index [] california plumbing code/index.pdf · 2013 california plumbing code 557 index ......
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– A –ABANDONED CESSPOOLS, GREASEINTERCEPTORS, SEEPAGE PITS,SEPTIC TANKS, AND SEWERS . . . . . .722.0, 1014.3.7,
H 11.0, L 303.0ABSORPTION AREA, CAPACITY OF . . . . . . . . . . . . .H 3.0ACCESS PANELS . . . . . . . . . . . . .317.1(5), 402.11, 409.6,
508.1, 1319.1.1ACCESSIBILITY OF
Appliances . . . . . . . . . . . .507.26, 508.2.2, 508.3, 508.4Chemical waste system . . . . . . . . . . . . . . . . . . . . .811.4Cleanouts . . . . . . . . . . . .509.5.9, 707.8, 707.13, 719.5
909.1, 910.6, 1017.1, 1103.4Connectors . . . . . . . . . . . . . . . . . . . . . .604.4, 1211.4.4Continuous wastes and fixturetailpieces . . . . . . . . . . . . . . . . . . .405.2, 420.3, 807.2
Dissimilar metals . . . . . . . . . . . . . . . . . . . . . . . . . .310.6Draft hoods . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.11.5Drips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1210.8.2Emergency eyewash equipment . . . . . . . . . . . . . .416.4Firefighter breathing airreplenishment systems . . . . . . . . . . .F 5.3, F 6.2, F 7.1,
F 7.2, F 9.3, F 11.1Fixtures for inspection,repairs, and cleaning . . . . . . . . . . . . . . . . . . . . .402.1
Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . .1208.5.10.2Fuel gas meters . . . . . . . . . . . . . . . . . .1208.6.1, E 26.2Fuel gas piping . . . . . . . . . . . . . . .1210.1.6, 1210.2.2.1,
E 24.1.1.2 (4)Fuel gas pressure regulators . . . . . .1208.7.3, 1210.4.1Grease interceptors . . . . . . . . . . . . . . .1014.2, 1014.3.4Interceptors and separators . . .1009.3, 1009.5, 1016.4,
1017.1, H 9.5Island fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . . .909.1Joints . . . . . . . . . . . . . . . . . . . . . . . . . .705.10.2, 1318.2Manholes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 5.12Medical gas and vacuum equipment . . .1324.1, 1325.1M/H parks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E 11.1Nonpotable water systems . . . . . . .1602.2.3, 1702.9.10Plumbing facilities . . . . . . . . . . . . . . . . . . .402.7, 422.4Pool heaters . . . . . . . . . . . . . . . . . . . . . . . . . .L 603.4.6Pressure regulators . . . . . . . . . . . . . . . . . . . . . . . .608.2Receptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .804.1Septic tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 5.5Showers . . . . . . . . . . . . . . . . . . . . . . . .408.6, L 402.5.2Slip joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .402.11Storage Tanks . . . . . . . . . . . . .1702.9.5.3, K 104.4.1.1,
L 504.4.1.1
Sumps . . . . . . . . . . . . . . . . . . . .710.9, 810.3, 1101.5.2Traps . . . . . . . . . . . . . . . . . . . . .1003.1, 1006.1, 1007.1Vacuum drainage systems . . . . . . . . . . . . . . . . . .C 7.2Valves . . . . . . . . . . . . . .413.3, 606.2, 606.3, 606.6, 710.4,
710.6, 1101.5.4, 1210.2.2.1,1210.11, 1319.1, 1319.3.3,1319.6, 1602.2.4, E 33.4
Vent connectors . . . . . . . . . . . . . . . . . . . . . . .509.10.10Water heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . .504.3Water meters . . . . . . . . . . . . . . . . . . . . . . . . . . .L 404.3
ACCESSIBLEDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203.0
ACCESSIBLE, READILYDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203.0
ACRYLONITRILE-BUTADIENE-STYRENE(ABS) PIPE . . . . . . . . . . . .203.0, 310.8, 402.6, 701.1(2),
705.1, 705.10.4, 707.1, 903.1(2),903.1.1, 1003.1, 1101.3, 1102.1.1,
1102.1.2, 1102.1.3, 1602.9.3, H 6.1,Table 313.1, Table 701.1
ADDITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . .101.9, 101.11ADVANCE NOTICE FOR INSPECTIONS . . . . . . .103.5.7.1AIR BREAKS
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203.0Required . . . . .415.3, 801.1, 801.2.2, 801.3, 801.6, 814.3
AIR INTAKES . . . . . . .506.9(6), 509.8(1), 509.8.2, 509.8.4,906.2, 1008.1, 1213.6.1.3(2),1324.2(7), 1324.4, 1325.3(2)
AIR TANK, FOR SUMPS . . . . . . . . . . . . . . . . . . . . . .710.11AIR TESTS
Fuel gas piping systems . . . . . . . . . . . . . . . . . . .1213.0Sanitary drainage . . . . . . . . . . .103.5.8.1, 712.3, 723.1Storm drainage . . . . . . . . . . . . . . . . . . . . . . . . .1109.2.2Water piping systems . . . . . . .103.5.6, 103.5.8.1, 609.4
AIR GAPSDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203.0Method . . . .409.5, 410.2, 414.2, 419.3, 603.3.1, 603.4.6,
603.5.5, 603.5.12, 603.5.17, 603.5.21,610.13(7), 801.2.2, 801.3, 801.6, 814.3,1702.4, K 102.2, L 502.2, Table 603.2,
Table 603.3.1Required . . . . .603.4.4, 603.5.9, 611.2, 801.1, 801.2.3,
801.4, 801.5, 806.1, 807.4, 1306.2,1308.1, 1602.3, 1604.4, C 7.2.1, E 21.3
ALTERATIONS AND REPAIRSDeviations allowed . . . . . . . . . .101.6, 103.5.4, 301.1.3Fuel gas piping . .1206.3, 1210.4.1, 1213.1.2, 1213.4.2
5572013 CALIFORNIA PLUMBING CODE
INDEX© 2012 International Association of Plumbing and Mechanical Officials. All rights reserved.
The copyright in this index is separate and distinct from the copyright in the document that it indexes. The licensing provisions setforth for the document are not applicable to this index. This index may not be reproduced in whole or in part by any means withoutthe express written permission of IAPMO.
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ALTERNATE MATERIALS, DESIGN,AND METHODS . . . . . . . . . . . . . . . . . . . . . . . . . . . .301.2
ALTERNATE, WATER SOURCEdefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203.0
ALTERNATE WATER SOURCES . . . . . . .601.2.2.1, 1601.2ANCHORS AND HANGERS . . . . . . . . . . . . .(see Supports)APPLIANCES
Categorized vent diameter/areadefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203.0
Connectors . . . . . . . . .509.12, 510.2.10, 1211.0, E 36.0Direct-vent . . . .206.0, 504.2, 506.1, 509.2.4, 509.5.10.1,
509.8, 509.11, 511.0, Table 509.4Fuel connector
definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203.0Fuel gas, demand requirements . . . . . .1208.4.1, 1215.0,
1216.4, 1216.5,Table 1208.4.1
In attics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .508.4Indirect waste type . . . . . . . . . . . . .806.0, 807.0, 809.0Roofs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .508.0Under-floor spaces . . . . . . . . . . . . . . . . . . . . . . . .508.4Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.0
APPLICATION FOR PERMIT . . . . . . . . . . . . . . . . . . .103.2APPROVAL REQUIRED
Appliances, fixtures . . . . . . .301.1, 407.1, 507.1, 610.2,710.13, 802.1
Backflow preventers . . . . . . . . . . . . . . . . . . . . . . .603.2Cesspools . . . . . . . . . . . . . . . . . . . . . . . . . .Appendix HChemical waste systems . . . . . . . . . . . . . . . . . . . .811.0Chimneys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .503.1Combination waste andvent systems . . . . . . . . . . . . . . . . .910.0, Appendix B
Completed plumbing work . . . . . . . . . . . . . . . . . . .103.5Condensate disposal . . . . . . . . . . . . . . . . . . . . . . .814.1Devices . . . . . . . . . . . . . . . . . . . . . .301.1, 603.2, 608.2Draft hoods . . . . . . . . . . . . . . . . . . . . . . . . . .509.11.1.2Drainage piping . . . . . . . . . . . . . . . .708.1, 714.2, 718.1Fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .406.3Flue, vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.2Grease interceptors . . . . . . . . . . . . . . . . . . . . . . .1014.0Industrial interceptors and separators . .1009.2, 1009.7Manholes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .719.6Materials, specifications, standards . . . . .301.1, 604.1,
701.0Plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101.5Seepage pits . . . . . . . . . . . . . . . . . . . . . . . .Appendix HSeptic tank and disposal systems . . . . . . . .Appendix HSleeves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .312.10.2Special fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . .407.1Supports . . . . . . . . . . . . . . . . . . . . . . . . . . .Table 313.1Vacuum drainage systems . . . . . . . . . . . . . . . . . .C 7.0Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .503.1Water heaters, fuel gas . . . . . . . . . .501.1, 503.0, 504.1Water heaters, oil . . . . . . . . . . . . . .501.1, 503.0, 505.1Water supply systems . . . . . . . . . . . . . . . . . . . . . .602.4
APPROVEDdefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203.0
APPROVED TESTING AGENCYdefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203.0
AREA DRAINdefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203.0
ASBESTOS-CEMENT PIPE . . . .605.1, 705.2, Table 604.1,Table 701.1, Table 1102.5
ASPIRATORS . . . . . . . . . . . . . . . . . .203.0, 603.5.9, 1308.0ATTACHMENT, VERTICAL PIPING . . . . . . . . . . . . . .313.0AUTHORITY HAVING JURISDICTION
definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203.0AUTHORITY TO
Disconnect gas . . . . . . . . . . . . . . . . . . . . . . . . . .1206.0Render gas service . . . . . . . . . . . . . . . . . . . . . . .1205.0
AUTOMATICAppliances . . . . . . . . . . . . . . . . . . . . . .509.3.4, 509.5.7Devices . . . . . . . . . . . . . . . . . . . . .509.13, 606.7, 608.4Drains . . . . . . . . . . . . . . . . . . . . . . .K 104.9.4, L 504.9.4Flushing tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . .413.4Flushometer valves . . . . . . . . . . . . . . . . . . . . . . . .413.3Pumps . . . . . . . . . . . . . . . .1017.1, 1101.5.2, 1325.2.1,
C 7.2.5, H 6.8, L 602.3Seat cover dispensers . . . . . . . . . . . . . . . . . . . .411.2.1Shutoff . . . . . . . . . . . . . . . . . . . . . . . . . . . .403.5, 504.6Siphon, septic tanks . . . . . . . . . . . . . . . . . . . . . . .H 6.8Sumps and tanks . . . . . . . . . . . . . . . . . . . . . . . . .710.9Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .603.5.15
AUTO WASH RACKS . . . . . . . . . . . . . . . . . . . . . . . .1011.0
– B –BACKFILLING . . . . . . . . . . . . . .314.0, 1210.1.2.1, 1317.4,
1602.11.3, H 6.2BACKFLOW . . . . . . . .204.0, 402.8, 601.1, 603.0, 1101.5.4,
1208.3.2, 1214.2, 1324.2, 1325.2,1602.2.4, 1602.9.1, 1702.9.5.5, E 16.1,
E 58.1, K 104.4.2, L 504.4.2BACKFLOW CONNECTION . . . . . . . . . . . . . .204.0, 603.0BACKFLOW PREVENTERS . . . . .(see Cross-connections)BACKFLOW PREVENTIONASSEMBLIES OR DEVICES . . . . . . .403.3.1, 412.1, 414.2,
417.3, 419.3, 602.2,602.3, 603.0, 610.13,
E 64.1, E 77.1,L 402.3.1, Table 603.2
BACKFLOW PROHIBITED LOCATIONS . . . . . . . .603.4.9BACKPRESSURE BACKFLOW . .(see Cross-connections)BACKSIPHONAGE . . . . . . . . . . . .(see Cross-connections)BACKSIPHONAGE OF TRAPS, PROTECTION . . . .1002.1BACK-TO-BACK FIXTURES . . . . . . . . . . . . . . . . . . . .704.2BACKWATER VALVES . . .204.0, 710.1, 710.3, 710.4, 710.6,
904.1, 1006.0, 1101.5.4, 1602.2.4,1602.9.1(8), 1702.9.5.5,
K 104.4.2, L 504.4.2
558 2013 CALIFORNIA PLUMBING CODE
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BALLCOCKS . . . . . . . . . . . . . . . . . . . .603.5.2, Table 603.2BAPTISTRIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .407.1BATHROOM GROUP
definition . . . . . . . . . .204.0, Table C 4.1, Table C 4.1(1)BATHROOM, HALF
definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0BATHTUB, PROHIBITED TYPE . . . . . . . . . . . . . . . . .406.3BATHTUBS AND WHIRLPOOL BATHTUBS . . . . . . .409.0BELL TRAPS, PROHIBITED . . . . . . . . . . . . . . . . . . .1004.1BIDETS . . . . . . . . . . . . . . . . . .402.5, 410.0, 601.1, 908.2.1BLOWOFF CONDENSERS . . . . . . . . . .810.1, Table 810.1BOARD OF APPEALS . . . . . . . . . . . . . . . . . . . . . . . .102.3BOILER BLOWOFF
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0Prohibited discharge . . . . . . . . . . . . . . . . . . . . . . .810.1
BOLTS, NONCORROSIVE . . . . . . . . . . . . . . . .402.3, 402.4BONDING JUMPER
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0BOTTLE TRAPS . . . . . . . . . . . . . . . . . . . . . . . . . . . .1004.1BOTTLING ESTABLISHMENTS . . . . . . . . . . . . . . . .1013.0BOWL WAX OR GASKETS . . . . . . . . . . . . . . . . . . . .402.6BRANCH
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0BRANCH, FIXTURE
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0BRANCH, HORIZONTAL
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0BRANCH VENT
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0BRASS CONNECTIONS, GROUND JOINT . . . . . .705.10.3BRASS PIPE . . . . . . . . . .302.1, 405.2, 420.3, 605.2, 705.3,
707.1, 1101.3, 1208.5.2.3, 1208.5.3.2,1208.5.8.4, A 4.2, E 32.1, Table 313.1,
Table 604.1, Table 701.1BRAZING . . . . . . .309.2, 408.7, 605.2.1, 605.3.1, 605.17.1,
609.3, 705.3.1, 705.5.1, 705.11.1, 705.11.2,1208.5.8.1, 1208.5.8.2, 1302.4, 1302.5,1310.3, 1310.6, 1315.5, 1315.6, 1318.2,
1318.4, 1318.7, 1318.8BTU RATING, FUEL GAS APPLIANCES . . . . . . . . .1208.4.1,
Table 1208.4.1BUILDING
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0BUILDING DRAIN (SANITARY)
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0Size of . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .703.0
BUILDING DRAIN (STORM)Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0
BUILDINGS OVER SEWER . . . . . . . . . . . . . . . . . . .101.6.1BUILDING SEWERS . . . . . . . . . . . . . . . . .Chapter 7, Part II
Cleanouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .719.0Combined
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0Damage to . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .305.0Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0
Distance from buildingand below ground . . . . . . .312.3, 721.0, Table 721.1
Grade and support of . . . . . . . . . . . . . . . . . . . . . .718.0Industrial wastes . . . . . . . . . . . . . . . . . . . . . . . . . .306.0Location of . . . . . . . . .307.0, 312.0, 721.0, Table 721.1Material of . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .715.0Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .713.0Sanitary,
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0Size of . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .717.0Storm
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0Testing of . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .723.0Water pipe in trench . . . . . . . . . . . . . . . . . . . . . . .720.0
BUILDING SEWERS AND DRAINS, EXISTING . . .101.6.1BUILDING SUBDRAINS . . . . . . . . . . . . . . . . .204.0, 1101.6BUILDING SUPPLY
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0BURRED ENDS . . . . . . . . . . .309.3, 609.1, 701.2.1, 903.3,
1208.5.5, 1314.3BUSHINGS, SOLDER . . . . . . . . . . . . . . .701.5, Table 701.5
– C –CALIFORNIA ADMINISTRATION . . . . . . . . . . . . .Chapter 1CAPACITY OF
Air tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .710.11Breathing air cylinders . . . . . . . . . . . . . . . . . . . . .F 10.1Disposal fields . . . . . . . . . . . .H 3.0, H 6.0, Appendix HEquipment . . . . . . . . . . . . . . . . . . . .804.1, Table 814.1Fuel gas piping . . . . . . . . . .1208.1.1, 1208.4.1, E 31.0,
E 35.2, E 35.3, E 36.6Interceptors . . . . . . . . . . . . . . . . . . . . .1014.2.1, 1017.0Medical gas and vacuum systems . . .1320.2.2, 1324.7,
1325.4Nonpotable water systems . . . . . . .1602.2.2, 1602.9.1,
1602.10.2Scuppers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D 4.0Seepage pits . . . . . . . . . . . . .H 3.0, H 7.1, Appendix HSeptic tanks . . . . . . . . . . . . . . . . . .H 2.0, H 5.4, H 5.14Sewage ejectors or pumps . . . . . . . . . . . . . . . . . .710.3Sumps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1101.5.2Vacuum drainage systems . . . . . . . . . . . . . . . . .C 7.2.2Venting systems . . . . . . . . . .510.1, 510.2, Appendix GWater closet tanks . . . . . . . . . . . . . . . . . . . . . . .403.2.1Water heaters . . .501.1, L 603.4.2, L 603.5.3, Table 501.1
CAST-IRON SOIL PIPEAND FITTINGS . . . . . . . . . .310.2, 310.8, 316.1, 402.6.1,
604.5, 701.1, 701.1(6), 705.4,707.1, 705.11.1, 1101.3, 1102.1.1,1208.5.2.1, 1208.5.8.4, 1505.2,
Table 313.1, Table 701.1CAULKED JOINTS . . . . . . . . . . . . . . . . . .705.4.1, 705.11.1CAULKING FERRULES . . . . .701.4, 705.10.3, Table 701.4CEMENT MORTAR
JOINTS, PROHIBITED . . . . . . . . . . . . . . . . . . . . .705.1.2
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CERTIFICATE OF FINAL APPROVAL . . . . . . . . . . . . . . . .103.5.9.3, 1204.0
