New Jersey Adopts 2024 National Standard Plumbing Code
The Division of Codes and Standards adopted the 2024 NSPC with state-specific amendments on Aug. 17.

Image Courtesy of IAPMO
New Jersey has officially adopted the 2024 New Jersey Edition of the National Standard Plumbing Code (NSPC) to serve as the plumbing code for the Garden State.
The Division of Codes and Standards, which is part of the state’s Department of Community Affairs, adopted the 2024 NSPC with state-specific amendments on Aug. 17.
The 2024 NSPC Illustrated New Jersey edition provides the latest information about common materials, fixtures, devices, and equipment systems used or installed in plumbing systems. The NSPC Illustrated New Jersey edition contains revisions that have been included to promote sustainable plumbing practices. This new edition is printed in the popular illustrated format, with comments and illustrations clearly shown as supplemental information. The illustrations and supplementary notes make it an indispensable training tool.
The 2024 NSPC Illustrated New Jersey edition contains:
- New provisions for all-gender toilet facilities, adult changing stations
- New standards for water closet compartments and urinal partitions
- New flow rates for pre-rinse spray valves
- Wet venting completely revised
- Air admittance valves moved to Chapter 12
- Appendix G, intended to promote safe and efficient water use in both residential and non-residential buildings, has been updated with revised excerpts from the 2020 Water Efficiency and Sanitation Standard (WE•Stand)
- IAPMO’s Water Demand Calculator included as a sizing option in Appendix G
- Updated standards in Chapter 18
“IAPMO is honored that New Jersey will continue to be served by our National Standard Plumbing Code,” IAPMO CEO Dave Viola said. “The NSPC has protected the health and safety of New Jersey's communities since 1977, and this 2024 edition brings the latest advances in affordability, sustainability, and modern materials to the state's plumbing systems. We remain committed to supporting New Jersey’s code officials and industry professionals with the resources and training they need to put this code into practice.”
Designed to ensure the proper installation of plumbing systems, the NSPC provides local and state governments, code administrative bodies and the industry with a modern code to protect public health, safety and welfare.
To keep the code current and viable with input from all interested parties, the NSPC Committee — comprised of licensed contractors, engineers, inspectors and manufacturers — reviews the code annually and updates it on a three-year cycle.
First published in 1973, the NSPC is designed to ensure the proper installation of plumbing systems, providing local and state governments, code administration bodies, and the industry with a modern code to protect health and promote safety.
Many industry stakeholders shared their thoughts on New Jersey’s adoption of the 2024 NSPC:
“The strength of the National Standard Plumbing Code is the people behind it,” said Thomas Pitcherello, New Jersey Department of Community Affairs, Code Assistance Unit (retired), chairman of NSPC Committee. “For more than 50 years, experienced plumbing engineers, contractors, inspectors, labor representatives, manufacturers, and other industry professionals have worked together to develop and continually improve a code that protects the health and safety of New Jersey residents. Their broad, hands-on expertise makes the NSPC a fair, balanced, practical, and innovative model plumbing code that reflects advances in technology while remaining easy to understand and apply.”
“The National Standard Plumbing Code has protected the health and safety of New Jersey residents for nearly 50 years, and the 2024 edition continues that tradition by incorporating the latest materials, technologies, water- and energy-saving practices, and advances in plumbing design,” said Saeed Warden, construction official, plumbing sub-code official, Plainfield, New Jersey.
“For decades plumbing engineers, designers and contractors have relied on the technical information in the National Standard Plumbing Code; it has guided them in providing valuable designs for building owners while protecting the environmental and public health,” said Luis Rodriguez, CPD, LEED AP, senior partner, KSI Consulting Engineers, LLC.
“The National Standard Plumbing Code has long been an important part of New Jersey’s plumbing industry, providing contractors with a practical and reliable standard that supports quality workmanship and protects the health and safety of the public,” said Nicole Urizzo, executive director, New Jersey Plumbing-Heating-Cooling Contractors Association (NJPHCC). "As the association representing plumbing professionals across New Jersey, NJPHCC is proud to support a code developed with meaningful input from the people who work in our industry every day. Continued adoption of the NSPC also gives us consistency in how we educate and train the next generation of plumbing professionals, helping ensure New Jersey maintains a highly skilled workforce for years to come.”
“Developed by a balanced committee of plumbing engineers, inspectors, contractors, labor, manufacturers, and other industry professionals, the NSPC brings together the expertise needed to create a practical, innovative, and comprehensive plumbing code,” said Vincent Tinervia, owner, Tinervia Plumbing and Heating. “It is a code that is easy to understand and apply, while maintaining a strong focus on public health, safety, efficiency, and value for consumers.”
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