2021 International Plumbing Code by International Code Council, ISBN-13: 978-1609839628
[PDF eBook eTextbook] – Available Instantly
- Publisher: ICC (International Code Council); 1st edition (March 6, 2020)
- Language: English
- ISBN-10: 1609839625
- ISBN-13: 978-1609839628
The 2021 IPC® provides minimum regulations for plumbing facilities and provides for the acceptance of new and innovative products, materials, and systems. In October 2019, the Code Council released an independent study comparing model plumbing codes. It found that over a 12-year period, counties using the IPC saved $38 billion in construction costs, emitted 1,000,000 fewer tons of carbon dioxide, saw an additional 166,000 jobs, and saved 880 million feet of pipe. On average, a single-family home could save up to $4,000 in labor, materials and overhead compared to that same home built to other codes. To learn more about the IPC’s impact on construction, the economy and the environment, read the full report at www.iccsafe.org/IPC.
Important changes in the 2021 IPC include:
- Multiple-user toilet facilities to serve all genders are now permitted.
- Two new methods for relining/rehabilitation of existing sewers are added.
- Accommodations for mounted roof top solar panels over vent terminals is added.
- CSA B805/ICC 805 Rainwater Harvesting Systems is allowed as an alternative design method.
- Plumbing provisions from ICC A117.1-2017 Standard for Usable and Accessible Buildings and Facilities are now included.
Table of Contents:
CHAPTER 1 SCOPE AND
ADMINISTRATION . . . . . . . . . . . . . . 1-1
PART 1—SCOPE AND APPLICATION. . . . . . . . . . . 1-1
Section
101 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
102 Applicability. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
PART 2—ADMINISTRATION
AND ENFORCEMENT . . . . . . . . . . . . . . . . 1-2
Section
103 Code Compliance Agency . . . . . . . . . . . . . . . . . . . 1-2
104 Duties and Powers of the Code Official . . . . . . . . . 1-2
105 Approval. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
106 Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
107 Temporary Equipment, Systems and Uses. . . . . . . 1-5
108 Inspections and Testing . . . . . . . . . . . . . . . . . . . . . 1-5
109 Fees. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
110 Construction Documents . . . . . . . . . . . . . . . . . . . . 1-6
111 Notice of Approval . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
112 Service Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
113 Stop Work Order . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
114 Means of Appeals . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
115 Violations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
CHAPTER 2 DEFINITIONS . . . . . . . . . . . . . . . . . . . 2-1
Section
201 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
202 General Definitions . . . . . . . . . . . . . . . . . . . . . . . . 2-1
CHAPTER 3 GENERAL REGULATIONS . . . . . . . 3-1
Section
301 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
302 Exclusion of Materials Detrimental
to the Sewer System . . . . . . . . . . . . . . . . . . . . . . 3-1
303 Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
304 Rodentproofing. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
305 Protection of Pipes and Plumbing
System Components . . . . . . . . . . . . . . . . . . . . . . 3-2
306 Trenching, Excavation and Backfill . . . . . . . . . . . . 3-2
307 Structural Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
308 Piping Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
309 Flood Hazard Resistance . . . . . . . . . . . . . . . . . . . . 3-4
310 Washroom and Toilet Room Requirements. . . . . . 3-5
311 Toilet Facilities for Workers . . . . . . . . . . . . . . . . . 3-5
312 Tests and Inspections . . . . . . . . . . . . . . . . . . . . . . . 3-5
313 Equipment Efficiencies . . . . . . . . . . . . . . . . . . . . . 3-6
314 Condensate Disposal . . . . . . . . . . . . . . . . . . . . . . . 3-6
315 Penetrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
316 Alternative Engineered Design . . . . . . . . . . . . . . . 3-7
CHAPTER 4 FIXTURES, FAUCETS
AND FIXTURE FITTINGS . . . . . . . . 4-1
Section
401 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
402 Fixture Materials . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
403 Minimum Plumbing Facilities . . . . . . . . . . . . . . . . 4-1
404 Accessible Plumbing Facilities . . . . . . . . . . . . . . . 4-5
405 Installation of Fixtures . . . . . . . . . . . . . . . . . . . . . . 4-5
406 Automatic Clothes Washers. . . . . . . . . . . . . . . . . . 4-7
407 Bathtubs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
408 Bidets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
409 Dishwashing Machines . . . . . . . . . . . . . . . . . . . . . 4-7