CERTIFICATIONBackflow assembly testers . . . . . . . . . . . . .205.0, 603.2Medical gas and vacuum certifiers . . . . . . . . . .1327.1.1Medical gas and vacuum installers . . . .1302.3, 1310.3Medical gas and vacuum systems . . . . . . . . . . .1310.2,
1326.1.1, 1327.0Pipe welder
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .225.0CESSPOOL . . . . . . . . . . . . . . . . . . . . . . .Appendix H, H 8.0
Abandoned . . . . . . . . . . . . . . . . . . . . . . . .722.0, H 11.0Connections to sewer prohibited . . . . . . . . . . . . . .714.3Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0Distance from lot line,building, surface . . . . . . . . .Table 1602.4, Table H 1.7
Must be on same lot as building . . . . . . . . . . . . . .307.0CHANGE IN DIRECTION OF DRAINAGE PIPING . . .706.0CHANGE IN DIRECTION OF FUEL GAS PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . .1210.7
CHECK VALVESIn drainage systems . . . . . . .710.4, 710.12.1, 710.13.2,
1004.2In firefighter breathing airreplenishment systems . . . . . . . .F 5.7, F 6.5.1, F 7.3
In fuel gas systems . . . . . . . . . . . . . . . . . . . . .1208.8.1In medical gas and vacuum systems . .1324.4, 1325.3.1In water systems . . . . . . . . . .603.0, 608.3, Table 603.2
CHEMICAL TOILETS, PROHIBITED . . . . . . . . . . . . .406.3CHEMICAL WASTES . . . . . . . . . . . . . . . . . . . .205.0, 811.0CHIMNEY
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0CHIMNEY, FACTORY-BUILT
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0CHIMNEY, MASONRY
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0CHIMNEY, METAL
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0CHLORINATED POLY(VINYL CHLORIDE) (CPVC) PIPE . .205.0, 604.1.1, 604.9,
605.4, 608.5, 811.2,Table 313.1, Table 604.1
CIRCUIT VENTING . . . . . . . . . . . . . . . . . . . . . . . . . . .C 8.0CLARIFIERS . . . . . . . . . . . . . . . . . . .205.0, 1009.0, 1010.1CLEANOUT PLUGS OR CAPS . . . . .707.1–707.3, 707.13,
1109.2CLEANOUTS . . . . . . . . . .316.1, 317.1, 509.5.6.2, 509.5.9,
707.0, 710.1, 712.1, 719.0, 801.2.2,803.1, 909.1, 910.6, 1002.3, 1008.1,
1017.1, 1101.12, 1103.4, B 1.0,C 7.7, E 10.1, E 70.0, Table 707.1
CLEARANCE FORFuel gas vents . . . . . . . . . . . . . . . . .509.7.3.4, 509.10.4Water heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . .504.3
CLEAR WATER WASTEDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0
CLINIC SINKS . . . . . . . . . . . . . . . . . . . .205.0, 413.2, 420.2CLOSET BENDS . . . . . . . . . . . . . . . .310.3, 310.5, 315.2.1
Maximum length . . . . . . . . . . . . . . . . . . . .Table 1002.2CLOSET RINGS . . . . . . . . . . . . . . . . . . . . . . . . . . . .402.6.1CLOSET SCREW BOLTS . . . . . . . . . . . . . . . .402.3, 402.6CLOTHES WASHER STAND PIPE . . . . . . . . .711.1, 804.1CLOTHES WASHER SYSTEM . . . . . . . . . .205.0, 1602.1.1,
1602.8.2.3CODE
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0Validity of . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103.8
COLLECTION CENTERSAND FACILITIES . . . . . . . . . . . . . . . . . . . . .725.0, 1010.3
COMBINATION WASTE ANDVENT SYSTEMS . . . . . . . . . . . .205.0, 910.0, Appendix B
COMBUSTIBLE MATERIALDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0
COMBUSTIBLE PIPING INSTALLATIONS . . . . . . . .1504.0COMBUSTION AIR . . . . . . . . . . . . . . . . . . . . . . . . . . .506.0COMMISSARIES SERVING MOBILE
FOOD PREPARATION UNITS . . . . . . . . . . .205.0, 422.8COMMON
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0COMMON VENT, FUEL GAS . . . . . . . . . . . . . . . . . .509.6.4COMPLEX SYSTEM . . . . . . . . . . . . . . . . . .205.0, 1602.1.3COMPRESSION JOINTS . . . .605.8.1.1, 605.11.1.1, 719.6,
1208.5.9.3CONCEALED SLIP JOINTS . . . . . . . . . . . . . . . . . . .402.11CONCEALING OF WORK PROHIBITEDBEFORE INSPECTION . . . . . . . . . . . . .103.5.1, 103.5.3,
1203.2, 1203.3CONDENSERS AND SUMPS . . . . . . . . . . . . . . . . . . .810.0CONDUCTORS . . . .205.0, 1101.11, 1101.12, 1102.1, 1103.2,
1103.3, 1104.0, 1105.2, 1105.3, 1106.0,1702.6, 1702.7.2, 1702.9.7, K 103.2,
K 104.6, K 104.12, L 503.2,L 504.6, L 504.12
CONNECTIONSFuture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1602.13.2Pressure drainage piping . . . . . . . . . . . . . . . . . . .805.0To plumbing system, required . . . . . . . . . . . . . . . .304.0To sewer, required . . . . . . . . . . . . . . . . . . . . . . . . .713.0Unlawful . . . . . . . . . . . . . . . . . . . . . . . . . . .404.1, 602.0Water heaters . . . . . . . . . . . . . . . . . . . . . . . . . . .604.13
CONNECTORSFirefighter breathing airreplenishment systems . . . . . . . . . .F 5.7, F 6.6, F 7.4
Fuel gas . . . . . . . . . . . . . . . . .1208.6.2, 1211.0, E 10.1,E 17.1, E 35.3, E 36.0
Medical gas and vacuum systems . . . . . . . . . . .1317.5Plumbing . . . . . . . . . . . . .604.4, 604.12, 604.13, E 20.1Vents . . . . . . .509.3.3.3, 509.6, 509.10, 509.14, 510.1,
510.2, Appendix G, Table 509.7.3CONSTRUCTION, EXISTING . . . . . . . . . . . . . . . . . . .101.8
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CONTAMINATION . . . . . . . . .205.0, 603.1, 603.5.5, 609.9(4),714.5, 1305.1, 1318.4, 1318.5,1318.7, 1324.3, 1325.3, C 3.1,C 7.3, E 62.1, F 11.2, F 11.3,
Table 603.2CONTINUOUS VENT
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0CONTINUOUS WASTES
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0Fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .419.2Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .405.2Multiple fixtures . . . . . . . . . . . . . . . . . . . . . . . . . .1001.0
CONTROL VALVES . . . .408.3, 408.9, 601.1, 606.5–606.7,1303.1, 1327.2, 1604.9, C 7.3,
L 602.3.4, L 603.4.4.2COOLING WATER, CONNECTION PERMITTED . . . .808.0COPPER AND LEAD PANS . . . . . . . . . . . . . . . . . . . .408.7COPPER PIPE OR TUBING . . . . .302.1, 312.9, 604.2, 604.3,
604.12, 605.3, 605.17.1,608.5, 609.1, 609.3, 610.12,
701.0, 701.1(4), 705.5,705.11, 811.1, 903.2, 1101.3,
1102.1.1, 1208.5.2.3, 1208.5.3,1208.5.8.4, 1315.4, 1317.7,
1318.5, 1324.4, 1505.2, A 4.2,E 20.1, E 32.1, Table 313.1,
Table 604.1, Table 701.1CORRECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . .103.5.9.1CORROSION-RESISTANT ORPROTECTION FROM . . . . . . . . . . . .312.1, 312.4, 402.3,
402.6.2, 402.6.3, 407.3,506.9, 507.4, 508.1.2,
509.5.3, 509.7, 509.10.1,603.5.15, 613.4, 710.8, 810.2,
811.2, 814.1, 1004.1,1208.5.2.4, 1208.5.3.3,1208.5.6, 1208.6.1.1,
1210.1.3, 1210.1.7.2, 1210.2,1210.3.4, 1211.1(8), 1317.1,1317.2, 1324.7, 1602.9.1,1702.9.5.1, C 7.3, E 7.3,
E 28.1, E 32.0, E 33.2, E 33.3,E 62.1, F 5.3, F 5.4, K 103.3,
K 104.9.2, L 503.3,L 504.9.2
COSMETOLOGY . . . . . . . . . . . . . . . . . . . . . . .422.6, 601.3COSMETOLOGY ESTABLISHMENTS . . . . . .422.7, 601.3COVER PLATES . . . . . . . . . . . . . . . . . . . . . . . . . . . . .707.8COVERED MULTIFAMILY DWELLINGS
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0CRITICAL CARE AREA
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0CRITICAL LEVEL . . . . . . .205.0, 603.5.1, 603.5.2, 603.5.5,
603.5.14, C 7.3, Table 603.2CROSS-CONNECTIONS . . . . . . . . . . . . . . .(see Backflow)
Approval of preventive devices . . . . . . . . . . . . . . .603.2
Backflow preventers . . . .402.10, 403.3.1, 409.5, 412.1,414.2, 417.2, 417.3, 417.4,
419.3, 601.2.3, 602.2, 602.3,603.0, 1308.1, 1702.4,
E 17.0, E 18.0, E 19.0, E 64.1,E 77.1, E 78.1, K 102.2, K 102.3,
L 402.3.1, L 502.2, L 502.3,Table 103.4, Table 603.2
Backpressure . . . . . . . . . . . .204.0, 603.4.4, 603.5.6.1,603.5.8, 901.1, 1002.1
Backsiphonage . . . . . . . .204.0, 406.1, 602.1, 603.5.19,901.1, 1002.1, E 58.1
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . .602.0–603.0Critical level . . . . . . . . . . . . . .603.5.1–603.5.2, 603.5.5,
603.5.14, C 7.3, Table 603.2Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0Prohibited . . . . . . . . . . . . . . . .602.1, 603.4.9, 603.5.13
CROSS-LINKED POLYETHYLENE(PEX) TUBING . . . . . . . .218.0, 604.1.2, 604.9, 604.13,
605.10, Table 313.1,Table 604.1
CROSS-LINKED POLYETHYLENE-ALUMINUM-CROSSLINKED POLYETHYLENE(PEX-AL-PEX) TUBING . . .218.0, 604.9, 604.13, 605.11,
Table 313.1, Table 604.1CUTTING OF STRUCTURAL MEMBERS . . .312.2, 312.11
– D –DAMAGE TO DRAINAGEAND SEWER SYSTEMS . . . . . . . . . . . . . . . .305.0, 714.0
DANGEROUS OR INSANITARY PLUMBING . . . .101.11.1DEBRIS EXCLUDER
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206.0DEFECTIVE MATERIAL, GAS . . .1206.1, 1208.5.5, 1213.4DEFECTIVE SYSTEMS, TESTING OF . . . . . . . . .103.5.8.1DEFINITION OF TERMS . . . . . . . . . . . . . . . . . . . .Chapter 2DEMAND, GAS APPLIANCE . . . . . . . . . . . . . . . . .1208.4.1DEPARTMENT
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206.0DEPARTMENT HAVINGJURISDICTIONDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206.0
DESIGN FLOOD ELEVATION . . . . . . . . . . . . .206.0, 301.3DETRIMENTAL WASTES . . . . . . . . . .306.1, 811.1, 1012.1DEVELOPED LENGTH
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206.0DWV piping . . . . . . . . . . .707.4, 710.13.2, 908.1, C 6.0Indirect waste piping . . . . . . . . . . . . . . . .801.2.1, 801.3Trap arm . . . . . . . . . . . . . . . . . . . .1002.2, Table 1002.2Water piping . . . . . . . . .610.7, 610.9, A 3.4, A 6.2, A 7.1
DIALYSIS WATER-DISTRIBUTION SYSTEMS . . . . .614.0DIAMETER
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206.0DIELECTRIC INSULATORS . . . . . . . . . . . . . . . . . . . .507.1
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DIRECT CONNECTION OF WATERPIPING TO SEWER . . . . . . . . . . . . . . . . . . . . . . . . .602.0
DIRECT-VENT APPLIANCESDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206.0
DIRECT-VENT WATER HEATERS . . . .504.2, 509.2.4, 511.0DIRECTION, CHANGE OF . . . . . . . . . . . . . . . .706.0, 719.1DISCHARGE CAPACITY, FIXTURE . . . . . . . . .702.2, 710.3DISCHARGE PIPING . . . . . . . . . . . . . . .710.12.1, 710.13.2DISHWASHER CONNECTION . . . . . . .405.2, 414.3, 419.2,
604.12, 704.3, 807.4,1014.1.3
DISHWASHING MACHINES . . . . . . . . . . . . . . .414.0, 711.1DISINFECTION . . . . . . . . . . . . . . . . .1604.10.6, 1702.9.4.1DISPOSAL FIELDS . . . . . . . . . .206.0, 1602.10, 1602.11.3,
Appendix H, Table H 1.7DISPOSAL OF
Food waste . . . . . . . . . . . . .414.3, 419.2, 714.4, 807.4,1001.1, 1014.1.3
Liquid waste . . . . . .303.0, 304.0, 710.2, 811.1, 1006.1,1009.1, 1013.1, H 1.2,H 7.1, H 9.0, L 302.0
DISTANCE OF TRAP FROM VENT . . . .1002.2, Table 1002.2DISTRIBUTION BOXES, DISPOSAL FIELDS . . . . . . .H 6.5DOMESTIC HOT-WATER
DISTRIBUTION SYSTEMS FORHEALTH FACILITIES AND CLINICS . . . . . . . . . . . .613.0
DOMESTIC SEWAGEDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206.0
DOORS, SHOWER OR BATHTUB . . . . . . . . .408.5, 409.1DOSING TANKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 6.8DOUBLE CHECK DETECTOR FIREPROTECTION BACKFLOW ASSEMBLY . . . . . .603.3.8,
Table 603.2DOUBLE TRAPS, PROHIBITED . . . . . . . . . . . . . . . .1004.1DOWNSPOUTS . . . . . . . . . . . . . . . . . . . . .206.0, 1702.7.2,
K 103.2, L 503.2DRAFT HOODS . . . . . . .504.3.1, 506.1.2, 509.2.1, 509.5.3,
509.5.4.2, 509.5.5, 509.6.1, 509.6.2.1,509.6.3.1, 509.6.4.1, 509.7.2, 509.7.3.5,509.7.4.1, 509.10.1, 509.10.2, 509.10.5,
509.10.12, 509.11, 510.1.9, 510.2,Appendix G, Table 509.7.3
DRAINSAreaway . . . . . . . . . . . . . . . . . . . . . . . . .1101.7, 1101.8Building . . . . . . . .101.6.1, 204.0, 710.5, 1602.14, C 5.4Building subdrain . . . . . . . . . . . . . . . . . . . . . . . . .1101.6Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206.0Fixture . . . . . . . . . .208.0, 705.10.1, C 8.2, C 9.5, C 9.9Floor . . . . . . . . . .317.1, 418.0, 801.2.2, 908.2, 1003.1,
1006.0, 1014.1, 1014.3.2, 1016.1,1017.1, 1101.10, 1604.1,
1702.1, B 4.0, E 45.0Gray water . . . . . . . . . . . . . . . . . . . . . . . . . . . .1602.2.4House
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .210.0Medical gas and vacuum . . . . . . . . . . . .1324.5, 1325.6Overflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1602.9.1
Relief valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . .608.5Roof . . . . . . . . . . . . . . . . . . .1101.11, 1105.0, 1702.9.7,
K 104.6, L 504.6Shower . . . . . . . . . . . . . . . . . . . . . .317.1, 405.1, 408.4,
408.7, 408.8Storm . . . . . . . . . . . . .1101.12, 1102.3, 1103.0, 1106.0,
1702.6, K 104.12, L 504.12Subsoil . . . . . . . . . . . . . . .1101.5, 1102.5, Table 1102.5Water heater or boiler . . . . . . . . . . . . . . .507.4, 603.5.7
DRAINAGEBelow curb and main sewer level . . . . . . . . . . . . .710.0By gravity required . . . . . . . . . . . . . . . . . . . . . . . .709.0Change in direction . . . . . . . . .(see Change in direction
of drainage piping)Cleanouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .707.0Connection to sewer orprivate disposal system . . . . . . . .305.0, 713.1–713.4
Connection to sump . . . . . . . . . . . . . . . . . .710.2, 710.7Damage to . . . . . . . . . . . . . . . . . . . . . . . . .305.0, 714.0Defective systems . . . . . . . . . . . . . . . . . . . . . .103.5.8.1Fittings, material . . . . . . . . . . . . . . . . . . . . . . . . . .701.2Grade of piping . . . . . . . . . . . . . . . . . . . . . .708.0, 718.1Gray water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1602.0Indirect wastes . . . . . . . . . . . . . . . . . . . . . . . .Chapter 8Joints and connections . . . . . . . . . . . . . . . . . . . . .705.0Length between trap and vent . . .1002.2, Table 1002.2Location . . . . . . . . . . . . . . . . . . . . . . . . . . .307.0, 310.9Material of . . . . . . . . . . . . . . . . . . . .301.0, 701.0, 811.2Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310.9Protection of . . . . . . . . . . . . . . . . . . . . . . . . . . . . .312.0Rainwater catchment . . . . . . .Chapter 17, Appendix K,
L 503.0, L 504.0Roof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1101.11Sanitary . . . . . . . . . . . . . . . . . .Chapter 7, C 4.3, C 5.0,
E 4.0–E 10.0, Appendix HSizing of piping . . . . . . . . . . . . . . . . . . . . . . . . . . .703.0Steam and hot water . . . . . . . . . . . . . . . . . . . . . . .810.0Storm . . . . . . . . . . . . . . . . . . . .Chapter 11, Appendix DSupport . . . . . . . . . . . . . . . . . . . . . .313.0, 718.0, 718.2Vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C 7.0Waste and vent . . . . . . . . . . . . . . . . . . . . . .Table 707.1
DRAINAGE AND PLUMBING GENERAL . . .726.0, 1010.5DRINKING FOUNTAINS . . . . . . . . . . . .405.2, 415.0, 415.1,
601.3.3, 809.0, 1003.1,1303.0, E 65.0
DRUM TRAPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1004.1DUCTILE IRON PIPE . . . . . . . . . . . . . . .605.5, Table 604.1DURHAM SYSTEM
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206.0
– E –EARTHQUAKE-ACTUATED GAS
SHUTOFF VALVES . . . . . . . . . . . . . . . . . . . . . . .1210.18EASEMENTS FOR SEWERS . . . . . . . . . . . . . . . . . . .721.2
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EFFECTIVE GROUND-FAULTCURRENT PATHDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .207.0
EFFECTIVE OPENING . . . . . . . . . . . .207.0, Table 603.3.1EJECTORS . . . . . . . . . . . . . .701.1(3), 702.3, 710.2–710.5,
710.9–710.12, 710.11, 904.1, 1107.1EMERGENCY EYEWASH ANDSHOWER EQUIPMENT . . . . . . . . . . . . . . . . . . . . . .416.0
EMERGENCY SANITARY DRAINAGE . . . . . . . . . . . .727.0EMERGENCY WATER SUPPLY . . . . . . . . . . . . . . . . .615.4EMPLOYEE LAVATORIES IN
FOOD ESTABLISHMENTS . . . . . . . . . . . . . . . . . . .422.9ENFORCING AGENCY
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .207.0EXAMPLE, ILLUSTRATING USEOF GAS TABLES . . . . . . . . . . . . . . . . . . .Figure 1216.1.1
EXCAVATIONS . . . . . . . . . . . . . . . .314.0, 1203.2, 1602.10,H 3.1, H 6.2, H 6.4, H 7.4
EXCESSIVE WATER PRESSURE . . . . . . . . . . . . . . .608.2EXISTING WORK . . . . . . . . . . . . . . . .101.8, 207.0, 301.1.3EXPANSION JOINTS . . . . . . . . . . . . . . . . . . . . . .705.10.2,
1101.4, 1213.2.2EXPANSION OF PIPE, PROVISION FOR . . . . . . . . . .312.2EXPANSION TANKS . . . . . . . . . . . . . . . . . . . .608.2, 608.3
– F –F RATING . . . . . . . . . . . . . . .208.0, 1504.3, 1505.3, 1506.4FAUCETS . . . . . . . . . . . .403.4, 403.6–403.8, 417.0, 420.2,
L 402.4, L 602.7, L 603.4.5.3FEES . . . . . . . . . . . . . . . . . . . . . . . . . . . .103.4, Table 103.4FERRULES, CAULKING . . . .701.4, 705.10.3, Table 701.4FINAL INSPECTION, CERTIFICATE . . . .103.5.9.3, 1204.0FIREFIGHTER BREATHING AIRREPLENISHMENT SYSTEMS . . . . . . . . . . . .Appendix F
