in September 2022, please find the 2018/2017 codes below:

CODE (as adopted by NJAC 5:23)

Adoption Date 

BUILDING SUBCODE (NJAC 5:23-3.14)

International Building Code/2018, NJ ed (IBC w/ NJ edits from 3.14) 
 * Corrected pages (NJ errata)
 * Corrected sections (ICC errata)
Other referenced I-Codes (IFC/2018; ISPSC/2018; etc.)
Other referenced ICC Standards (ICC/ANSI A117.1-2009; ICC 300-2017; etc.)

Sept. 03, 2019

PLUMBING SUBCODE (NJAC 5:23-3.15)

National Standard Plumbing Code/2018, NJ ed (NSPC w/ NJ edits from 3.15)

Sept. 03, 2019

ELECTRICAL SUBCODE (NJAC 5:23-3.16)

National Electrical Code (NFPA 70)/2017
(link provides access to all NFPA standards)

Sept. 03, 2019 

ENERGY SUBCODE (NJAC 5:23-3.18)

International Energy Conservation Code/2018 (Low-Rise Residential)
ASHRAE 90.1-2016 (Commercial & all other Residential)


Sept. 03, 2019

MECHANICAL SUBCODE (NJAC 5:23-3.20)

International Mechanical Code/2018

Sept. 03, 2019

ONE- AND TWO-FAMILY DWELLING SUBCODE (NJAC 5:23-3.21)

International Residential Code/2018, NJ ed (IRC w/ NJ edits from 3.21)
 * Corrected pages (NJ errata)
 * Corrected sections (ICC errata)
Other referenced I-Codes (ISPSC/2018; etc.)

Sept. 03, 2019

FUEL GAS SUBCODE  (NJAC 5:23-3.22)

International Fuel Gas Code/2018

Sept. 03, 2019

REHABILITATION SUBCODE  (NJAC 5:23-6)

NJUCC, Subchapter 6

Updated as Necessary
(current as of 02/16/21)
2018 I-code update
included

BARRIER FREE SUBCODE (Chapter 11 of IBC/2018 & NJAC 5:23-7)

ICC/ANSI A117.1-2009


Sept. 03, 2019

ELEVATOR SUBCODE (NJAC 5:23-12)

American Society of Mechanical Engineers (ASME)

Sept. 03, 2019

To purchase, please contact:

•  International Codes & ICC/ANSI A117.1 -- International Code Council
   (888) 422-7233

•  National Standard Plumbing Code -- National Assoc. of Plumbing-Heating-Cooling Contractors
   (800) 533-7694 or in NJ at (800) 652-7422 or (609) 987-0500

•  National Electrical Code -- National Fire Protection Assoc.
   (617) 770-3000

•  ASHRAE Std. 90.1 -- American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.
   (800) 527-4723

•  ASME -- American Society of Mechanical Engineers
   (800) 843-2763

History since 1977

Grace Period

For a period of six months following the operative date of a subcode revision, applicants may submit a complete permit application, including all prior approvals, to be reviewed under the code in force immediately preceeding the subcode revision.  Provided that the application is complete, the construction official and applicable subcode officials shall perform the plan review and issue construction permit(s) based on the code in force immediately prior to the operative date of the subcode revision.  This grace period shall apply only to revisions of subcodes.

 
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