The National Standard Plumbing Code (NSPC)
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2015 NSPC today!
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Since first publishing a Standard Plumbing code in 1933, PHCC has been maintaining what is known today as the National Standard Plumbing Code (NSPC) on an annual basis.
Designed to ensure the proper installation of plumbing systems, the NSPC provides local and state governments, code administrative bodies, and industry with a modern code to protect public health and safety.
To keep the code current and viable and with input from all interested parties, the NSPC Committee — comprised of licensed contractors, engineers, and inspectors — reviews the code annually and updates it on a three-year cycle.
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2018 NSPC Accepted Matrix
The following items were accepted in some form or tabled at the NSPC Public Hearing. Items not listed were either withdrawn prior to the Public Hearing or were defeated by committee vote.
2018 NSPC Proposed Changes
The time period for proposed changes to the 2018 NSPC has closed.
Proposed changes may be submitted for approval until the date noted on this page. Changes are considered, discussed, and voted on at a public hearing. A two-thirds vote is required to accept a proposed change. There are no fees required for submission or approval.
Past editions of the NSPC are available through the bookstore. PHCC also offers free online viewing of the 2015 NSPC, best viewed through Internet Explorer or Firefox.