FITTINGSBranch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .419.2Cleanout . . . . . . . . . . . . . . .707.1–707.2, 707.4, 707.10Dielectric . . . . . . . . . . . . . .605.17.1, 605.17.3, 705.11.2Drainage . . . . . . . . . . . . . . .701.2, 705.0, 706.0, E 67.1Firefighter breathing airreplenishment systems . . . . . . . . . . . . . . . . . . . .F 8.3
Fixture . . . . . . .402.10, 417.0, 421.0, 603.5.20, L 402.0Fuel gas piping . . . . . . . . . . . . . . . .1208.5.4, 1208.5.8,
1208.5.9, 1210.3.1Fuel gas vent . . . . . . . . . . . . . . . . . . . .510.2.7, 510.2.8Gray water . . . . . . . . . . . . . . . . . . . . . . . . . . . .1602.9.2Inlet, for fixture connections . . . . . . . . . . . .704.1–704.2Material of . . . . . . . . . . . . . . . . . . .604.0, 710.4, 1208.5Medical gas and vacuum . . . . . . . . . . . . . . . . . .1315.5Plumbing vent . . . . . . . . . . . . . . . . . . . . . . . . . . . .903.0Prohibited . . . . . . . . . . . . . . .310.0, 604.11, 1208.5.2.4Screwed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310.8Suction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .409.6Supply . . . . . . . . . . . . . . . . . . . . . . . . . . .402.8, L 201.3Threaded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310.8Water piping . . . . . . . . . . . .605.0, 609.1, 610.12, A 6.3
FIXTURES . . . . . . . . . . . . . . . . . . . .(see Plumbing fixtures)Branch
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .208.0Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .704.0Drain
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .208.0Flanged connection . . . . . . . . . . . . . . . . . . . . . . . .402.6Future . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .402.12Supply . . . . . . . . . . . . . . . . . . . . . . .208.0, 601.1, 610.0Unit flow rate . . . . . . . . . . . . . . . . . . . . . . .610.3, 702.0Units . . . . . .208.0, 610.3, 610.7–610.8, 610.10, 702.0,
703.0, 710.5, 717.1, 904.1, 908.1, 908.2.2,910.7, 1014.3.6, 1602.9.1, A 2.1, C 4.0,
C 5.0, C 6.1, C 7.4, C 7.5, C 8.4.2, C 9.2,E 9.1, E 12.1, E 15.1, H 2.1, L 402.3.1,Table 610.3, Table 610.10, Table 702.1,
Table 702.2(a), Table 702.2(b),Table 703.2, Table E 6.1
FLAGPOLING OF VENTS . . . . . . . . . . . . . . . . . . . . . .906.3FLAMMABLE VAPOR OR FUMES
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .208.0FLANGES . . . . . . . . . . . . . . . . . . . . . . . . .402.6, 1208.5.10FLARED JOINTS . . . . . . . . . .605.3.2, 705.10.3, 1208.5.8.3FLASHING . . . . .312.8, 509.6, 509.7.3.1, 701.3, 906.1, 906.5,
906.6, 1105.4, K 103.1.1, L 503.1.1FLOOD HAZARD AREA
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .208.0FLOOD HAZARD AREAS SUBJECT TOHIGH-VELOCITY WAVE ACTION . . . . . . . . .208.0, 301.3.1
FLOOD HAZARD RESISTANCE . . . . . . . . . . . . . . . . .301.3FLOOD LEVEL . . . . . . . . . . .208.0, 608.5, 807.4, 1109.2.1FLOOD-LEVEL RIM . . . .208.0, 603.4.4, 603.5.9, 603.5.14,
801.1, 801.2.2, 905.3, 909.1FLOODED
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .208.0FLOOR DRAINS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .418.0
Backwater valve required . . . . . . . . . . . . . . . . . .1006.1Location . . . . . . . . . . . . . . . . . . . . . . . . . .310.10, 418.3Required . . . . . . . .408.7, 414.3, 704.3, 1017.1, E 45.1Trap location and type . . . . . . . .418.4, 801.2.2, 1006.1Trap seal (primers) . . . . . . . . . . . . . . . . . . . . . . .1007.1
FLOOR FLANGES . . . . . . . . . . . . . . . . . . . . .(see Flanges)FLOOR SINKS . . . . . . . . . . . . . . . . .902.2, 1014.1, 1604.1,
1702.1, B 1.0FLOORS, UNDER SHOWERS . . . . . . . . . . . . .408.7, 408.8FLOW RATES, IN FIXTURE UNITS . . . . . . . . .610.3, 702.0FLUE COLLARS . . . . . .208.0, 509.2.1, 509.5.4.2, 509.5.5,
509.6.1.1, 509.6.2.1, 509.6.4.1,509.7.2, 509.7.4.1, 509.10.2,509.10.5, 509.11, 510.1.1,510.1.3, 510.1.8, 510.1.11,
510.1.12, 510.2.10, 510.2.11,510.2.12, 510.2.16, 510.2.20,
Appendix G
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FLUSH TANKS . . . . . . . .208.0, 402.4, 403.2, 404.1, 413.1,413.2, 413.4, 413.5, 601.1, 610.11,
A 3.1, A 5.3FLUSH VALVES
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .208.0FLUSHOMETER TANKS . . . . . .208.0, 403.2, 413.1, 413.2,
413.4, 603.5.3, 610.11FLUSHOMETER VALVES . . . . .208.0, 413.2, 413.3, 601.1,
603.5.1, 610.10, A 3.1, A 5.3,L 402.2.2, Table 610.10
FLUX . . . . . . . . . .604.1, 605.2.1, 605.3.1, 605.3.4, 705.3.1,705.5.1, 705.5.3, 1318.2, 1318.5,
1318.6, 1318.8, F 11.2FOG DISPOSAL SYSTEMS . . . . . . . . . . . . . .208.0, 1015.0FOOD ESTABLISHMENT
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .208.0FOOD-HANDLING EQUIPMENTAND FIXTURES . . . . . . . . . . . . . . . . . . . . . .801.2, 801.3
FOOD WASTE DISPOSAL UNITS . . . .414.3, 419.0, 714.4,807.4, 1001.1, 1014.1.3
FREEZE PROTECTION . . . . . . . . . . . .312.6, 603.4.7, 609.1,1210.8.2, 1602.9.4, 1702.9.9,
K 104.8, L 504.8FROST OR SNOW CLOSURE . . . . . . . . . . . . . . . . . .906.7FUEL GAS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Chapter 12
Appliance demand . . . . . . . . .1208.4.1, Table 1208.4.1Authority to disconnect . . . . . . . . . . . . . . . . . . . .1206.0Authority to render service . . . . . . . . . . . . . . . . .1205.0Backpressure protection . . . . . . . . . . . . . . . . . . .1208.8Capping or plugging outlets required . . . . . . . . .1206.3Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .208.0Disconnecting appliances . . . . . . . . . . . . . . . . . .1206.1Hourly volume, rating . . . . . . . . . . . . . . . . . . . . .1215.2Inspection . . . . . . . . . . . . . . . . . . . . . . . . .103.5, 1203.0Installation of . . . . . . . . . . . . . . . . . . . . . . . . . . . .1202.0Leaks and defects . . . . . . . . . . . . . . . . .1213.4, 1213.5Liquefied petroleum . . . . .214.0, 1201.0, 1208.5.4.2(C),
1208.5.7.3, 1208.5.9.4,1210.5.1, 1212.0, 1215.1,
E 23.2, E 29.1, E 34.0Meters . . . . . . .1203.4, 1204.3, 1208.6, 1216.4, E 26.0Plans required . . . . . . . . . . . . . . . . . . . . . . . . . . . .101.5Temporary use of . . . . . . . . . . . . . . . . . . . . . . . .1207.0Utility supplying . . . . . . . . . . . . . . . . . . . . . . . . . .1204.3
FUEL GAS PIPINGAccess to meter . . . . . . . . . . . . . . . . . .1208.6.1, E 26.2Appliance connectors . . . . . . . . .203.0, 1211.1, 1211.3,
1211.4, 1211.7Cathodic protection . . . . . . . . . . . . . . . . . . . . . . .E 28.0Concealed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1210.3Defects, cracks, splits, prohibited . . . . .309.2, 1208.5.5Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209.0Drips and sediment traps . . . . . . . . . . . .1210.8, 1211.8Electrical bonding and grounding . . . . . . . . . . .1210.15Inspection and testing . . . . . . . . . . . . . .1203.0, 1213.0
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1210.0Interconnections . . . . . . . . . . . . . . . . . . .1208.3, 1214.0Joints and fittings . . . . . . . . . . . . . . . . . .1206.3, 1208.5.1,
1208.5.4–1208.5.9, 1210.1.3,1211.4.2, 1213.2.1–1213.2.3,
E 35.3Materials . . . . . . . . . . . . . . . . . . . . . . . . .1208.5, E 32.0Piping system
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .209.0Pressure regulators . . . . . . . .1201.1, 1208.7, 1208.8.1,
1210.6, 1210.11, 1216.1.3Purging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1213.6Quick-disconnect devices . . . . .208.0, 1206.3, 1210.9,
1211.3.2, 1211.6Required gas supply . . . . . . . . . . . . . . . .1215.0, E 30.0Service piping
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0Sizing . . . . . . . . . . . . . .1208.4, 1215.1, 1216.0, E 31.0,
Table 1216.2(1) through Table 1216.2(36)Supports . . . . . . . . . . . . . .1208.11.1, 1210.2, 1210.2.4,
E 36.2, Table 1210.2.4.1Underground piping . . .1203.2, 1208.5.2.4, 1208.5.3.3,
1210.1, E 23.2, E 24.1,E 32.3, E 33.2, E 33.3
Unions . . . . . . . . . . . . . . . . . . . . . . . . . . .1211.5, E 26.2Valves . . . . . . . . .1201.1, 1203.3.2, 1208.3.2, 1208.5.1,
1208.5.8.4, 1208.7.5.2, 1208.8.1, 1208.9,1208.10, 1209.0, 1210.2.2.1, 1210.9.1,1210.9.1.1, 1210.11, 1211.3, 1211.4.4,
1211.5, 1211.6, 1211.8, 1213.1.4–1213.1.5,1213.2.5, 1213.5.1, 1213.6.1.3, 1214.2,
E 25.0, E 26.3, E 33.4, E 35.3, E 36.3, E 36.5Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1208.7.5Venting system
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .208.0FUEL GAS VENTS
Clearances . . . . . . . . . . .509.7.3.3– 509.7.3.5, 509.8.2,509.10.3.1, Table 509.7.3(1)
Common vents . . . . . .509.6.4, 509.10.2.2–509.10.2.3,509.10.3.1, 509.10.7.2,
510.2.3–510.2.6, 510.2.8,510.2.11, 510.2.14–510.2.15,
510.2.20–510.2.21, Appendix GConnectors . . . . . . . . .509.10, 509.12, 509.14, 510.1.8,
510.1.10–510.1.13, 510.2–510.2.3,510.2.8, 510.2.17, 510.2.19–510.2.21,
Appendix G, Table 509.7.3,Table 509.10.1
Dampers prohibited . . . . . . . . . . . . . . . . . . . . . . .509.12Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209.0Draft hoods . . . . . . .504.3.1, 506.1.2, 509.2.1, 509.5.3,
509.5.4.2, 509.5.5, 509.6.1, 509.6.2.1,509.6.3.1, 509.6.4.1, 509.7.2, 509.7.3.5,
509.7.4.1, 509.10.1.1–509.10.1.2,509.10.2, 509.10.5, 509.10.12, 509.11,
509.14, 510.1, 510.2, Appendix G
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Engineered systems . . . . . . .509.5.5, 509.6.3, 509.6.4,509.7.4.1, 509.10.2, 509.10.7,510.1.8, 510.1.10, 510.1.16,510.2.16, 510.2.19, 510.2.25
Existing masonry chimneys . . . . . . . . . . . . . . . .509.5.6Inspections . . . . . . . . . . . . . . . . . . . . .503.1, 509.10.10Materials . . . . . . . . . . . . . . . . . . . . . . . .509.4, 509.10.1Mechanical draft systems . . . . .509.3.3, 509.6.2, 509.8,
509.10.3.2, 509.10.6Obstructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.14Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.2Size of . . . . . . . . . . . . . . . . . . . . . . . . . . .509.6.3, 510.0Support . . . . . . . . . . . . . . . . . . . . . . . . .509.6.5, 509.7.5Termination . . . . . . . . . . . . . . . . . .509.6, 509.7.2, 509.8Type required . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.4
FUEL GAS WATER HEATERS . . . . . . . . . . . . . . .Chapter 5Access . . . . . . . . . . . . . . . . .504.3.1, 507.13.2, 507.26,
508.1, 508.3, 508.4, 509.11.5Approval requirements . . . . . . . . . . . . . . . . . . . . .501.1Cleanouts . . . . . . . . . . . . . . . . . . . . .509.5.9, 509.5.6.2Clearances . . . . . .504.3, 507.6, 507.26, 508.1, 508.2.1Combustion air required . . . . . . . . . . . . . . . . . . . .506.0Direct vent . . . .504.0, 506.1, 507.10, 509.2.4, 509.5.10.1,
509.8, 509.8.4, 509.11, 511.0Draft hoods . . . . . . .504.3.1, 506.1.2, 509.2.1, 509.5.3,
509.5.4.2, 509.5.5, 509.6.1,509.6.2.1, 509.6.3.1, 509.6.4.1,509.7.2, 509.7.3.5, 509.7.4.1,509.10.1, 509.10.2, 509.10.5,
509.10.12, 509.11, 510.1.9, 510.2,Appendix G, Table 509.7.3
Indirect-fired . . . . . . . . . . . . . . . . . . . . . .505.4, 603.5.4Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .503.2Installation . . . . . . . . . . . . . . . . . . . . . . . . .504.0, 507.0Location . . . . . . .504.1, 507.12, 507.13, 507.14, 507.15Oil burning or other . . . . . . . . . . . . . . . . . . . . . . . .505.0Permits required . . . . . . . . . . . . . . . . . . . . . . . . . .502.0Pressure-relief valves . . . . . . . . . . .504.4, 504.6, 505.2,
608.2–608.5Protection . . . . . . . . .504.3–504.6, 505.2, 507.2, 507.8,
507.10, 507.13.1, 507.25Temperature and pressure-relief valves . . . .504.6, 505.2Temperature-limiting devices . . . . . . . . . . . . . . . .504.5Vacuum relief valves . . . . . . . . . . . . . . . . .504.6, 608.7Vent required . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.2
– G –GANG OR GROUP SHOWERS . . . . . .209.0, 408.3, 408.8,
L 201.2, L 402.5.2GARBAGE GRINDER . . . .(see Food waste disposal units)GENERAL CARE AREA
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209.0GRADE
Building sewer . . . . . . . . . . . . . . . . . . . . . . . . . . . .718.1
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209.0Horizontal drainage . . . . . . . . . . . . . . . . . . . . . . . .708.0
GRAVITY DRAINAGE REQUIRED . . . . . . . . . . . . . . .709.0GRAVITY SUPPLY TANKS . . . . . . . . . . . . . . . . . . . . .607.0GRAYWATER . . . . . . . . . . . . . . . . . . . . . . .209.0, 1602.8.1,
1602.8.2, 1602.9.3GRAY WATER SYSTEMS . . . . .209.0, 601.2.2.1, 1601.1.1,
1601.6, 1601.7, 1602.0,1602.11, Table 1601.5
GREASE INTERCEPTORS . . . . . . . . . . . . . . . . . . . .1014.0Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209.0Design and construction . . . . . . . . . . .1014.2, 1014.3.3,
1014.3.5–1014.3.6Effluent sampling . . . . . . . . . . . . . . . . . . . . . . .1014.3.5Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . .209.0, 1014.3Hydromechanical . . . . . . . . . . . . . . . . . . .210.0, 1014.2Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1014.3.4Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . .1014.1.2Required . . . . . . . . . . . . . . . . . . .1010.1, 1014.1, H 1.2Sizing . . . . . . . . . . .1014.2.1, 1014.3.6, Table 1014.2.1,
Table 1014.3.6Venting . . . . . . . . . . . . . . . . . . . . . . .1014.1.1, 1014.2.2
GRINDER PUMPS . . . . . . . . . . . . . . . . . . . . . . . . . . .710.12GROUND JOINT CONNECTIONS . . . . . . . . . . . . .705.10.3GROUNDING . . . . . . . . . . . . . . . . . . . . . . . .604.9, 1210.15GROUNDING ELECTRODE
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209.0
– H –HANDHELD SHOWERS . . . . . . . . . . . . . . . . . . . . . . .417.3HANDWASHING FACILITIES . . . . . . . . . . . . . . . . .601.3.2HANDWASHING FIXTURE
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210.0HANGERS . . . . . . . . . . . . . . . . . . . . . . . . . . .(see Supports)HARMFUL WASTES . .(see Waste, detrimental or harmful)HEALTH AND SAFETY . . . . . . . . . . . . . . . .101.3, 101.11.1HEAT EXCHANGERS . . . . . . . . . . .505.4.1, 603.5.4, C 3.0HEAT-FUSION WELD JOINTS . . .210.0, 605.7.1, 605.12.1,
1208.5.9.2HIGH HAZARD . . . . . . . . . . . . . . . . . . . .210.0, Table 603.2HORIZONTAL BRANCH
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210.0HORIZONTAL PIPE
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210.0HORIZONTAL-TO-HORIZONTALDRAINAGE FITTINGS . . . . . . . . . . . . . . . . . . . . . . .706.3
HORIZONTAL-TO-VERTICALDRAINAGE FITTINGS . . . . . . . . . . . . . . . . . . . . . . .706.2
HORSE MEAT AND PET FOODESTABLISHMENTS . . . . . . . . . . . . . . . . . .601.7, 1010.4
HOSE CONNECTIONS . . . . . . . .603.5.7, 603.5.16, 1211.1,1211.3–1211.4
HOT-MOPPED SHOWER PANS . . . . . .(see Shower pans)HOT WATER BOILERS . . . . . . . .505.2, 505.4.1, 603.5.10,
810.1, 810.3, L 603.4.2
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HOT WATER SUPPLY PIPING . . . . .601.1, 602.1, 603.4.5,608.7, 609.1, 609.4,
610.3, 610.12, L 601.0,L 602.0, L 603.0,
Table 610.3, Table A 2.1HOUSE DRAINS . . . . . . . . . . . . . . . . .(see Building sewer)HOUSE SEWERS . . . . . . . . . . . . . . . .(see Building sewer)
– I –IDENTIFICATION
Cast-iron soil pipe . . . . . . . . . . . . . . . . . . . . . . .701.1(6)Copper tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . .604.3Fuel gas piping . . . . . . . . . . . . . . . . .1208.6.4, 1208.7.7Medical gas and vacuum systems . . . . .1322.0, 1326.8.3,
1327.2Piping, fittings, traps, and fixtures . . . . . . . . . . . .301.1.1Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .301.1.1Water, nonpotable and potable . . . . .601.2, 615.0, 1601.4
INCREASERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .316.0INDEPENDENT DRAINAGE SYSTEMS . . . . . . . . . .311.0,
1101.11.2.2INDIRECT-FIRED WATER HEATERS . . . . . . .211.0, 505.4,
603.5.4, 608.7INDIRECT WASTE PIPING
Air breaks or air gaps . . . . . .801.0, 806.1, 807.4, 814.3Approval required . . . . . . . . . . . . . . . . . . . . . . . . .802.0Cleanouts . . . . . . . . . . . . . . . . . . . . . . . .801.2.2, 803.1Connections . . . . . . . . . . .801.2.3, 801.4–801.5, 805.1Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211.0Installation of . . . . . . . . . . . .309.4, 802.1, 803.1, 804.1,