410 Drinking Fountains . . . . . . . . . . . . . . . . . . . . . . . . 4-7
411 Emergency Showers and Eyewash Stations . . . . . 4-8
412 Faucets and Fixture Fittings. . . . . . . . . . . . . . . . . . 4-8
413 Floor and Trench Drains . . . . . . . . . . . . . . . . . . . . 4-9
414 Floor Sinks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
415 Flushing Devices for
Water Closets and Urinals . . . . . . . . . . . . . . . . . 4-9
416 Food Waste Disposer Units . . . . . . . . . . . . . . . . . 4-10
417 Garbage Can Washers . . . . . . . . . . . . . . . . . . . . . 4-10
418 Laundry Trays . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
419 Lavatories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
420 Manual Food and Beverage
Dispensing Equipment. . . . . . . . . . . . . . . . . . . 4-10
421 Showers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
422 Sinks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
423 Specialty Plumbing Fixtures . . . . . . . . . . . . . . . . 4-12
424 Urinals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
425 Water Closets . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12
426 Whirlpool Bathtubs . . . . . . . . . . . . . . . . . . . . . . . 4-12
CHAPTER 5 WATER HEATERS . . . . . . . . . . . . . . . 5-1
Section
501 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
502 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
503 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
504 Safety Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
505 Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
CHAPTER 6 WATER SUPPLY
AND DISTRIBUTION . . . . . . . . . . . . . 6-1
Section
601 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
602 Water Required. . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
603 Water Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
604 Design of Building Water
Distribution System . . . . . . . . . . . . . . . . . . . . . . 6-2
605 Materials, Joints and Connections . . . . . . . . . . . . . 6-4
606 Installation of the Building Water
Distribution System . . . . . . . . . . . . . . . . . . . . . . 6-9
607 Hot Water Supply System . . . . . . . . . . . . . . . . . . 6-10
608 Protection of Potable Water Supply . . . . . . . . . . . 6-11
609 Health Care Plumbing . . . . . . . . . . . . . . . . . . . . . 6-17
610 Disinfection of Potable Water System . . . . . . . . . 6-18
611 Drinking Water Treatment Units . . . . . . . . . . . . . 6-18
612 Solar Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18
613 Temperature Control Devices and Valves . . . . . . 6-18
CHAPTER 7 SANITARY DRAINAGE. . . . . . . . . . . 7-1
Section
701 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
702 Materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
703 Building Sewer. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
704 Drainage Piping Installation. . . . . . . . . . . . . . . . . . 7-3
705 Joints. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
706 Connections Between Drainage
Piping and Fittings. . . . . . . . . . . . . . . . . . . . . . . 7-6
707 Prohibited Joints and Connections . . . . . . . . . . . . . 7-7
708 Cleanouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
709 Fixture Units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
710 Drainage System Sizing . . . . . . . . . . . . . . . . . . . . 7-10
711 Offsets in Drainage Piping in Buildings
of Five Stories or More . . . . . . . . . . . . . . . . . . 7-10
712 Sumps and Ejectors . . . . . . . . . . . . . . . . . . . . . . . 7-11
713 Computerized Drainage Design . . . . . . . . . . . . . . 7-12
714 Backwater Valves. . . . . . . . . . . . . . . . . . . . . . . . . 7-12
715 Vacuum Drainage Systems . . . . . . . . . . . . . . . . . 7-12
716 Replacement of Underground Building Sewers
and Building Drains by Pipe-Bursting
Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12
717 Relining Building Sewers and
Building Drains . . . . . . . . . . . . . . . . . . . . . . . . 7-13
718 Rehabilitation of Building Sewers and
Building Drains . . . . . . . . . . . . . . . . . . . . . . . . 7-13
CHAPTER 8 INDIRECT/SPECIAL WASTE . . . . . 8-1
Section
801 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
802 Indirect Wastes. . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-1
803 Special Wastes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
CHAPTER 9 VENTS. . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
Section
901 General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
902 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
903 Vent Terminals. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-1
904 Outdoor Vent Extensions. . . . . . . . . . . . . . . . . . . . 9-2
905 Vent Connections and Grades . . . . . . . . . . . . . . . . 9-2
