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Home / / 2015 National Standard Plumbing Code . NSPC

2015 National Standard Plumbing Code . NSPC

2015 National Standard Plumbing Code NSPC


The material presented in this Code does not have legal standing unless it is adopted by reference, or by inclusion, in an act of state,

 county, or municipal government. Therefore, administration of the provisions of this Code must be preceded by suitable
legislation at the level of government where it is desired to use this Code. In some places in this Code, reference is made to
 “Authority Having Jurisdiction.” The identity of an Authority Having Jurisdiction will be established by the act that gives
legal standing to the Code provisions. Proposed changes to the Code can be submitted by any interested party on forms available from PHCC-National Association. Cutoff dates for submitting proposed changes are published by PHCC-National Association, along with the dates for public hearings and final voting by the NSPC Committee. The NSPC is revised and reprinted on a three-year cycle. Personal appearance before the Committee for a hearing on any Code matter can be had by interested parties after a request in writing. In the course of revision, certain outdated sections may have been deleted. In order to maintain consistency and perpetuity of the numbering system, those deleted sections and numbers have been removed from this printed text, or placed in reserve.

Table of content :

Chapter 1 Definitions
Chapter 2 General Regulations
Chapter 3 Materials
Chapter 4 Joints and Connections
Chapter 5 Traps, Cleanouts and Backwater Valves
Chapter 6 Liquid Waste Treatment Equipment
Chapter 7 Plumbing Fixtures, Fixture Fittings and Plumbing Appliances
Chapter 8 Hangers and Supports
Chapter 9 Indirect Waste Piping and Special Wastes
Chapter 10 Water Supply and Distribution
Chapter 11 Sanitary Drainage Systems
Chapter 12 Vents and Venting
Chapter 13 Storm Water Drainage
Chapter 14 Special Requirements For Health Care Facilities
Chapter 15 Tests and Maintenance
Chapter 16 Regulations Governing Individual Sewage Disposal Systems for Homes and
Other Establishments Where Public Sewage Systems Are Not Available
Chapter 17 Private Potable Water Supply Systems
Chapter 18 Mobile Home & Travel Trailer Park Plumbing Requirements
Chapter 19 Referenced Standards
Appendix A Sizing Storm Drainage Systems
Appendix B Sizing the Building Water Supply and Distribution Piping Systems
Appendix C Conversions: Metric to U.S. Customary Units
Appendix D Determining the Minimum Number of Required Plumbing Fixtures
Appendix E Special Design Plumbing Systems
Appendix F Requirements of the Adopting Agency
Appendix G Green Plumbing and Mechanical Code Supplement (Excerpts)
Appendix H Combined Building Drains and Building Sewers
Appendix I Fixture Unit Value Curves for Water Closets
Appendix K Flow in Sloping Drains
Appendix L An Acceptable Brazing Procedure for General Plumbing
Appendix M Converting Water Supply Fixture Units (WSFU) to Gallons Per Minute Flow (GPM)

Alphabetical Index


2015 National Standard Plumbing Code (NSPC)



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