810.0, 811.4, 813.1Maximum length . . . . . . . . . . . . . . . . . . . . . . . . . .803.1Required . . . . . . . . . . . . . . . . . . . . . . . . .801.1, 801.2.2Size of . . . . . . . . . . . . . . . . . . . . . . . . . . . .803.0, 814.2Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . .801.3, 902.2Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .803.1
INDIRECT WASTE RECEPTORSApproval required . . . . . . . . . . . . . . . . . . . . . . . . .802.0Floor sinks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .902.2Food-handling . . . . . . . . . . . . . . . . . . . . . . . . . .801.2.3For clothes washers . . . . . . . . . . . . . . . . . . . . . . .804.0Non-classified apparatus . . . . . . . . . . . . . .801.6, 807.1Prohibited location . . . . . . . . . . . . . . . . . . . . . . . . .804.1Required water supply . . . . . . . . . . . . . . .601.1, 1007.0Strainers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .810.4
INDIRECT WASTESAppliances . . . . . . . . . . . . . . . . . . . . . . . . .414.3, 807.0Aspirators . . . . . . . . . . . . . . . . . . . . . . .603.5.9, 1308.1Chemical wastes . . . . . . . . . . . . . . . . . . . . . . . . . .811.0Clear water wastes . . . . . . . . . . . . . . . . . . . . . . . .812.0Condensate wastes . . . . . . . . . . . . .807.2, 807.3, 814.0Condensers and sumps . . . . . . . . . . . . . . .805.1, 810.0Cooling water . . . . . . . . . . . . . . . . . . . . . . . . . . . .808.0Drinking fountains . . . . . . . . . . . . . . . . . . . . . . . . .809.0Food-handling equipment . . . . . . . . . . . . .418.4, 801.2
Interceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .902.1Steam and hot water . . . . . . . . . . . . . . . . . . . . . . .810.0Sterilizing equipment . . . . . . . . . . .801.5, 806.0, 1306.0Swimming pools . . . . . . . . . . . . . . . . . . . . . . . . . .813.0
INDIVIDUAL VENTS . . . . .211.0, 904.1, 908.2.1, 1014.1.1,C 9.6, Table 703.2
INDUSTRIAL INTERCEPTORSAND SEPARATORS . . . . . . . . . . . . . . . . . . . . . . . .1009.0
INDUSTRIAL WASTESAccess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .811.4Approval required . . . . . . . . . . . . . . . . . . .811.1, 1009.2Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211.0Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . .306.0, 811.7Materials . . . . . . . . . . . . . . . . . . . .811.2, 811.3, 903.2.3Pretreatment . . . . . . . . . . . . . . . . . . . . . . . .306.0, 811.1Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .811.6
INLET FITTINGS FORFIXTURE CONNECTIONS . . . . . . . . . . . . . .704.1–704.2
INSANITARYAdditions, alterations, or repairs . . . . . . . . . . . . .101.11Authority Having Jurisdiction . . . . . . . .102.2.1, 102.2.4,
103.5.8.1, 713.7Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211.0Existing construction . . . . . . . . . . . . . . . . . . . . . . .101.8
INSPECTION AND TESTINGAbandoned cesspools, greaseinterceptors, seepage pits, septictanks, and sewers . . . . . . . . . . . . . . . .722.0, 1014.3.7,
H 11.0, L 303.0Advance notice for . . . . . . . .103.5.7.1, 1203.1, 1326.3Alternate water source systems . . . . .1601.5, 1702.11,
K 101.5, L 501.5Backwater valves . . . . . . . . .710.6, 1101.5.4, 1602.2.4Building sewers . . . . . . . . . . . . . . . . . . . . . . . . . . .723.0Certificate . . . . . . . . . . . . . .103.5.9.3, 1204.0, 1326.13Chimneys and vents . . . . . . . . . . . . . . . .503.1, 509.5.6Concealment of work, prohibitedbefore inspection . . . . . . . . . . . . . . . . . .103.5, 503.0,
1203.2–1203.3,1326.14, 1506.1
Drainage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .712.0Disposal fields . . . . . . . . . . . . . . . . . . . . . . . . . . .H 10.0Engineered design . . . . . . . . . . . .301.4.6, C 1.2, C 2.2Excavations . . . . . . . . . . . . . . . . . . . . . . .314.4, 1203.2Final . . . . . . . . . . . . . . . . . . .103.5.9.3, 503.2, 1203.3.2Firefighter breathing airreplenishment systems . . . . . . . . . . . . . . . . . .1506.0
Firestop protection . . . . . . . . . . . . . . . . . . . . . . .1506.0Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . .1208.5.10.2Fuel gas piping, rough and final . . . . . .1203.3, 1213.0,
E 38.4Grease Interceptors . . . . . . . . . . . . . . . . . . . . .1014.3.4Labor and material for . . . . . . . . . . . . . . . . . . . .103.5.7Mechanical joints . . . . . . . . . . . . . . . . . . . . . . .605.3.3.1Medical gas and vacuum systems . . . .1317.4, 1318.2,
1318.8, 1326.0
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On-site treatment nonpotable systems . . . . . . .1604.12Plumbing systems . . . . . . . . . . . . . . . . . . . . . . . . .103.5Rainwater catchment systems . . . . . . . . . . . . .1702.11Solar water heating systems . . . . . . . . . . . . . . .L 604.2Sumps and receiving tanks . . . . . . . . . . . . . . . . .710.10Tanks . . . . . . . . . . . . . . . . . . . . . . . .1602.9.1, 1602.14,
1702.9.5.3, K 104.4.1.1,L 504.4.1.1
Vent connectors . . . . . . . . . . . . . . . . . . . . . . .509.10.10Water heaters . . . . . . . . . . . . . . . . . . . . . . . . . . . .503.2Water piping . . . . . . . . . . . . . . .103.5.1, 103.5.6, 609.4
INSPECTOR . . . . . . . . . .(see Authority Having Jurisdiction)INSTALLATION OF
Appliances . . . . . . . . . . . . . . . . . .508.0, 509.2.4, 511.0Backflow preventers . . . . . . . . . . . .603.2, 603.4, 603.5,
E 17.1, Table 603.2Bathtubs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .409.6Building sewers . . . . . . . . . . . . . . . .715.0, 717.0, 718.0Chimneys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.5Circuit venting . . . . . . . . . . . . . . . . . . . . . . . . . . . .C 8.0Cleanouts . . . . . . . . . . . . . . .707.0, 719.0, Table 707.1Combustible piping . . . . . . . . . . . . . . . . . . . . . . .1504.0Combustion air ducts . . . . . . . . . . . . . . . . . . . . . .506.0Devices to prevent cross-connections . . . .602.0, 603.0Draft hoods and controls . . . . . . . . . . . . . . . . . . .509.11Drainage piping systems . . . . . . . .312.2, 701.0–704.0,
706.0, 708.0Emergency eyewash and shower equipment . . . .416.3Existing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101.11.2Expansion tanks . . . . . . . . . . . . . . . . . . . . .608.2, 608.3Firefighter breathing airreplenishment systems . . . . . . . . . . . . . . .Appendix F
Fixtures . . . . . . . . . . . . . . . . . . . . . . . . . .402.0, L 402.1Floor drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .418.2FOG disposal systems . . . . . . . . . . . . . . . . . . . .1015.4Fuel gas piping systems . . . . . .1210.0, E 33.0, E 38.0,
E 79.0Fuel gas vents . . . . . . . . . . . . . . . . . . . . . .509.0, 510.0Gray water systems . . . . . . . . . . . . . . . . . . . . . .1602.0Grease interceptors . . . . . . . . . . . . . . . . . . . . . . .1014.0Medical gas and vacuum systems . . . . . . . . . . .1302.0Metal collars . . . . . . . . . . . . . . . . . . .312.12.2–312.12.3Noncombustible piping . . . . . . . . . . . . . . . . . . . .1505.0Oil supply tanks . . . . . . . . . . . . . . . . . . . . . . . .E 36.6.1On-site treated nonpotable water systems . . . . .1604.0Overflows . . . . . . . . . . . . . . . . . . . . . . . . . .404.1, 413.5Pipe joints . . . . . . . . . . . . . . . . . . . . . . . . . .605.0, 705.0Plumbing Vents . . . . . . . . . . . . . . . . . . . . . . .Chapter 9Potable water piping systems . . . .312.2, 609.0, 610.0,
Appendix A, E 15.1,L 601.0
Private sewage disposal systems . . . . . . . .Appendix HProhibited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .602.1Rainwater catchment systems . . . . . . .1702.0, K 104.0,
L 501.1, L 504.0
Residential fire sprinklers . . . . . . . . . . . . . . . . . . .612.1Single-stack vent systems . . . . . . . . . . . . . . . . . . .C 9.0Solar water heating systems . . . . . . . . . . . . . . .L 604.1Urinals . . . . . . . . . . . . . . . . . . . . . . . . .403.3, L 402.3.1Vacuum drainage systems . . . . . . . . . . . . . . . . . .C 7.0Valves . . . . . . .606.2, 606.5, 606.7, 608.4, 608.7, 710.4Ventilating hoods . . . . . . . . . . . . . . . . .509.2.2, 509.3.4Water heaters . . . . . . . . . . . . . . . . .504.0, 505.0, 507.0
INTEGRAL TRAPS . . . . . . . . . . . . . . . .1001.1, Table 702.1INTERCEPTING HOPPERS OR SINKS . . .(see Receptors)INTERCEPTORS
Abandoned . . . . . . . . . . . . . . . . . . . . . . . . . . . .1014.3.7Auto wash racks . . . . . . . . . . . . . . . . . . . . . . . . .1011.0Bottling establishments . . . . . . . . . . . . . . . . . . . .1013.0Cleanouts, location . . . . . . . . . . . . . . . . . . . . . . . .707.7Commercial and industrial laundries . . . . . . . . . .1012.0Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211.0Grease . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1014.0Industrial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1009.0Oil and flammable liquid . . . . . . . . . . . . . . . . . . .1017.0Packing establishments . . . . . . . . . . . . . . . . . . .1010.0Sand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1016.0Slaughterhouses . . . . . . . . . . . . . . . . . . . . . . . . .1010.0Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .902.1
INTERMIXING OF METALS PROHIBITED . . .310.6, 604.1INVERT
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211.0IRON PIPE SIZE (IPS) PIPE . . . . . . . . . . . . . . . . . . . .302.0IRRIGATION FIELD . . . . . . . . . . . . . . . . . .211.0, 1602.11.2ISLAND FIXTURE, VENTING . . . . . . . . . . . . . . . . . . .909.0
– J –JOINTS, FITTINGS, AND CONNECTIONS . . .Table 313.1,
Table 604.1,Table 701.1
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .705.1Asbestos cement pipe . . . . .605.1, 705.2, Table 1102.5Brass pipe . . . . . . . . . . . . . . . . . . . . . . . . .605.2, 705.3Brazed . . . . . . . . . . .212.0, 605.2.1, 605.3.1, 605.17.1,
609.3(2), 705.3.1, 705.5.1, 705.11.1,705.11.2, 1208.5.8.1, 1208.5.8.2,
1210.3.1, 1315.5, 1318.2Cast-iron . . . . . . . . . . .604.5, 701.1(6), 705.4, 705.11.1Caulked . . . . . . . . . . . . . . . . . . . . . . .705.4.1, 705.11.1Compression . . . . . .605.2.2, 605.7.2, 605.8.1, 605.9.1,
605.11.1, 605.12.2, 605.14.1, 605.17.3,705.3.2, 705.4.2, 705.8.1, 705.11.1,
705.11.4, 719.6, 1208.5.9.3,1208.5.8.4(8)
Copper pipe or tubing . . . . . . . . . . . . . .605.3, 605.17.1Copper (DWV) . . . . . . . . . . . .705.5, 705.11.1, 705.11.2CPVC plastic pipe . . . . . . . . . . . . . . . . . . . . . . . . .605.4Dielectric . . . . . . . . . . . . . .605.17.1, 605.17.3, 705.11.2Ductile iron pipe . . . . . . . . . . . . . . . . . . . . . . . . . .605.5
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Elastomeric gasketed . . . . . .605.1.1, 605.2.2, 605.5.1,605.5.2, 605.6.1, 605.13.1,705.1.1, 705.2.1, 705.3.2,705.4.2, 705.6.1, 705.7.1,
705.9.1Expansion . . . . . . . . . . . . . .705.10.2, 1101.4, 1213.2.2Ferrule . . . . . . . . . . . . . . .701.4, 705.10.3, Table 701.4Fixture . . . . . . . . . . . . . . . . . . . . . . .402.2, 402.6, 704.0Flared . . . . . . . . . . . . . . . .605.3.2, 605.17.1, 705.10.3,
1208.5.8.3, 1208.5.8.4(8), 1315.7Fuel gas piping . . . . . . . . . . . . . . . . . . . . . . . . . .1208.5Galvanized steel pipe . . . . . . . . . . . . . . . . .605.6, 705.6Gas and watertight . . . . . . . . . . . . . . . . . . . . .103.5.6.4Ground joints . . . . . . . . . . . . . . . . . . . . . . . . . .705.10.3Heat-fusion joints . . . . . . . . . .210.0, 605.7.1, 605.12.1,
1208.5.9.2Hubless cast-iron . . . . . . . . . . . . . . . . . . . . . . . .705.4.2Increasers and reducers . . . . . . . . . . . . . . . . . . . .316.0Mechanical . . . . . . .605.1.1, 605.2.2, 605.3.3, 605.4.1,
605.5.1, 605.6.1, 605.7.2, 605.8.1,605.10.2, 605.11.1, 605.12.2,605.13.1, 605.14.1, 605.17.3,
705.1.1, 705.2.1, 705.3.2,705.4.2, 705.5.2, 705.6.1,705.7.1, 705.8.1, 705.9.1,
705.11.4, 1208.5.9.3Mechanically formed tee . . . . . . . . . . . . . . . . .605.3.3.1PE plastic pipe/tubing . . . . . . . . . . . . . .605.7, 1208.5.4PE-AL-PE plastic pipe . . . . . . . . . . . . . . . . . . . . . .605.8PE-RT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .605.9PEX plastic tubing . . . . . . . . . . . . . . . . . . . . . . . .605.10PEX-AL-PEX plastic tubing . . . . . . . . . . . . . . . . .605.11Plastic piping, joints, and fittings . . . .705.11.3, 1208.5.9,
1210.1.7.1Plastic vent joints . . . . . . . . . . . . . .509.4.2, 1208.5.4.1Polypropylene (PP) piping . . . . . . . . . . . . . . . . . .605.12Pressed . . . . . . . . . .218.0, 605.2.2, 605.3.3, 605.3.3.2,
605.14.1, 605.17.1, 705.8.1Prohibited fittings and practices . . . . . . . .310.0, 315.2,
604.11, 605.7.2,1315.7, 1318.8
Push fit fittings . . . . . . . . . . . .218.0, 605.3.3, 605.3.3.3,605.4.1
Push-on . . . . . . . . . . . . . . . .605.5.2, 605.13.1, 705.1.1,705.7.1, 705.9.1
PVC plastic pipe . . . . . . . . . . . .605.13, 705.7, 705.10.4Screwed . . . . . . . . . . . . . . . . . . . . . . . . .310.8, 701.2.1Slip . . . . . . . . . . . . . . . . . . . . .221.0, 402.11, 509.10.9,
605.15, 606.5, 705.10.1,705.10.3, 1003.2
Soldered . . . . . . . . . . . .212.0, 309.2, 402.6, 605.3.3.1,605.3.4, 605.17.1, 705.5.3,
705.11.1, 705.11.2,1315.9, A 6.3
Solvent cement plastic pipe . . .402.6, 605.4.2, 605.13.2,705.1.2, 705.1.3, 705.7.2,
705.7.3, 705.10.4Stainless steel pipe . . . . . . . . . . . . . .605.14, 605.17.3,
705.8, 705.11.4Threaded . . . . . . . . . . . . . . . .605.2.3, 605.3.5, 605.4.3,
605.6.2, 605.12.3, 605.13.3,605.17.1, 705.1.3, 705.3.3,705.5.4, 705.6.2, 705.7.3,
705.11.2, 1208.5.7, 1208.5.8,1208.5.8.4, 1210.1.3,
1315.7, A 6.3Tightness . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103.5.6.4Transition . . . . . . . . . . . . . . . . . . . . . . . . . . . . .705.10.4Unions . . . . . . . . . . .315.1, 605.16, 605.17.1, 605.17.3,
609.5, 710.6, 1101.5.2, 1211.5,1315.7, 1602.9.1, E 26.2
Various materials . . . . . . . . . . . . . . . . . .605.17, 705.11Vitrified clay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .705.9Welded . . . . . . . .212.0, 605.14.2, 705.8.2, 1208.5.8.1,
1210.1.3, 1210.3.1, 1210.5, 1213.3,1315.5, F 11.0
– K –KITCHEN SINKS, PROHIBITED TYPES . . . . . . . . . .406.3
– L –LABELED . . . . .214.0, 301.1, 509.5.4.3, 1017.2, 1310.3.1,
1315.3, 1317.10, 1319.3.1, 1319.4.2,1319.5.3, 1322.2, 1322.5, 1604.7,1702.9.8, C 3.2, E 21.2, K 101.4.1,
K 104.7, L 501.4.1, L 504.7LABOR FOR TESTS . . . . . . . . . . . . . . . . . . . . . . . .103.5.7LABORATORIES, CHEMICAL . . . . . . . . . . . . . . . . . .811.8LAUNDRY TUBS . . . . . . . . . . . . . . . .405.2, 1001.1, 1003.1LAVATORIES . . . .214.0, 403.4, 405.2, 421.2, 422.9, 601.1,
1001.1, 1003.1, 1602.8.2.1, B 1.0, C 4.1,E 46.0, L 602.5, L 603.4.3, L 603.4.4.4
LAVATORIES IN SETS . . . . . . . . . . . . . . . . . .214.0, 1001.1LAWN SPRINKLERS . . . . . . . . . . . . . . . . . . .603.5.6, A 2.2LEAD
Bends and traps . . . . . . . . . . . . . . . .701.3(3), 906.6(3)Caulked joints . . . . . . . . . . . . . . . . . . . . . . . . . . .705.4.1Closet rings . . . . . . . . . . . . . . . . . . . . . . . . . . . .402.6.1Flashing . . . . . . . . . . . . . . . . . . . . . . . .312.8, 1105.4.1,
K 103.1.1, L 503.1.1Pipe and fittings . . . . . . .604.11, 811.2, 1003.1, 1101.3Roof drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1105.1Sheet . . . . . . . . . . . . . . . . . . . . . . . .401.2, 701.3, 906.6Shower receptors . . . . . . . . . . . . . . . . . . . . . . . . .408.7
LEADERS . . . . . . . . . . . . . . . .214.0, 1101.11.1, 1101.12.1,1102.2, 1103.0, 1104.0, 1105.2,1105.3, 1106.0, 1109.2, 1702.6,
1702.7.2, 1702.9.7, K 103.2,K 104.6,K 104.12, L 503.2, L 504.6,
L 504.12
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LEAKS, FUEL GAS PIPING . . . . . . . . . . . . .1213.4, 1213.5LENGTH
Connectors . . . . . . . . . . . . . . . . . . . . . . .604.12, 604.13Developed
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .206.0Drainage piping . . . . . . . . . . . . . . . .703.0, Table 703.2Fuel gas piping . . . . . . . . . . . . . . . . . . . . . . . . . .1216.0Vent piping . . . . . . . . . . . . . . . . . . . .904.0, Table 703.2Water piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . .610.0
LIMITED-DENSITY OWNER-BUILTRURAL DWELLING
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .214.0LIQUEFIED PETROLEUMGAS (LPG) . . . . . . . . . . . . .214.0, 1201.0, 1208.5.4.2(C),
1208.5.7.3, 1208.5.9.4, 1210.5.1,1212.0, 1215.1, E 23.2,
E 29.1, E 34.0LIQUID WASTES . . . . . . . . . . . .214.0, 303.0, 304.1, 710.2,
811.1, 1006.1, 1009.1, 1013.1,H 1.2, H 7.1, H 9.1, L 302.0