906 Vent Pipe Sizing . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
907 Vents for Stack Offsets . . . . . . . . . . . . . . . . . . . . . 9-4
908 Relief Vents—Stacks of More Than
10 Branch Intervals . . . . . . . . . . . . . . . . . . . . . . 9-4
909 Fixture Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
910 Individual Vent . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
911 Common Vent . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
912 Wet Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
913 Waste Stack Vent. . . . . . . . . . . . . . . . . . . . . . . . . . 9-6
914 Circuit Venting. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6
915 Combination Waste and Vent System . . . . . . . . . . 9-7
916 Island Fixture Venting . . . . . . . . . . . . . . . . . . . . . . 9-7
917 Single-Stack Vent System . . . . . . . . . . . . . . . . . . . 9-7
918 Air Admittance Valves . . . . . . . . . . . . . . . . . . . . . 9-8
919 Engineered Vent Systems . . . . . . . . . . . . . . . . . . . 9-9
920 Computerized Vent Design . . . . . . . . . . . . . . . . . . 9-9
CHAPTER 10 TRAPS, INTERCEPTORS
AND SEPARATORS . . . . . . . . . . . . 10-1
Section
1001 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-1
1002 Trap Requirements . . . . . . . . . . . . . . . . . . . . . . . 10-1
1003 Interceptors and Separators. . . . . . . . . . . . . . . . . 10-2
1004 Materials, Joints and Connections . . . . . . . . . . . 10-4
CHAPTER 11 STORM DRAINAGE . . . . . . . . . . . . 11-1
Section
1101 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
1102 Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-1
1103 Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2
1104 Conductors and Connections. . . . . . . . . . . . . . . . 11-2
1105 Roof Drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-2
1106 Size of Conductors, Leaders
and Storm Drains. . . . . . . . . . . . . . . . . . . . . . . 11-3
1107 Siphonic Roof Drainage Systems . . . . . . . . . . . . 11-9
1108 Secondary (Emergency) Roof Drains . . . . . . . . . 11-9
1109 Combined Sanitary and Storm Public Sewer . . . 11-9
1110 Controlled Flow Roof Drain Systems . . . . . . . . . 11-9
1111 Subsoil Drains . . . . . . . . . . . . . . . . . . . . . . . . . . 11-10
1112 Building Subdrains . . . . . . . . . . . . . . . . . . . . . . 11-10
1113 Sumps and Pumping Systems . . . . . . . . . . . . . . 11-10
CHAPTER 12 SPECIAL PIPING AND
STORAGE SYSTEMS . . . . . . . . . . . 12-1
Section
1201 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
1202 Medical Gases . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
1203 Oxygen Systems . . . . . . . . . . . . . . . . . . . . . . . . . 12-1
CHAPTER 13 NONPOTABLE
WATER SYSTEMS . . . . . . . . . . . . . 13-1
Section
1301 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-1
1302 On-site Nonpotable Water Reuse Systems . . . . . 13-3
1303 Nonpotable Rainwater Collection and
Distribution Systems . . . . . . . . . . . . . . . . . . . . 13-5
1304 Reclaimed Water Systems. . . . . . . . . . . . . . . . . . 13-7
CHAPTER 14 SUBSURFACE
GRAYWATER SOIL
ABSORPTION SYSTEMS. . . . . . . . 14-1
Section
1401 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-1
1402 System Design and Sizing. . . . . . . . . . . . . . . . . . 14-1
1403 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14-2
CHAPTER 15 REFERENCED STANDARDS . . . . 15-1
APPENDIX A PLUMBING PERMIT
FEE SCHEDULE . . . . . . . . . . . . . . . A-1
Permit Issuance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Unit Fee Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Other Inspections and Fees. . . . . . . . . . . . . . . . . . . . . . . . A-1
APPENDIX B RATES OF RAINFALL
FOR VARIOUS CITIES . . . . . . . . . . B-1
APPENDIX C STRUCTURAL SAFETY . . . . . . . . . C-1
Section
C101 Cutting, Notching and Boring in
Wood Members. . . . . . . . . . . . . . . . . . . . . . . . . C-1
APPENDIX D DEGREE DAY AND
DESIGN TEMPERATURES. . . . . . . D-1
APPENDIX E SIZING OF WATER
PIPING SYSTEM. . . . . . . . . . . . . . . . E-1
Section
E101 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1
E102 Information Required . . . . . . . . . . . . . . . . . . . . . . E-1
E103 Selection of Pipe Size . . . . . . . . . . . . . . . . . . . . . . E-1
E104 Selection of Pipe Size . . . . . . . . . . . . . . . . . . . . . E-19
E105 Determination of Pipe Volumes . . . . . . . . . . . . . E-19
APPENDIX F BOARD OF APPEALS . . . . . . . . . . . F-1
Section
F101 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-1
INDEX. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INDEX-1
ICC (International Code Council) is a leading organization dedicated to developing a single set of comprehensive, coordinated national model construction codes. To date, 48 U.S. states have adopted various international codes from ICC.
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