LISTED . . . . . . . . . . .214.0, 301.1, 402.6.2, 403.3.1, 409.6,504.1(1), 504.3, 504.4, 504.5, 505.2,506.9(8), 507.13, 507.21(2), 507.25,509.1.1, 509.2.1, 509.2.4, 509.3.3,509.4.1, 509.4.3, 509.5.1, 509.5.3,
509.5.4.3, 509.5.5, 509.5.7.2, 509.5.7.3,509.5.8, 509.6, 509.6.2.4, 509.6.3.1,509.6.4.1, 509.7.3.5, 509.8, 509.10.1,509.10.5, 509.10.12, 509.11, 509.11.1,509.11.3, 509.13, 509.14, 510.1, 510.2,511.1, 601.1, 601.2.3, 603.5.5, 603.5.7,604.4, 605.1.1, 605.4.2, 605.6.1, 605.9,608.3, 608.5, 609.10.1, 610.4, 701.1(6),705.2.1, 705.10.4, 705.11, 710.6, 710.13,807.4, 1003.2, 1014.2, 1206.3, 1208.4.2,
1208.5.3.4, 1208.7.2, 1208.7.5.1,1208.7.5.2(2), 1208.10, 1209.1,
1210.1.6(2), 1210.3.1(3), 1210.9(6),1210.9.1, 1211.1, 1211.2, 1211.3, 1211.5,1211.6, 1211.7, 1213.6.1.4, 1213.6.2.1(4),
1213.6.2.2, 1315.6(2), 1601.2, 1604.7,1702.9.6, 1702.9.8, C 7.3, E 16.1,
E 17.1, E 18.1, E 21.2, E 25.1,E 35.3(10), E 36.1, E 36.2, E 55.1,
E 64.1, E 67.1, E 77.1, E 78.1,Appendix G, H 6.2, K 101.4.1, K 104.5,K 104.7, L 402.2.1, L 402.3, L 402.4.1,L 402.5.1, L 501.4.1, L 504.5, L 504.7,
Table 509.4, Table 509.7.3LISTING AGENCY . . . . . . . . . . . . . . . . . . . . . .214.0, 301.1LOCAL AUTHORITY TO APPROVE
CPVC PIPE, RESIDENTIAL . . . . . . . . . . . . . . . . .604.1.1LOCATION OF
Backwater valves . . . . . . . .710.1, 710.3, 710.4, 710.6,1006.0, 1101.5.4, 1602.2.4,
1602.9.1(8)
Fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . .308.0, 402.0Fuel gas meters . . . . . . . . . . . . . . . . . .1208.6.1, E 26.2Fuel gas valves . . . . . . . . .1208.8, 1209.1, 1210.2.2.1,
1210.9.1.1, 1210.11–1210.11.3,1211.3, 1211.4.4, 1211.5, 1211.8
Industrial interceptors and separators . . .1009.1–1009.3,1009.5
Medical gas and vacuum system valves . . . . . . .1319.0Plumbing or sewer on lot . . . . . . . . . . . . . .307.0, 721.1,
Table 721.1Pressure-relief, regulator,or check valves . . . . . . . . . . .504.6, 608.0, 710.12.1,
710.13.2, 1208.7.3,1320.1–1320.2, E 18.1, F 5.8
Private sewage disposal system . . . . . . . . . . . . . .H 1.7Shutoff valves . . . . . . . . .504.6, 606.0, 608.4, 710.12.1,
710.13.2, 1210.2.2.1, 1210.9.1.1,1210.11, 1211.3, 1211.4.4, 1211.5,
1211.6, 1319.2–1319.6, E 16.1,E 25.1, E 26.3, E 33.4,
E 35.3, L 402.3.1Temperature relief valves . . . . . . . . . . . . . .504.6, 608.3Vent terminals . . . . . . . . . .509.3.3.5, 509.8.1, 509.8.2,
509.8.5, 906.0Water heaters . . . . . . . . . . .504.1, 507.2, 507.4, 507.8,
507.10, 507.12–507.15,507.25–507.26, 508.0
LOTDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .214.0
LOW HAZARD . . . . . . . . . . . . . . . . . . . .214.0, Table 603.2LOW VOC CEMENT
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .214.0LOW VOC ONE-STEP CEMENT
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .214.0LOW VOC PRIMER
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .214.0LUBRICANTS . . . . . . . .605.1.1, 605.5.1, 605.5.2, 705.2.1,
705.8.2, 1310.1.1, 1318.3
– M –MACERATING TOILET SYSTEMS . . . . . . . .215.0, 710.13MAIN
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .215.0MAINTENANCE . . . . . . .101.7, 101.11.2, 101.11.4, 1007.1,
1009.6, 1014.1.2, 1014.3.4.3, 1017.1,1101.5.4, 1201.2, 1208.6.1, 1210.1,
1211.5, 1211.9, 1302.2, 1319.2, 1324.1,1324.2(3), 1325.1, 1325.2(3), 1601.5,
1601.6, 1602.2.4, 1602.15, C 7.2,H 1.10, K 101.5, K 101.6,
L 201.5, L 501.5, L 501.6, L 604.0MALLEABLE IRON . . . . . . . . . . . . . .310.8, 402.6.1, 604.6,
1208.5.8.4, F 8.4, Table 604.1MANUFACTURED/MOBILEHOME PARKS ANDRECREATIONAL VEHICLE PARKS . . . . . . .Appendix E
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MATERIALSAlternate . . . . . . . . . . . . . . . . . . . . .301.2, C 1.5, H 5.13Approval required . . . . . . . . . . . . . . . . . . . . . . . . .301.1Backwater, gate, or ball valves . . . . . . . . . .710.4, 710.6Building drains . . . . . . . . . . . . . . . . .701.0, Table 701.1Building sewers . . . . . . . . . . . . . . . .715.0, Table 701.1Cesspools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 8.0Cleanouts . . . . . . . . . . . . . . . . . . . . . . . . . .707.1, 707.2Condensers or intercepting tanks . . . . . . . . . . . . .810.2Disposal fields . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 6.0Drainage piping, joints, and fittings . . . . . .701.0, 705.0,
Table 701.1Fuel gas piping, joints, and fittings . . . . . . . . . . .1208.5Marking of . . . . . . . . . . . . . . .301.1.1, 509.6.6, 509.7.6,
601.2, 604.3, 710.6, 716.0,903.2.4, 1315.4, 1602.12,
1604.8, 1702.8, 1702.9.5.7,F 5.6, F 6.4, F 7.5, F 9.2,
F 9.3Medical gas and vacuum . . . . . . . . . . . . . . . . . .1315.0Nonpotable water pipingand components . . . . . . . . . .1601.8, 1602.9, 1604.6,
1702.7, L 403.0,L 501.0, L 601.1
Potable water piping,joints, and fittings . . . . . . . . . . . .604.0, 605.0, K 101.8,
K 103.0, L 501.4, L 501.8,L 503.0, L 601.1
Seepage pits . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 7.0Septic tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 5.0Showers . . . . . . . . . . . . . . . . . . . . . . . . . . .408.1, 408.7Soil and waste pipes . . . . . . . . . . . . .701.0, Table 701.1Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .301.1.2Sumps or receiving tanks . . . . . . . . . . . . . .710.8, 810.2Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1003.1Valves . . . . . . . . . . . . . . . . . . . . . . .310.6, 606.1, 710.4Vents (DWV) . . . . . . . . . . . . .701.0, 903.0, Table 701.1Vents (fuel gas) . . . . . . . . . . . . . . . . .509.4, Table 509.4
MAYDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .215.0
MEAT AND POULTRYPROCESSING PLANTS . . . .601.4, 717.2, 724.0, 1010.2
MEAT PACKING AND SLAUGHTERHOUSES . . . . .1010.0MEDICAL GAS AND VACUUM SYSTEMS . . . .Chapter 13
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1323.0Aspirators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1308.0Cleaning . . . . . . . . . . . . . . . . . . . . . . . . .1315.2, 1316.0Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .215.0General requirements . . . . . . . . . . . . . . . . . . . . .1310.0Installation requirements . . . . . . . . . . . .1302.0, 1317.0Joints . . . . . . . . . . . . . . . . . . . . .1315.7, 1315.9, 1318.0Labeling and identification . . . . . . . . . . . . . . . . . .1322.0Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1315.0Medical air systems . . . . . . . . . . . . . . . . . . . . . . .1324.0Medical vacuum pump systems . . . . . . . . . . . . .1325.0
Pipe sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1313.0Plan review . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1311.0Pressure-regulating equipment . . . . . . . . . . . . . .1320.0Station outlets/inlets . . . . . . . . . . . . . . . . . . . . . .1321.0Sterilizers . . . . . . . . . . . . . . . . . . . . . . . .1306.0, 1307.0System certification . . . . . . . . . . . . . . . . . . . . . . .1327.0Testing and inspection . . . . . . . . . . . . . . . . . . . . .1326.0Valves . . . . . . . . . . . . . . . . . . . .1315.8, 1319.0, 1320.0
METALS, INTERMIXING PROHIBITED . . . . . .310.6, 604.1METERED FAUCETS . . . . . . . . . . . . . . . . . . . . . . . . .403.4METERS
Fuel gas . . . . . . . .1204.3, 1208.3, 1208.6, 1210.11.1.1,1214.1, E 26.0, E 36.3
Water . . . . . . . . . . . . . . . . . . . . . . .610.0, A 1.2, L 404.0MINIMUM STANDARDS . . . . . . . . . . . . . . . . . . . . . . .301.1MULCH
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .215.0MULCH BASIN . . . . . . . . . . .215.0, 1602.2, 1602.10, 1602.11
– N –NATURAL GAS, SPECIFIC GRAVITY . . . . . . . . . . .1215.1NITROGEN, NF
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .216.0NONMETALLIC GAS HOSECONNECTORS . . . . . . . . . . . .1211.1(5), 1211.3, 1317.5
NONCOMBUSTIBLE PIPING INSTALLATIONS . . . .1505.0NONCORROSIVE BOLTS . . . . . . . . . . . . . . . .402.3, 402.4NONPOTABLE WATER
Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . .601.2Reuse systems . . . . . . . . . . . . .Chapter 16, Chapter 17Sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .610.13(6)Unlawful connections to . . . . . . . . . . . .603.5.11, E 58.1
NONWATER SUPPLIED URINALS . . . . . . . . . . .1003.1(2)NONWATER URINALS . . . . . . . . .216.0, 403.3.1, L 402.3.1NOTCHING . . . . . . . . . . . . . . . . . . . . . . . . . . .312.2, 312.11NOTICE OF INSPECTION . . . . . . . . . . . .103.5.7.1, 1203.1NUISANCE . . . . . . . . . . . . .101.8, 101.11.1, 216.0, 509.8.3,
713.7, 714.5, 1101.1
– O –OBSTRUCTIONSTO FLOW . . . . .310.5, 315.2, 509.14, 605.3.3.1, 1210.12
OFFSETS . . . . . .217.0, 402.6.3, 509.6.1, 510.1.2, 510.1.6,510.2.4, 510.2.15, 510.2.18, 706.4,
905.3, 910.5, 1101.11.2.2(B), 1315.5,C 5.4, C 5.5, C 6.4, C 9.7
OIL AND FLAMMABLE INTERCEPTORS . . . . . . . .1017.0ONE- AND TWO-FAMILY DWELLING . . . . . . . . . . . . . .301.5ON-SITE TREATEDNONPOTABLE WATER SYSTEMS . . . . . .217.0, 601.2.2.1
1601.1.1, 1604.0OPEN TRENCH WORK . . . . . . . . . . . . . . . . . . . . . . . .314.3OPENING, EFFECTIVE
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .207.0OSHPD 3SE
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .217.0
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OVERFLOWSAppliances and equipment . . . . . . .1702.9.3.1, E 62.1,
K 104.1.1, L 504.1.1Drain pipes . . . . . . . . . . . . . . . . . . . . . . . . . .1602.9.1(6)Drains . . . . . . . . . . . . . . . . . . . . . . .1105.2, 1602.9.1(5),
1702.9.5.5, K 104.4.2,K 104.6, L 504.4.2,
L 504.6Flood-level rim . . . . . . . . . . . . . .603.5.1, 603.5.2, 808.1Indirect waste connectors . . . . . . . . . . . . . . .801.4, 805.1Interceptors . . . . . . . . . . . . . . . . . . . . . . . . .1017.1, 1017.2Plumbing fixtures . . . . .404.0, 405.2, 409.3, 413.5, 807.2Tanks . . . . . . . . . . . . . . . . . . . . . . . .607.0, 1602.9.1(8)
OXYGEN, FUEL GAS . . . . . . . . . . . . . . . .1208.8, 1213.1.6
– P –PACKING ESTABLISHMENTS, GREASEINTERCEPTORS REQUIRED . . . . . . . . . . . . . . . .1010.0
PATIENT CARE AREADefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0
PE-RT TUBING . . . . . . . . . . . . . . . . . . . . . . . . .218.0, 605.9PENALTIES . . . . . . . . . . . . . . . . . . . . . . . .102.5, 103.5.9.1PENETRATION FIRESTOP SYSTEMS . . . . .218.0, 1504.3,
1505.3PERCOLATION TESTS . . . . . . . . . . .1602.7(4), 1602.10.2,
H 4.0, H 12.1(3)PERMITS, REQUIRED . . . . . .103.1, 103.4.3, 103.5, 103.6,
502.1, 1601.3, 1601.6,1702.2.1, 1702.3, E 21.1,
K 101.3, L 501.3PHOTOGRAPHIC ROOMS, WASTE FROM . . . . . . . .811.8PIPING
Bends . . . . . . . . . . . . . . . .605.7.2, 609.1, 1210.7, F 8.2Building supply . . . . .602.2, 604.1, 604.8, 604.9, 609.1,
609.6, 609.7, 609.8, 610.8, 610.9,A 1.2, A 2.2, A 4.0, A 5.0,A 6.2, C 4.2, Table 604.1,
Table 610.4Cast-iron . . . . . . . . .705.4, 705.11.1, 707.1, 1208.5.2.1Copper . . . . . . . .302.1, 312.9, 605.3, 605.17.1, 608.5,
705.5, 705.11.1, 705.11.2, 1102.1.1Drainage . . . . . . . . . .316.1, 402.6, 703.0, 704.2, 706.1,
707.4, 707.6, 708.0, 710.2, 710.4,711.1, 713.1, 713.2, 718.3, 720.1,801.1, 803.1, 903.2, 904.1, 905.1,
905.2, 908.1, 1014.1.2, C 6.1,E 6.1, E 9.2
Drainage, horizontal, grade of . . . . . . . . . . . . . . . .708.0Embedded in masonry or concrete . . . . . . . . . . . .312.2Galvanized steel . . . . .605.6, 701.1(1), 705.6, 1102.1.1Fuel gas . . . . . . . . . . . . . . . .Chapter 12, E 31.0–E 33.0Hangers and supports . . . . . . . .313.0, 313.8, 1210.2.4,
1317.0, Table 313.1,Table 1210.2.4.1
Hot water . . . . . . . . . . . .312.1, 610.0, L 601.0–L 603.0
Improper location . . . . . . . . . . . . . . . . . . . . . . . . .308.0Indirect waste . . . . . . . .211.0, 801.1, 801.2.1–801.2.3,
801.5–801.6, 802.1, 803.1, 804.1,807.1, 814.1–814.3, 902.1–902.2,
1306.2Joints . . . . . . . . . . . .103.5.6.4, 315.0, 605.0, 609.3(2),
705.0, 1208.5, 1213.2.1, 1315.7,1315.9, 1317.4, 1318.0, E 7.2, F 11.1
Medical gas and vacuum . . . . .1315.4, 1316.0, 1317.2,1317.6, 1317.9,1317.10, 1322.1,1322.2, 1326.8.2
Nonpotable water . . . . . . . .601.2, 603.5.11, 1604.10.4,1604.12.2.3, 1604.13
Plumbing vent . . . . . . . . . .310.2, 310.4, 710.10, 811.2,Chapter 9, 1002.1, 1002.4,
1102.1–1102.3, 1104.1,1602.9.2, B 1.0, C 6.1, C 6.3,
C 8.2, C 9.6, Table 701.1Potable water . . . .601.2, 602.1, 603.2, 603.4.4, 604.1,
604.5, 604.11, 610.0, 1604.10.4,1604.12.1, 1604.12.2.3(2), 1702.6,1702.11.2.3, K 104.13, L 504.13
Protection from freezing . . . . .312.6, 1210.1.4, 1317.3,1702.9.9
Protection required . . . . . .310.11, 312.0, 314.4, 609.3,1210.1, 1303.2, 1308.1, 1317.1,
1317.3, 1317.4, 1504.1,1505.1, E 28.0
Protectively coated . . . . . . . . . . . . . . . . . .312.5, E 32.2Reaming . . . . . . . . . . .309.3, 605.2.1, 605.3.1–605.3.4,
609.1, 701.2.1, 705.3.1, 705.5.1,705.5.3, 903.3, 1208.5.5
Size of . . . . . . . . . .302.0, 610.0, 703.0, 904.0, 1101.7,1101.11, 1215.0, 1216.0, 1313.0,1604.13, 1702.6, C 5.0, C 6.0,
C 9.9, Appendix D, E 9.0,E 31.0, K 104.13, L 504.13
Soil . . . . . . . . . . . .221.0, 310.2, 310.4, 312.6, 402.6.1,402.6.3, 701.1(6), 722.2, 905.5,
1002.4, 1102.1.1, H 11.2Special wastes . . . . . . . . . . . . . . . . . . . . . .221.0, 811.0Stainless steel . . . . . .605.14, 605.17.3, 701.1(5), 705.8,
705.11.4, 903.1, 1101.3, 1102.1.1Storm drainage . . . . . . .1101.3, 1101.5, 1101.8, 1102.1,
1102.2–1102.5, 1104.1, 1104.2,Table 1101.7, Table 1101.11,
Table 1102.5Threads . . . . . . . . . . . . . . . . . .310.8, 701.2.2, 1208.5.7Underground . . . . . . . . . . . .313.3, 315.1, 604.2, 604.9,
609.1, 609.8, 701.1(1), 701.1(5),903.1(1), 903.2.1, 1101.3, 1102.1.1,1102.3–1102.5, 1203.2, 1208.5.2.4,1208.5.3.3, 1210.1, 1317.1, 1317.4,1602.9.2, 1604.10.4, E 5.1, E 23.2,E 24.1, E 32.3, E 33.3, Table 701.1
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Waste . . . . . . . . . . . .225.0, 310.4, 312.6, 418.4, 722.2,811.2, 905.5, 908.1.1, 910.4, 910.5,
1002.4, 1009.7, 1104.1, B 1.0, H 11.2,Table 1014.2.1
Water distribution . . . . . . .225.0, 403.3.1, 604.8, 608.2,610.2, C 7.6, E 15.0, L 402.3.1,
L 602.5, L 602.7, L 603.4.3,L 603.4.4.4, Table 604.1,Table 610.3, Table A 2.1
Wrapping . . . . . . . . .609.3(1), 1210.1.3, 1210.2, E 32.2PITS, SEEPAGE . . . . . . . . . . . . . . . . . .221.0, 714.3, 716.1,
722.2–722.4, Appendix HPLANS REQUIRED . . . .101.5, 811.1, 910.2, 1311.1, 1604.2,
1702.2, C 7.1, E 3.0, H 5.1,H 10.1, K 101.3.1, L 501.3.1
PLASTIC PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . .310.11PLUGGING, FIXTURE OUTLETS . . . . . . . . . . . . . .101.6.2PLUGS, CAPS, CLEANOUT . . . . . . . . . . . . . .707.1–707.2PLUMBING
Additions and alterations . . . . . . . . . . . . . . . . . . . .101.9Appliances . . . . . . . .218.0, 304.1, 310.5, 313.5, 417.2,
603.4.6, 606.5, 801.6, 803.1, 806.1,807.0, 808.1, L 302.2, L 602.5,
L 603.4.3, Table 610.3, Table 702.1,Table A 2.1
Appurtenances . . . . . . . . .218.0, 304.1, 313.5, 603.4.6,L 602.5, L 603.4.3, Table 610.3,
Table 702.1, Table A 2.1Connected to sewer or privatedisposal systems . . . . . . . . . . .304.1, 713.1, L 302.2
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0Inspection of . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103.5Official . . . . . . . . . . .(see Authority Having Jurisdiction)Repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101.6System
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0Tests . . . . . . . . . . . . . . . . . . . . . . . . .103.5.6, 103.5.8.1Uncovered for inspection . . . . . . . . . . . . . . . . . .103.5.4Vent
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0Vent system
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0PLUMBING FIXTURES
Accessibility . . . . . . .402.1, 402.7, 408.5, 408.6, 413.3,416.4, 421.1, 422.4, L 402.5.2
Alternate materials . . . . . . . . . . . . . . . . . . .301.2, 407.3Back-to-back . . . . . . . . . . . . . . . . . . . . . . . . . . . . .704.2Below curb or sewer level . . . . . . . . . . . . .710.1–710.2Clearance from wall, toilet, urinal . . . . . . . . . . . . .402.5Connections, drainage . . . . . . . . . .304.1, 407.1, 408.4,
409.2, 415.3, 416.5,419.2, 420.3, 704.0
Control valves . . . . .408.3, 408.9, 601.1, 606.5–606.7,1303.1, 1604.9
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0
Distance from traps . . . . .1001.1, 1002.2, Table 1002.2Floor drains . . . . . .408.7, 414.3, 418.0, 704.3, 801.2.2,
908.2, 1003.1, 1006.0, 1007.1, 1014.1,1014.3.2, 1016.1, 1017.1, 1101.10,1604.1, 1702.1, B 4.0, B 5.1, E 45.1
Improper location of . . . . . . . . . . . . . . . . . . . . . . .308.0Indirect wastes . . . . . . . . . . . . . . . . . . . . . . . . . . .804.1Installation of . . . . . . . . . .402.0, 403.3.1, 403.4, 406.3,
408.3, 408.7, 409.3, 409.6,413.2–413.3, 413.5, 415.4,
416.3, 418.3Islands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .909.0Joints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .402.2Material of . . . . . . . . . . . . . .401.0, 407.2–407.4, 408.7Minimum number . . . . . . . . . . . . . . . . . . . . . . . . .422.0Must be connected to sewer . . . . . . . . . . .304.1, 713.1Must be provided with trap . . . . . . . . . . . . . . . . .1001.1Overflows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .404.0Prohibited . . . . . . . . . . . . . . . . . . . .310.5, 406.0, 910.7Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .401.1Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . .402.5, 402.6Size of waste for . . . . . . . . . . . . . . . . . . . .702.0, 703.0,
Table 702.1, Table 703.2Special fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . .407.0Standards . . . . .401.1, 408.1, 409.1, 410.1, 413.1, 415.1,
416.1, 417.1–417.4, 418.1, 420.1Strainers and connections . . . . . . . . . . . . . . . . . . .405.0Supply and waste connections . . . .405.2, 408.4, 409.2,
415.3, 416.5, 419.2,420.3
Supply fittings . . . . . . . . . . . . . . . . . . . . . . . . . . . .402.8Units . . . . . . . . . . . .610.3, 610.7–610.10, 702.0, 703.0,
C 7.4, C 7.5, Table 610.4, Table 610.10,Table 702.1, Table 702.2(a), Table 702.2(b),
Table 703.2, Table A 2.1, Table C 4.1,Table C 4.1(1)
Water supply required . . . . . . . . . . . . . . . . . . . . . .601.1POLLUTION . . . . . . . . . . . . . . . . . . . .218.0, 603.1, 603.5.5,
714.5, Table 603.2POLY (VINYL CHLORIDE)(PVC) PIPE . . .218.0, 310.8, 402.6, 402.6.1, 604.9, 605.13,
701.1(2), 705.7, 705.10.4, 707.1, 903.1(2),1003.1, 1101.3, 1102.1.1, 1208.5.4.1,
H 6.1, Table 313.1, Table 604.1, Table 701.1,Table 1102.5
POLYETHYLENE (PE)PIPE OR TUBING . . . . . . .218.0, 604.9, 605.7, 1208.5.4,
H 6.1, Table 604.1,Table 701.1, Table 1102.5
POLYETHYLENE-ALUMINUM-POLYETHYLENE(PE-AL-PE) PIPE OR TUBING . . . .218.0, 604.9, 604.13,
605.8, Table 313.1,Table 604.1
POLYPROPYLENE (PP) PIPE . . . . . .218.0, 604.9, 605.12,811.2, 1003.1, Table 313.1,
Table 604.1
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POLYVINYLIDENEFLUORIDE (PVDF) PIPE . . . . . . . . . .218.0, 604.9, 811.2
POTABLE RAINWATERCATCHMENT SYSTEMS . . . . . . . . .Appendix K, L 501.0,
L 502.0, L 503.4, L 504.13POTABLE WATER
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1316.0Connections . . . . . . . . . . . . .603.4.4, 603.5.6–603.5.7,
603.5.10–603.5.12, 603.5.21,801.4, 1308.1
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0Devices or assemblies . . . . . . . . . . . . . . . . . . . . .603.2Disinfection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .609.9Heat transfer medium . . . . . . . . . . . . . . .505.4.1, C 3.2Heating . . . . . . . . . . . . . . . . . . . . . . . . . .501.1, L 601.1Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . .601.2Joints and fittings . . . . . . . . . . . . . .604.5, 604.11, 605.0Materials . . . . . . . . . . . . . . . . . . . . . .604.1, Table 604.1Outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .603.5.18Protection of . . . . . . . . . . . . . . . . . . . . . . . .602.0, 603.0Sizing piping . . . . . . . . . . . . . . . . . . .610.0, Appendix ASupply required . . . . . . . . . . . . . . . . . . . . .601.1, E 11.1Tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . .607.0, 608.2Unlawful connection to . . . . . . . .602.0, 603.5.11, 1602.3,
1604.4, 1702.4, K 102.2,L 502.2, E 58.1
Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .606.0PRE-RINSE SPRAY VALVES . . . . . . . . . . . .403.5, L 201.8PRESSED FITTINGS . . . .218.0, 605.2.2, 605.3.3, 605.3.3.2,
605.14.1, 605.17.1, 705.8.1PRESSURE DRAINAGE CONNECTIONS . . . . . . . . .805.0PRESSURE, EXCESSIVE, WATER . . . . . . . . . . . . . .608.2PRESSURE-LOCK-TYPE CONNECTION
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0PRESSURE LOSSES, WATER . . . . . . . . . . . . . . . . . .610.2PRESSURE REGULATORS
Firefighter breathing air replenishment systems . . . . . . . . . . . . . . . . . . . .F 5.8
Fuel gas . . . . . . . . .507.20, 507.21, 507.22(5), 1201.1,1208.8.1(4), 1210.6, 1210.11, 1216.1.3
Medical gas and vacuum . . . . . . . . . . . .1318.7, 1320.2Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .608.2
PRESSURE-RELIEF VALVESFirefighter breathing air replenishment systems . . . . . . . . .F 5.7, F 5.8, F 7.3
Medical gas and vacuum . . . .1320.2, 1324.7(3), 1326.7,1326.9, 1326.10
Water . . . . . . . . . . . .504.4, 504.6, 505.2, 608.3–608.6,E 18.0, E 19.1
PRIMARY SETTLING TANKS . . . . . . . . . . . . . . . . . . .902.1PRIVATE OR PRIVATE USE
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0PRIVATE SEWAGE
Capacity of system . . . . . . . . . . . . . .H 1.6, H 2.0, H 7.1Construction . . . . . . . . . . . . . .H 5.3, H 6.9, H 7.3, H 8.3
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0Design . . . . . . . . . . . .H 1.5, H 5.2, H 5.11, H 9.4, H 9.7Disposal systems . . . . . . . . . .218.0, 713.2, Appendix HGeneral requirements . . . . . . . . . . . . . . . . . . . . . .H 1.1Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103.5Location . . . . . . .721.0, H 1.7, Table 721.1, Table H 1.7
PRIVATE WATER SUPPLY . . . . . . . . .602.2, 602.4, E 11.1PROHIBITED
Appliances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310.5Concealed gas piping . . .1210.3.2, 1211.3.1, 1211.4.4,
1317.5Concealment of defects . . . . . .309.2, 1213.4.2, 1314.2Concealment of workbefore inspection . . . . . . . . . . .103.5, 503.2, 1203.0,
1326.14–1326.15, 1506.1Connections
Sewer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .714.3Waste . . . . . . . . . . . . . . . . . .310.3, 404.1, 603.4.4,
805.1, 807.4, 810.1Water . . . . . . . . . . . . . . . . . .602.0, 603.4.4, E 58.1
Copper tubing, use of . . . . . . . . . . .903.2.3, 1208.5.2.3Damage to drainage system . . . . . .305.1, 312.3, 312.6Devices . . . . . . . . . . . . . . . . . . . . . . . . .310.5, 1210.12Direct drainage . . . .603.4.4, 801.2, 805.1, 807.4, 810.1Discharge . . . . . . . . .507.5, 509.1.2, 714.2, 1702.9.3.1,
K 104.1.1, L 504.1.1Fittings . . . . . . . . . . . . . . . . . . . . . .310.0, 315.2, 604.11Fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . .310.5, 406.0Floor drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310.10Food waste disposal, connection to . . . . . . . . .1014.1.3Fuel gas piping . . . . . . . . . . . . . . .1208.5.2.4, 1210.2.3Industrial waste disposal . . . . . . . . . . . . . . . . . . . .306.2Installations . . . . . . . . . . . . . . . . . . . . . . . .312.2, 602.1Joints and connections . . . . . . .315.0, 605.3.4, 605.7.2,
705.0, 1315.7, 1318.8Locations . . . . . . . . . . . . . . . .415.4, 603.4.9, 603.5.13,
1210.2.3, 1602.6Materials . . . . . . . . . . . . . . . . . . .F 8.4, H 5.10, H 5.13,
K 103.1.1, L 503.1.1Medical gas and vacuum piping . . . . . . . . . . . . .1317.2Oxygen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1213.1.6Pipes in concrete or masonry . . . . . . . . . . . . . . . .312.2Practices . . . . . . . .101.6.1, 102.4, 103.1, 303.1, 305.1,
309.2, 310.0, 312.2, 312.6, 502.1,602.0, 714.1, 1101.2, 1204.3, 1205.0,
1206.3, 1601.3, K 101.3, L 302.1, L 501.3Receptors, location of . . . . . . . . . . . . . . . . . . . . . .804.1Systems . . . . . . . . . . . . . . . . . . . . . . . .310.4, L 602.3.6Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1004.0Trough type urinals . . . . . . . . . . . . . . . . . .406.2, E 47.1Urinals and water closets on acombination waste and vent system . . . . . . . . .910.7
Vent termination . . . . . . . . . . . . . . . . . . . . . . . . . .906.3Water piping . . . . . . . . . . . . . . . . .312.6, 604.11, 720.1
PROPERTY LINE, TERMINATION OF VENT . . . . . . .906.2
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PROTECTION FROMCorrosion . . . . . .312.1, 312.4, 402.3, 402.6.2–402.6.3,
506.9(1), 507.4, 508.1.2, 509.5.3,509.7, 509.10.1, 509.10.1.2–509.10.1.3,
609.3(1), 710.4, 710.8, 810.2, 811.2,814.1, 1004.1, 1208.5.2.4, 1208.5.3.3,
1208.5.6, 1208.6.1.1, 1210.1.3,1210.2, 1210.3.4, 1211.1(8), 1317.1,1317.2, 1324.7, 1602.9.1, 1702.9.5.1,C 7.3, E 7.3, E 28.1, E 32.1, E 32.2,
E 33.2, E 33.3, E 62.1, F 5.4,H 5.3, H 5.13, K 103.3, K 104.9.2,
L 503.3, L 504.9.2, L 603.4.5.1Decay . . . . . . . . . . . . . . . .1602.9.1, 1702.9.5.1, H 5.3,
K 103.3, L 503.3Freezing . . . . . . . . .312.6, 603.4.7, 1210.1.4, 1210.8.2,
1602.9.4, 1702.9.9, K 104.8, L 504.8Seismic . . . . . . . . . . . . . . . . . . . . . . . . . . .507.2, 1317.8
PROTECTION OFFuel gas meters . . . . . . . . . .1208.6.1, 1208.6.3, E 26.2Piping materials and structures . . .312.0, 314.4, 1210.1Potable water supply . . . . . . . . . . . . . . . . . . . . . . .603.0Trap seals . . . . . . . . . . . . . . . . .1002.0, 1005.1, 1007.0Water heaters . . . . . . . . . . . . . . . . .504.3–504.6, 505.2,
507.2, 507.12–507.15PUBLIC OR PUBLIC USE
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0PUBLIC SEWER
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0PUBLIC SHOWER FLOORS . . . . . . . . . . . . . . . . . . . .408.8PUSH FIT FITTINGS . . . .218.0, 605.3.3, 605.3.3.3, 605.4.1
– Q –QUALITY AND WEIGHT OF MATERIALS,GENERAL REGULATIONS . . . .301.1.1, 301.1.2, 301.2,
301.4, 811.3QUALITY OF FIXTURES . . . . . . . . . . . . . . . . . . . . . . .401.1QUICK-DISCONNECT DEVICE
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .219.0
– R –RAINWATER
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220.0RAINWATER CATCHMENTSYSTEMS . . . . . . . . . . . . . . . . . . .220.0, 601.2.2.1, 1601.7,
Chapter 17, Appendix K,L 501.0, L 502.0,
L 503.2, L 504.1, L 504.5RAINWATER STORAGE TANK
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220.0Venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1702.9.5.7
REAMING PIPES . . . . . . .309.3, 605.2.1, 605.3.1–605.3.2,605.3.3.2–605.3.3.3, 605.3.4, 609.1,701.2.1, 705.3.1, 705.5.1, 705.5.3,
903.3, 1208.5.5
RECEIVING LANDSCAPEDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220.0
RECEIVING TANKS OR SUMPS . . . . . . . . . .710.2–710.3,710.7–710.10, 710.13.1
RECEPTORSDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220.0Indirect waste . . . . . . . .414.3, 801.1, 801.2.2–801.2.3,
801.3, 801.5–801.6, 804.0, 807.1,810.4, 814.3, 902.2, 1306.2
Shower . . . . . . . . . . . . . . . . . . . . . .408.1, 408.5–408.7RECLAIMED (RECYCLED) WATER
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220.0RECLAIMED (RECYCLED)WATER SYSTEMS . . . . . . . . . . . . . . . . . . . . . . .601.2.2.1
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1614A.0Drawings and specifications . . . . . . . . . . . . . . .1616A.0General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1613A.0Identification . . . . . . . . . . . . . . . . . . . . . . . . . . .1617A.0Inspection and testing . . . . . . . . . . . . . . . . . . . .1620A.0Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1618A.0Permit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1615A.0Pipe material . . . . . . . . . . . . . . . . . . . . . . . . . . .1617A.0Signs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1619A.0Sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1621A.0
REDUCED PRESSURE DETECTOR FIREPROTECTION BACKFLOWASSEMBLY . . . . . . . . . . . . . . . . . . . .603.3.9, Table 603.2
REDUCERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .316.0REFRIGERATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . .801.2REGULATORS
Backpressure . . . . . . . . . . . . . . . . . . . . . . . . . . . .507.9Draft . . . . . . . . . . . . . . . . . . . . . . . . . .506.1.2, 509.11.3,
509.11.4–509.11.5, 509.14Firefighter breathing air . . . . . . . . . . . . . . . . . . . . .F 5.8Fuel gas supply . . . . . .507.20–507.22, 1201.1, 1208.3,
1208.7–1208.8, 1210.4.1, 1210.6,1210.11, 1213.1.5, 1214.0, 1215.1,1216.1.3, E 36.3–E 36.4, E 36.5.2
Medical gas and vacuum . . . . . . . . . . .1318.7, 1319.4,1320.2, 1324.2
Water supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . .608.2RELIEF VENTS . . . . . . . . . . . . . . . . . . . .907.0, B 3.0, C 8.4
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .805.1Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220.0Interceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1009.4
REMOTE OUTLETDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220.0
RENDERERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .601.6REPAIRING
Defective gas pipe, prohibited . . . . . . . . . . . . .1208.5.5Defective pipe and fittings . . . . . . . . . . . . . . . . . .101.11
REPAIRS AND ALTERATIONS TOPLUMBING AND DRAINAGE SYSTEMS . . . . . . . .101.6
REQUIREDAir gaps or air breaks . . . . . . . . . . . . . . . . . . . . . .801.1Appurtenances . . . . . . . . . . . . . . . .1604.10.3, 1702.9.2
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Area of subsurface irrigationfields and mulch basins . . . . . . . . . . . . . . .1602.10.1
Drainage or sewer connections . . . . . . . . .304.1, 713.0Filters . . . . . . . . . . . . . . . . . . . . . .1604.10.5, 1702.9.11Flushing devices . . . . . . . . . . . . . . . . . . . . . . . . . .413.2Fuel gas pipe size . . . . . . . . . . . . . . . . . . . . . . . .1216.0Fuel gas supply . . . . . . . . . . . . . . . . . . . . . . . . . .1215.0Gravity drainage . . . . . . . . . . . . . . . . . . . . . . . . . .709.0Hot and cold water . . . . . . . . . . . . . . . . . . . . . . . .601.0Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1506.0Low-pressure cutoff . . . . . . . . . . . . . . . . . . . . . . . .609.8Medical gas and vacuum pipe size . . . . . . . . . . .1313.0Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103.0Plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101.5Plumbing fixtures . . . . . . . . . . . . . . .422.0, Table 422.1Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . .1604.5, 1702.5Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .901.1
RESPONSIBLE FOR TESTING . . . . . . . . . . . . . .103.5.7.2RESTAURANT, GREASE INTERCEPTORS . . . . . . .1014.1RETESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103.5.9.2RISERS
Fuel gas . . . . . . . . . . . .1208.5.4.2, 1210.1.7, 1210.3.4,E 25.1, E 26.1, E 32.2, E 36.3
Medical gas and vacuum . . . . .1317.2, 1319.6, 1319.8,1322.2, Table 1317.7
Sewer . . . . . . . . . . . . . . . . . . . . . . . . . . .E 71.0, E 73.1Water . . . . . . . . . . . .220.0, 408.10, 610.1, 1604.12.2.3,
1702.11.2.3, A 2.1, A 5.1, A 5.2,A 7.1, E 12.1, E 17.1,
E 64.1, E 77.1, L 603.4.7RODENTPROOFING . . . . . . . . . . . . . . . . . . . . . . . . .312.12ROOF DRAINS . . . . . . . . . . . .220.0, 1101.11.1, 1101.11.2,
1103.1, 1105.0, 1108.0,1109.2.1, 1702.9.7, K 104.6,
L 504.6, Table 1101.11ROOF DRAINAGE . . . . . . . . . . . . . . . .1101.11, Appendix D
Controlled-flow . . . . . . . . . . . . . . . . . . . . . . . . . .1108.0Primary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1101.11.1Secondary . . . . . . . . . . . . . . . . . . . . . . . . . . . .1101.11.2
Combined . . . . . . . . . . . . . . . . . . . .1101.11.2.2(B)Separate piping . . . . . . . . . . . . . . . .1101.11.2.2(A)
ROOF GUTTERS . . . . . . . . . . . .1101.11.1, 1105.2, 1106.3,1702.6, 1702.7.2, 1702.9.7,
1702.9.12, K 103.2,K 104.6, K 104.11,L 503.2, L 504.6,
L 504.11, Table 1106.3ROOF SUPPLY TANKS . . . . . . . . . . . . . . . . . . . . . . . .607.0ROOF, TERMINATION OFVENTS ABOVE . . . . . . . . . . . . . . .509.6.2, 905.4, 906.1,
906.3, 906.5, 906.7ROOF WASHERS . . . . . . . . . . . . . .220.0, K 104.9, L 504.9ROUGHING-IN
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .220.0
– S –SADDLE, SLEEVE, BAND OUTLETS,PROHIBITED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310.1
SAFETY AND HEALTH . . . . . . . . . . . . . . . . . . . . . .101.11.1SAFETY DEVICES . . . . . . . . . . . . . . . .504.4–504.6, 505.2,
603.0, 608.0SAND INTERCEPTORS . . . . . . . . . . . . . . . . . . . . . .1016.0
Cleanout for . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .707.7Construction and size . . . . . . . . . . . . . . . . . . . . .1016.3Definition . . . . . . . . . . . . . . . . . . . . . .(see Interceptors)Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1009.3Discharge . . . . . . . . . . . . . . . . . . . . . . . .1009.7, 1016.1Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1009.5Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . .1009.6Required . . . . . . . . . . . . . . . . . . . . . . . .1009.1, 1016.1Vent, required andnot required . . . . . . . . .901.0, 902.1, 1002.1, 1016.4
Water seals . . . . . . . . . . . . . . . . . . . . . .1009.3, 1016.4SANITARY TEES, PERMISSIBLE USE . . . . . .706.2, C 9.3,
C 9.4SCREW JOINTS . . . . . . . . . . . . . . . . . . . . . .1205.2, 1206.3SCRUB SINK
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0SDR
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0SEAL, TRAP . . . . . . . . . . . . . . . .222.0, 315.1, 403.3.1, 413.4,
901.2, 911.2, 1005.0, 1007.0,C 9.1, E 45.1
SEAM, WELDEDDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0
SECONDARY INTERCEPTORS . . . . . . . . . . . . . . . . .902.1SECONDARY TEMPERATURE LIMITING DEVICE . .505.2SEDIMENT TRAPS . . . . . . . . . . . . . . . . . .1210.8.3, 1211.8SEEPAGE PITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 7.0
Abandoned . . . . . . . . . . . . . . . . . . . . . . . .722.2, H 11.0Area of disposal . . . . . . . . . . . . . . . . . . . . . . . . . . .H 3.0Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 7.1Combination with disposal fields . . . . . . . . . . . . . .H 6.4Connection to sewer prohibited . . . . . . . . . . . . . . .714.3Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 7.3Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0Location . . . . . . . . . . . . . . . . .721.0, H 1.7, Table H 1.7Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .716.1Multiple installations . . . . . . . . . . . . . . . . . . . . . . .H 7.2Soil absorption . . . . . . . . . . . . . . . . . . . . . .H 3.0, H 4.2
SELF-CLEANING TRAPS . . . . . . . . . . . . . . . . . . . . .1003.1SEPARATE PLUMBING ANDDRAINAGE SYSTEMS . . . . . . . . . . . . . . . . . . . . . . .311.0
SEPARATE VENTING . . . . . . . . . . . . . . . . . . . .811.6, 906.3SEPARATORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1009.0SEPTIC TANKS
Abandoned . . . . . . . . . . . . . . . . . . . . . . . .722.2, H 11.0Capacity . . . . . . . . . . . . . . . . . . . . . .H 2.0, Table H 2.1Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 6.7Connections to sewer prohibited . . . . . . . . . . . . . .714.3
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Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 5.0Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0Location of . . . . . . . . . . . . . . .721.0, H 1.7, Table H 1.7Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .716.1Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 5.8
SERVICE, AUTHORITY TO RENDER GAS . . . . . . .1205.0SETTING FIXTURES . . . . . . . . . . . . . . . . . . . . . . . . . .402.5SETTLING TANKS . . . . . . . . . . . . . . . . . . . . . . . . . . .902.1SEWAGE
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0Disposal of . . . . . . .303.0, 709.0, 713.0, 714.0, 1014.1,
1602.2.1, E 4.1, E 66.1, L 302.1SEWAGE DISPOSAL SYSTEMS, PRIVATE . . . .Appendix H
Abandoned . . . . . . . . . . . . . . . . . . . . . . . .722.2, H 11.0Commercial food waste grinders . . . . . . . . . . . . . .714.4Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 1.5Holding tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . .714.5Inspection and testing . . . . . . . . . . . . . . . . . . . . .H 10.0Location . . . . . . . . . . . .307.0, 721.0, H 1.7, Table H 1.7Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .715.0Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .904.1
SEWAGE EJECTOR . . . . . . . . .221.0, 710.2, 710.3, 710.10SEWAGE PUMP . . . . . . . . . . . .221.0, 710.2, 710.3, 710.13SEWERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Chapter 7
Abandoned . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .722.0Adjacent to walls . . . . .312.3, 715.1, 718.3, Table 721.1Available . . . . . . . . . . . . . . . . . . . . . . . . . . .713.2, 713.4Building, material of . . . . . . . .701.0, 715.0, Table 701.1Cleanouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .719.0Connection to, required . . . . . . . . . . . . . . .304.0, 713.0Construction of . . . . . . . . . . . . . . . . . . . . . .715.0–719.0Damage to . . . .305.1, 306.1, 714.1, 718.3, 811.1, 1009.1Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0Depth of . . . . . . . . . . . . . . . . . . . . . .312.3, 718.3, 720.1Easements for . . . . . . . . . . . . . . . . . . . . . . . . . .721.2(1)Ejectors . . . . . . . . . . . . . . . . . . . . .710.2–710.3, 710.10Existing . . . . . . . . . . . . . . . . . . . . .101.6.1, 713.6, 715.3Grade and support of . . . . . . . . . . . . . . . . .708.0, 718.0Gray water . . . . . . . . . . . . . . . . . .1602.2.1, 1602.9.1(8)Independent system required . . . . . . . . . . . . . . . .311.0Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103.5Joints and connections . . . . . . . . . . . . . . . . . . . . .705.0Location . . . . . . . . . . . . . . . . . . . . .307.0, 312.3, 718.3,
720.0, 721.0, Table 721.1Materials . . . . . . . . . . .701.0, 715.0, 720.1, Table 701.1Mobile home and recreationalvehicle parks . . . . . . . . . . . . . .E 4.1, E 21.1, E 41.1,
E 43.1, E 66.1, E 69.0,E 71.0, E 72.0, E 73.0
Must be on same lot as building . . . . . . . . .307.1, 721.1Private sewage disposal systems . . . . . . .713.0, 714.0Prohibited connections . . . .603.4.4, 714.2, 714.3, E 62.1Required . . . . . . . . . . . . . . . . . . . . . . . . . . .709.1, 713.0Size of building . . . . .703.2, 710.5, 717.0, C 5.3, C 9.9,
Table 702.1, Table 703.2,Table 717.1, Table C 5.3
Storm water . . . . . . . . . . . . . . . . . . . . . .1101.2, 1104.3Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .718.2Testing of . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .723.0Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .904.1Water pipe in trench . . . . . . . . . . . . . . . . . .609.2, 720.0
SHALLDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0
SHEET LEAD . . . . . . . . . . . . . . .401.2, 408.7, 701.3, 906.6SHIELDED COUPLINGS . . . . .221.0, 705.4.2, Table 313.1SHOCK ARRESTER
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0SHORT TURN 1⁄4 BEND, PROHIBITED . . . . . .310.5, 706.0SHOULD
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0SHOWERS
Control valves . . . . . . . . . . . . . . . . . . . . . .408.3, 601.1Finished curb or threshold . . . . . . . . . . . . . . . . . . .408.5Gang . . . . . . . . . . . . . .209.0, 408.3, L 201.2, L 402.5.2Mobile home and recreationalvehicle parks . . . . . . . . . . . . . . . . . . . .E 52.0, E 53.0
Pans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .408.7Public floors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .408.8Receptors . . . . . . . . . . . . . . . . . . . . . . . . . .408.6, 408.7Stall or compartment . . . . . . . . . . . . . . . . . . . . . . .408.6Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .408.7.1Valve and head location . . . . . . . . . . . . . . . . . . . .408.9Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . .417.2–417.3Waste outlet or drains . . . . . . . . .317.1(2), 405.1, 408.4Water consumption . . . . . . . . . . . . . . .408.2, L 402.5.1
SHUTOFF VALVESFuel gas . . . . . .507.8, 509.5.7.1, 1208.10, 1210.2.2.1,
1210.9.1.1, 1210.11, 1211.3, 1211.4.4,1211.5–1211.6, 1211.8, 1213.2.5,
1213.6.1.3(1), E 25.0, E 26.3, E 33.4,E 35.3, E 36.5
Medical gas and vacuum . . . . . . . . . . .1315.8, 1319.0,1320.1–1320.2, 1322.3,
1322.5, 1324.2(3),1324.2(6), 1324.7(4),1325.2(3), 1325.2(5),
1326.7, 1326.10Sewage . . . . . . . . . . . . . . . . . . . . . .710.12.1, 710.13.2Water . . . . . . . . . . . .504.6, 606.2–606.3, 608.4, 609.8,
1602.9.1(5), 1702.9.5.5,E 16.0, E 77.1, E 78.1, F 6.1,
K 104.4.2, L 402.3.1, L 504.4.2SIMPLE SYSTEM . . . . . . . . . . . . . . . . . . . .221.0, 1602.1.2SINGLE-STACK VENT SYSTEMS . . . . . . . . . . . . . . .C 9.0SINKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .420.0
Clinic . . . . . . . . . . . . . . . . . .205.0, 402.6, 413.2, 420.2Connections . . . . . . . . . . . .405.2, 414.3, 419.2, 704.3,
801.2.3, 801.3, 902.2, 1014.3.2Floor . . . . . . . . . . . . . . . . . . . . . .902.2, 1014.1, 1604.1,
1702.1, B 1.0Island . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .909.0
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Laundry . . . . . . . . . . . . . . . . . . . . . . . . . . .420.2, 420.3Prohibited . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .406.3Service . . . . . . . . . . . . . . . . . . . . . . . . . . . .420.2, 420.3Special use . . . . . . . . . . . . . . . . . . . . . . . . .407.2, 407.3Trap . . . . . . . . . . . . . . . . . . . . . . . . . . . .1001.1, 1003.1Vent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .902.2Waste outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . .420.3
SIZE OFBuilding sewers . . . . . . . . . .703.0, 717.0, Table 702.1,
Table 703.2, Table 717.1Cesspools . . . . . . . . . . . . . . . . . . . . . . . . . .Appendix HChimneys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.5.5Circuit venting . . . . . . . . . . . . . . . . . . . . . . . . . . . .C 8.0Combination waste and vent piping . . .910.0, Appendix BCombustion air openings . . . . . . . . . . . . . .506.3–506.5Condensate pipe . . . . . . . . . . . . . . .814.0, Table 814.1Disposal fields . . . . . . . . . . . . . . . . . . . . . . .Appendix HDrainage piping . . . . . . . . . . .703.0, C 5.0, E 6.0, E 9.0,
E 10.0, E 12.0, E 68.0,Table 702.1, Table 703.2
FOG disposal systems . . . . . . . . . . . . . . . . . . . .1015.4Fuel gas piping systems . . . . . . . . . . . .1208.4, 1215.0,
1216.0, E 31.0Fuel gas vents . . . . . .509.6.3, 509.7.4, 509.10.2, 510.0Flushometer valves and tanks . . . . . . . .610.10–610.11Gray water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1602.8Grease interceptors . . . . . . . . . . . . .1014.2.1, 1014.3.6,
Table 1014.2.1, Table 1014.3.6Hanger rods . . . . . . . . . . . . . . . . . . . . . . . . . . . . .313.6Indirect waste pipes . . . . . . . . . . . . . . . .801.2.1, 803.0Leaders, conductors, and storm drains . . . . . . . . .1106.0,
Table 1101.11Louvers, grilles, and screens . . . . . . . . . . . . . . . .506.8Medical gas and vacuum pipe . . .1313.0, Table 1313.2Oil tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E 35.2On-site treated nonpotable water piping . . . . . .1604.13Pipe cleanouts . . . . . . . . . . . . . . . .707.10, Table 707.1Rainwater catchment systems . . . . . .1702.6, K 104.13,
L 504.13Roof drainage . . . . . . . . . .1101.11, 1108.1, 1702.9.12,
K 104.12, L 504.11,Appendix D, Table 1101.7,
Table 1106.3Sand interceptors . . . . . . . . . . . . . . . . . . . . . . . .1016.3Seepage pits and disposal fields . . . . . . . . . . . . . .H 3.0Septic tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 2.0Single-stack vent systems . . . . . . . . . . . . . . . . . . .C 9.0Traps . . . . . . . . . . . . . . . .702.1, 910.4, 1003.3, 1006.1,
1103.3, Table 702.1Vacuum drainage systems . . . . . . . . . . . . . . . . . .C 7.0Vent pipes . . . . . . . . . . .710.10, 810.1, 904.0, 908.1.1,
908.1.2, 908.2.2, C 6.0,Table 703.2, Table 810.1
Water heaters . . . . . . . . . . . . . . . . . .501.1, Table 501.1Water piping . . . . . .610.0, Appendix A, E 12.0–E 13.0,
Table 610.3, Table 610.4, Table A 2.1
Water softener connections . . . . . . . . . . . . . . . . . .611.4Wet venting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .908.0
SLAUGHTERHOUSES . . . . . . . . . . . . . . . . . . . . . . .1010.0SLIP JOINTS . . . . . . . . . . .221.0, 402.11, 509.10.9, 605.15,
705.10.1, 705.10.3, 1003.2SLOPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(see Grade)SOIL PIPE . . . . . . . . .221.0, 310.2, 310.4, 402.6.1, 402.6.3,
701.1(6), 703.0, 722.2, 1002.4,Table 701.1
SOIL POROSITY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 1.1SOLDER, BUSHINGS . . . . . . . . . . . . . . .701.5, Table 701.5SOLDER JOINTS . . . . . . . .212.0, 309.2, 402.6, 605.3.3.1,
605.3.4, 605.17.1, 705.5.3,705.11.1–705.11.2,1315.9, Table 313.1
SPACINGPipe supports . . .313.0, 1210.2.4.1, 1317.7, Table 313.1,
Table 1210.2.4.1, Table 1317.7Trenching and leaching beds . . . . . . . . . . . . . . . . .H 6.9
SPECIAL FIXTURES . . . . . . . . . . . . . . . . . . . . . . . . . .407.0SPECIAL HAZARD AREA (MEDICAL GAS)
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0SPECIAL VENTING . . . . . . . . . . . . . . . . . . . . . . . . . . .909.0SPECIAL WASTE PIPE . . . . . . . . . .(see Industrial wastes)SPECIAL WASTES
Acid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .811.2Chemical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .811.0Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0Industrial . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .811.0High temperatures . . . . . . . . . . . . . .810.1, Table 810.1Laundries, slaughterhouses, bottlingestablishments, and auto wash racks . . . . . . . .711.0,
1010.0–1013.0SPECIFIC GRAVITY, NATURAL GAS . . . . . . . . . . . .1215.1SPECIFICATIONS FOR MATERIALS . . .301.1, Table 1401.1STACKS . . . . . . . . . . . . . . . . . . . . . .221.0, 317.1, 705.10.2,
706.2, 711.1, 906.1, 907.0,1104.3, C 5.4–C 5.5,C 6.0, C 8.4, C 9.0
STAINLESS STEEL PIPE . . . . . . . . . . . . . . .605.14, 705.8,Table 313.1, Table 604.1,
Table 701.1STANDARDS FOR MATERIALS . . . . .301.1, Table 1401.1STANDPIPE, CLOTHES WASHER . . . . . . . . . . . . . . .804.1STATION INLETS . . . . . . . . . . .221.0, 1321.0, Table 1313.1STATION OUTLETS . . . . . . . . .221.0, 1321.0, Table 1313.1STEAM EXHAUST CONDENSEROR BLOW OFF . . . . . . . . . . . . . . . . . .810.0, Table 810.1
STERILE EQUIPMENT . . . . . . . . . . . . . . . . . . . . . . . .806.0STORAGE TANKS
Alternate water sources . . . . . . . . . . . . .1602.3, 1604.4Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .607.0Hot water . . . . . . . . . . . . .505.2, 608.6–608.7, L 602.2,
L 603.4.2, L 603.4.5.4, L 603.4.7Potable water . . . . . . . . . . . . . . . . . . . . . . . . . . . .E 62.0
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Rainwater . . . . . . . . . . . . .1702.7.3, 1702.9.5, K 102.2,K 103.3, K 104.4, L 502.2,
L 503.3, L 504.4Vacuum drainage . . . . . . . . . . . . . . . . . . . . . . . . . .C 7.2
STORM DRAINAGE SYSTEMS . . . .Chapter 11, Appendix DSTORM DRAINS . . . . . . . .221.0, 1101.5, 1101.10, 1101.11,
1101.12, 1102.3, 1103.0, 1106.0, 1107.1STORM SEWERS . . . . . . .221.0, 715.3, 1101.1, 1101.11.2,
1101.12.1, 1102.4, 1106.2, 1107.1STRAINERS AND CONNECTIONS . . .405.0, 408.4, 810.4,
1012.1, 1105.2–1105.3S-TRAP PROHIBITED . . . . . . . . . . . . . . . . . . . . . . . .1004.1STREET MAIN; (SEE WATER MAIN) . . .225.0, 608.1, 608.3,
610.7, A 3.2, A 3.4,Table 721.1, Table 1602.4,
Table H 1.7STRUCTURAL CONDITION SAFETY . . . . . .312.2, 312.11SUBMITTAL OF PLANS . . .101.5, 103.2(4), 103.4.1, 103.4.2,
301.4.3, 811.1, 910.2, 1108.1(13),1311.1, 1311.3, 1604.2,
1702.2, C 2.2, C 7.1, E 3.1,H 5.1, K 101.3.1, L 501.3.1
SUBSOIL DRAINS . . . . . . . .221.0, 1101.5, 1101.7–1101.8,1102.5, Table 1102.5
SUBSOIL IRRIGATION FIELDS . . . . . . . . . .221.0, 1602.2.2,1602.10.1
SUBSTITUTE MATERIALS . . . . . . . . . . . . . . . . . . . . .301.2SUBSURFACE DISPOSAL FIELDS . . . . . . .1602.10, H 1.1SUBSURFACE IRRIGATION FIELDS . . . . .221.0, 1602.2.2SUDS RELIEF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .711.0SUMPS
Boiler room, installation . . . . . . . . . . . . . . .810.1, 810.3Building, backwaterdevices . . . . . . . . . . . . . . .710.1, 710.3–710.4, 710.6
Building drainage systems below sewer level . . . . .710.2Condensers . . . . . . . . . . . . . . . . . . .810.0, Table 810.1Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . .810.2Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0Macerating toilet systems . . . . . . . . . . . . . . . . .710.13.1Pump connection permitted . . . . . .710.2–710.5, 710.9,
805.1, 1101.5.2, 1101.6Pump discharges, conversionto fixture units . . . . . . . . . . . . . . . . . . . . .702.3, 710.5
Sewage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .710.0Sizing, sewage ejector and pumps . . . . . . . . . . . .710.3Storm drainage . . . . . . . . . .1101.5.2–1101.5.3, 1101.6,
1101.9–1101.10, 1101.13Vents . . . . . . . . . . . . . . . . . . . .710.7, 710.10, 710.13.3,
810.1, Table 810.1Water supply inlets . . . . . . . . . . . . . . . . . . . . . . .603.5.5
SUPPLY, WATERFittings, fixtures . . . . . . . . . . . . . . . . . . . . . . . . . . .402.8Fixture
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .208.0
Fixture units . . . . . .610.3, 610.7–610.10, C 4.2, C 7.5,E 12.1, E 15.1, L 402.3.1, Table 610.3,
Table 610.10, Table A 2.1Hot water . . . . . . . . . . .601.1, 602.1, 603.4.5, 603.5.10,
608.7, 609.1, 609.4, 610.3, 610.12,L 602.5, L 603.4, Table 610.3,
Table A 2.1, Table C 4.1Materials . . . . . . . . . . . . . . . . .604.0, 1602.9.2, 1604.6,
1702.7, K 103.4,L 503.4, Table 604.1
Nonpotable water . . . . . . . .601.2, 603.5.11, 610.13(6),1604.6
Pipe, size of . . . . . . . . .610.0, Table 610.3, Table 610.4,Table A 2.1, Table C 4.1
Potable water, protection . . . .409.5, 410.2, 412.1, 414.2,419.3, 602.0, 603.0, 1308.1,
1602.3, 1604.4, 1702.4,E 58.1, K 101.9, K 102.2,
L 501.9, L 502.2Pressure . . . . . . . . . . . . . . . . .608.0, 1702.9.6, E 60.1,
K 104.5, L 504.5Quality . . . . . . . . . . .601.1, 1601.7, 1604.7, 1604.10.2,
1702.9.4, 1702.9.8, E 11.1,K 101.7, K 104.2, K 104.7,L 501.7, L 504.2, L 504.7
Quantity . . . . . . . . . . . . . . . .413.2–413.4, 416.2, 419.3,610.3, E 11.1, E 77.1
Risers . . . . . . . . . . . . . . . . . . . . . . . . . . .408.10, E 12.1Tanks, water . . . . . . . . . . . . . . . . .603.5.5, 607.0, 608.1Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .609.4Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .606.0
SUPPORTS . . .221.0, 313.0, 402.4, 507.1.1, 507.3, 507.19,509.5.8, 509.6.5, 509.7.5, 509.10.8, 609.1,718.2, 906.4, 1208.6.2, 1208.11.1, 1210.2,1210.2.4, 1317.7, E 26.1, E 35.3(7), E 36.2,E 36.6, F 9.4, H 6.3, L 602.5, Table 313.1,
Table 1210.2.4.1, Table 1317.7SURFACE WATER, DISCHARGE . . . .306.2, 714.2, 811.1,
1101.1, 1101.10SURGE TANKS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0SWIMMING POOLS, SPAS,AND HOT TUBS . . . . . . . . . . . .603.5.5, 603.5.21, 813.0,
L 404.1(5), L 603.4.6SYSTEMS
Chimney venting . . . . . . . . . . . . . . . . .509.5, 509.6.3.2Circuit venting . . . . . . . . . . . . . . . . . . . . . . . . . . . .C 8.0Combination waste and vent . . . . . . . . . . .205.0, 910.0,
Appendix BDefective, testing of . . . . . . . . . . . . . . . . . . . . .103.5.8.1Dialysis water . . . . . . . . . . . . . . . . . . . . . . . .603.5.19.1Direct-vent . . . . . . . . . . . . . . .509.6.2(3), 509.8.2, 511.0Domestic hot-water distribution
for health facilities and clinics . . . . . . . . . . . . . . .613.0Durham
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .206.0
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Engineered . . . . . . . . . . . . . . . . .509.10.7, 911.0, C 2.0Exhaust . . . . . . . . . . . . . . . . . . . .507.21(4), 507.22(3),
509.3.4, 509.6.2(6)Fire protection . . . . . . . . . . . . . . . . . . . .603.5.15, 612.0Firefighter breathing air replenishment . . . .Appendix FFirestop . . . . . . . . . . . . . . . . . . . . . . . . . . . .Chapter 15FOG disposal . . . . . . . . . . . . . . . . . . . . . . . . . . .1015.0Fuel gas piping . . . .507.18, Chapter 12, E 23.0–E 38.4Fuel gas venting . . . . . . . . . .509.0, 510.0, Table 509.4Gray water . . . . . . . . . . . . . . . . . . . . .601.2.2.1, 1602.0Grounding . . . . . . . . . . . . . . . . . . . . . . .604.9, 1210.15Independent . . . . . . . . . . . . . . . . . . . . . . . . . . . . .311.0Lightning protection . . . . . . . . . . . . . . . . . . . .1210.15.4Macerating toilet . . . . . . . . . . . . . . . . . . . . . . . . .710.13Mechanical draft . . . . . . . . . . . . . . .509.3.3, 509.6.2(5),
509.8, 509.10.3.2, 509.10.6Medical gas and vacuum . . . . . . . . . .319.0, Chapter 13Natural draft venting . . . . . . . . . . . . . . . . . . . .509.6.3.1On-site treated nonpotable . . . . . . . . .601.2.2.1, 1604.0Plumbing
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .218.0Plumbing venting . . . . . .710.7, 712.0, Chapter 9, C 6.0Potable water . . . . . . . . . . . . . . . . . . .225.0, Chapter 6,
E 11.0–E 22.1, Appendix APrivate sewage disposal . . .713.2–713.3, 713.5, 713.7,
714.0, 716.1, 723.1,904.1, Appendix H
Pure water process . . . . . . . . . . . . . . . . . . . . .603.5.19Rainwater catchment . . . . .220.0, 601.2.2.1, Chapter 17,
L 501.0–L 504.0,Appendix K
Reclaimed (recycled) . . . . . . . . . . . . . . . . . . .601.2.2.1Sanitary drainage . . . . . . . . . . .206.0, Chapter 7, C 5.0,
E 4.0–E 10.2, E 66.0–E 70.1Single-stack vent . . . . . . . . . . . . . . . . . . . . . . . . . .C 9.0Storm water drainage . . . . . . . .Chapter 11, Appendix DUltraviolet water treatment . . . . . . . . . . . . . . . . . .611.1Vacuum drainage . . . . . . . . . . . . . . . . . . . . . . . . . .C 7.0Ventilation . . . . . . . . . . . . . . . . . . . . . . . .506.1.3, 506.7Wet vent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .908.2
– T –T RATING . . . . . . . . . . . . . . .222.0, 1504.3, 1505.3, 1506.4TAILPIECES
Connection . . . . . . . .414.3, 419.2, 807.2, 910.5–910.6Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .222.0Maximum length of . . . . . . . . . . . . . . . . . . . .910.5, 1001.1Sizes . . . . . . . . . . . . . . . . . .405.2, 408.4, 409.2, 420.3,
B 2.0, B 4.0, B 5.1TANKS
Boiler blow off . . . . . . . . . . . . . . . . . .810.1, Table 810.1Dosing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .H 6.8Expansion . . . . . . . . . . . . . . . . . . . .608.2, 608.3, 812.1Flush . . . . . . . . . . . . . . . . . .208.0, 402.4, 403.2, 404.1,
413.0, 601.1, A 3.1
Flushometer . . . . . . . . . . . . . . . . . . . . . . .610.11, A 5.3Gravity supply . . . . . . . . . . . . . . . . . . . . . . . . . . . .607.0Hot water storage . . . . . . . . . . . . . .608.3, 608.6–608.7,
L 602.2Inlet to . . . . . . . . . . . . . .603.5.2, 603.5.5, 710.9, 810.1,
K 104.4.4, L 504.4.4Materials . . . . . . . . . . . . . . . . . . . . . . . . . . .710.8, 810.2Oil . . . . . . . . . . . . . . . . . .1017.1, E 35.2–E 35.3, E 36.6Primary settling . . . . . . . . . . . . . . . . . . . . . . . . . . .902.1Rainwater storage . . . . . . . . . . . . . .1702.7.3, 1702.9.5,
K 102.2, K 103.3,K 104.4, L 502.2,L 503.3, L 504.4
Septic . . . . . . . . . . . . . . . . .714.3, 716.1, 722.2–722.4,Appendix H
Sump or receiving . . . . . . . . . . . .710.2, 710.7–710.10,810.2, 1101.6
Surge . . . . . . . . . . . . . . . . . .221.0, 1602.2.2, 1602.9.1,1602.14, Table 1602.4
Urinal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .603.5.2Water closet . . . . . . . . . . .404.1, 406.1, 601.1, 603.5.2,
603.5.3, L 402.2Water supply . . . . . . . . . . . .606.2, 607.0, 608.1, 608.6,
608.7, E 62.0, E 78.1TEMPERATURE ANDPRESSURE-RELIEF VALVES . . . . . .504.6, 505.2, 613.5
TEMPERATURE-LIMITING DEVICES . . . . . .408.3, 409.4,410.3, 421.2, 504.5
TEMPORARY USE OF GAS . . . . . . . . . . . . . . . . . . .1207.0TERMINATION OF VENTS . . . . . . . . . . . . . .509.6.2, 906.0TESTING AGENCY
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .222.0TESTS
Advance notice for . . . . . . . . . . . . . . . . . . . . .103.5.7.1Air . . . . . . . . . . . . . .103.5.6.3, 103.5.8.1, 609.4, 712.3,
723.1, 1109.2.2–1109.2.3, 1213.1.6Alternate materials and methods . . . . . . . . . . . . .301.2Building sewer . . . . . . . . . . . . . . . . . . .101.6.1, 103.5.3,
103.5.4, 723.0DWV systems . . . . . . . . . . . . . .103.5.3, 103.5.4, 712.0Exceptions . . . . . . . . . . . . . . . . . . . .103.5.6.3, 1109.2.3Final . . . . . . . . . . . . . . . . . . .103.5.9.3, 712.1, 1203.3.2Fuel gas piping . . . . . . . . . . . . . . . . . . . . . . . . . .1213.0Gauges . . . . . . . . . . . . . . . . . . .318.0, 1203.3.2, 1213.3Percolation . . . . . . .1602.7(4), 1602.10.2, H 4.0, H 12.1Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103.5.6Responsibility for . . . . . . . . . . . . . . . . . . . . . . .103.5.7.2Shower receptors . . . . . . . . . . . . . . . . . . . . . . . .408.7.1Storm drainage . . . . . . . . . . . . . . . . . . . . . . . . . .1109.0Testing agency . . . . . . . . . . . . .203.0, 301.2.1.1, 505.4,
610.2, 1506.4Waived . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103.5.6.2Water . . . . . . . . . . . . .609.4, 712.2, 1109.2.1, 1109.2.3Water supply systems . . . . . . . . . . . . . . .103.5.1, 609.4
THREADED JOINTS . . . . .605.2.3, 605.3.5, 605.4.3, 605.6.2,605.12.3, 605.13.3, 605.17.1, 705.1.3,
705.3.3, 705.5.4, 705.6.2, 705.7.3,705.11.2, 1208.5.7, 1208.5.8.1, 1315.7.1
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THREE-COMPARTMENT SINKS . . . . . . . . . . . . . . .1001.1TOILET ROOM
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .222.0TOILETS . . . . . . . . . . . . . . . . . . . . . . . .(see Water closets)
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .222.0TRANSITION GAS RISER . . . . . . . . . . . . . .222.0, 1210.3.4TRANSITION JOINTS . . . . . . . . . . . . . . . . . . . . . .705.10.4TRAPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Chapter 10
Arms . . . . . . . . . . . . . . .222.0, 707.14, 1002.2–1002.3,Table 702.1, Table 1002.2
Bar and fountain sinks . . . . . . . . . . . . . . . .801.3, 902.2Building . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1008.0Condensers and sumps . . . . . . . . . . . . . . . . . . . .810.1Crown weir . . . . . . . . . . . .222.0, 409.6, 905.5, 1001.1,
1002.2, 1002.4Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .222.0Floor drains . . . . . . . . . . . . . . . . . . . . . . .704.3, 1003.1,
1006.0, 1007.1Food storage areas . . . . . . . . . . . . . . . . .418.4, 801.2.2For three-compartmentsinks or three lavatories . . . . . . . . . . . . . . . . . .1001.1
From fixture, distance of . . . . . . . . . . . . . . . . . . .1001.1From vent, distance of . . . . . . . . .1002.2, Table 1002.2Grease interceptors . . . . . . . . . . . . . . . . . . . . .1014.1.1Indirect wastes . . . . . . . . . . . . . . . . . . . . . . . . . . .803.1Industrial interceptors and separators . . . . . . . . .1009.0Integral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1001.1Island sinks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .909.1Materials . . . . . . . . . . . . . . .701.0, 807.3, 906.6, 1003.1Minimum size . . . . . . . . . . .702.1, 1003.3, Table 702.1,
Table 702.2(a)Nonwater urinals . . . . . . . . . . . . . . . . . . . . . . . .403.3.1Prohibited types . . . . . . . . . . . . . . . . . . . . . . . . .1004.0Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1001.0Seal . . . . . . . . . . . . . . . .222.0, 403.3.1, 911.2, 1005.0,
1007.1, C 9.1, E 45.1Seal primer . . . . . . . . . . . . . . . . . . . . . . . .222.0, 1007.1Sediment . . . . . . . . . . . . . . . . . . . . . . .1210.8.3, 1211.8Separate for each fixture . . . . . . . . . . . . . . . . . . .1001.1Size . . . . . . . . . . . . .702.1, 1003.3, B 4.0, Table 702.1,
Table 702.2(a), Table 1002.2Slip joints . . . . . . . . . . . . . . . . . . . . . . .705.10.1, 1003.2Standpipe receptors . . . . . . . . . . . . . . . . . . . . . . .804.1Storm drains and leaders . . . . . . . . . . . . . . . . . .1103.0Top dip
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .222.0Unions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .315.1Unit loading . . . . . . . . .702.0, Table 702.1, Table 703.2Vacuum drainage system . . . . . . . . . . . . . . . . . . .C 7.7Vents for . . . . . . . .810.1, 901.0, 905.2, 905.5, 908.2.1,
909.1, 1002.0, Table 703.2,Table 1002.2
TREATED GRAY WATERDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .222.0
TRENCHING, EXCAVATION, ANDBACKFILLING . . . . . . . . . . .314.0, 718.0, 720.0, 1203.2,
1210.1.1–1210.1.2.1, 1317.4TROUGH URINALS, PROHIBITED . . . . . . . . . . . . . . .406.2
TUBING, COPPER . . . . . . . . . .604.2–604.3, 605.3, 609.1,609.3(2), 610.12, 701.1(4),903.2, 1208.5.3.2, A 4.2,
E 20.1, E 32.1, Table 604.1,Table 701.1
TUNNELING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .314.2TYPE B GAS VENTS . . . . . .222.0, 509.4, 509.5.5, 509.6.1,
509.6.2.1, 509.6.3.1, 509.6.4.1,509.7.3.5, 509.10.1.1–509.10.1.2,509.10.7.2, 509.10.12, 510.1.6,
510.1.10, 510.2.2, 510.2.14,510.2.18–510.2.19, 510.2.21,
Appendix G, Table 509.4,Table 509.7.3
TYPE BW GAS VENTS . . . . . . . . . . .222.0, 509.4, 509.6.2.2,Table 509.4
TYPE L GAS VENTS . . . .222.0, 509.4, 509.6.1, 509.6.2.1,509.10.1.1–509.10.1.2, 509.10.12,
Table 509.4, Table 509.7.3
– U –UPC
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .223.0UNCONFINED SPACE
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .223.0UNDERGROUND
Backflow prevention devices . . . . . . . . . . . . . . .603.4.9Building storm drains . . . . . . . . . . . . . . . . . . . . . .1102.3Drainage piping . . . . . . .701.1(1), 701.1(5), Table 701.1Fuel gas piping . . . . . . .1203.2, 1208.5.2.4, 1208.5.3.3,
1210.1, E 23.2, E 24.1,E 32.3, E 33.2–E 33.3
Medical gas and vacuum piping . . . . . . .1317.1, 1317.4Stop-and-waste valves . . . . . . . . . . . . . . . . . . .603.5.18Storm water piping . . . . . . . . . . . . . . . .1101.3, 1102.1.1Tanks . . . . . . . . . . . . . . . .1017.2, 1602.9.1, 1702.9.5.4,
E 35.1, K 104.4.1.2,L 504.4.1.2
Unions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .315.1Vent material . . . . . . . . . . . . . . . . . . . . .903.1(1), 903.2Water piping . . . . . . . . . . . . . . . . . .604.2, 604.9, 609.8,
720.0, 1604.10.4UNIONS
Dielectric . . . . . . . . . . . . . . .605.16, 605.17.1, 605.17.3Fuel gas piping . . . . . . . . . . . . . . . . . . . .1211.5, E 26.2Location . . . . . . . . . . . . . . . . . . . . . .315.1, 609.5, 710.6Medical gas and vacuum piping . . . . . . . . . . . . .1315.7Sump pump . . . . . . . . . . . . . . . . . . . . . . . . . . .1101.5.2Where allowed . . . . . . . . . . . . . . . . . . . . . . . . . . .315.1
UNIT LOADING OF TRAPS . . . . . . . .702.1, Table 702.2(a)UNITS, FIXTURE . . . . .208.0, 610.3, 610.7–610.10, 702.0,
703.0, 710.5, 717.1, 904.1, 908.1,908.2.2, 910.7, 1014.3.6, 1602.9.1(2),A 2.1, C 4.0, C 4.1, C 5.2–C 5.4, C 6.1,
C 7.4–C 7.5, C 8.4.2, C 9.2, E 9.0,E 12.1, E 15.1, H 2.1, L 402.3.1,
Table 610.3, Table 610.4, Table 610.10,
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Table 702.1, Table 702.2(a), Table 702.2(b),Table 703.2, Table 717.1, Table 1014.3.6,Table A 2.1, Table C 4.1, Table C 4.1(1),Table C 5.3, Table C 5.4, Table C 6.1,Table C 9.2, Table E 6.1, Table H 2.1
UNLAWFUL CONNECTIONS . . . . . . .404.1, 602.0, 1205.2UNSANITARY
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .223.0URINALS . . . . . . . . . . . .402.5, 402.6, 403.1, 403.3, 404.1,
405.0, 406.2, 412.0, 413.0, 418.3,601.1, 603.5.1– 603.5.2, 707.4(1),
710.3, 908.2.1, 910.7, 1003.1,1014.1, 1014.3.2.1, 1604.1, 1604.10.2,
1604.10.5, 1604.11.1, 1702.1,1702.9.6, 1702.9.11, 1702.10.1,
E 41.0, E 47.0, K 104.5,L 402.3, L 504.5
USE OF ALTERNATE MATERIAL . . . . . . . . . . . . . . . .301.2USE POINT
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .223.0USER OUTLET
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .223.0
– V –VACUUM BREAKERS . . . . . .224.0, 410.2, 412.1, 601.2.3,
603.3.2, 603.3.5, 603.3.6, 603.4.4,603.5.1, 603.5.5, 603.5.6, 603.5.7,
603.5.9, 603.5.14, 603.5.16,603.5.17, 1308.1, C 7.3, E 77.1,
E 78.1, Table 603.2VACUUM DRAINAGE SYSTEMS . . . . . . . . . . . . . . . .C 7.0VACUUM RELIEF VALVES . . . . . . . . . . .224.0, 504.6, 608.7,
1604.10.3, 1702.9.2VACUUM SYSTEM – LEVEL 1
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .224.0VALIDITY OF CODE . . . . . . . . . . . . . . . . . . . . . . . . . .103.8VALVES
Backwater . . . . . . . .204.0, 710.1, 710.3, 710.6, 904.1,1006.1, 1105.4, 1602.2.4, 1602.9.1,
1702.9.5.5, K 104.4.2, L 504.4.2Ball . . . . . . . . . . . . . . . . . . . .606.1, 606.4, 710.4, 710.6Bathtub filler . . . . . . . . . . . . . . . . . . . . . . . . . . . . .409.5Check . . . .603.5.10, 608.3, 710.4, 710.12.1, 710.13.2,
1004.2, 1208.8.1, 1325.3, F 7.3Combination stop-and-waste . . . . . . . . . . . . . .603.5.18Combination temperatureand pressure-relief . . . . . . . . . . . . . . . . .505.2, 608.3
Combination thermostatic/pressure balancing . . . . . . . . . . . . . . . . .205.0, 408.3
Control . . . . . . . . . . . . . . . . .408.9, 601.1, 606.5–606.6,1303.1, 1327.2, C 7.3
Diaphragm-type . . . . . . .507.21(6), 507.22, 1208.7.5.2Excess flow . . . . . . . . . . . . . . . . . . . . . . .207.0, 1209.0Flow balancing . . . . . . . . . . . . . .L 602.3.4, L 603.4.4.2Flush
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .208.0
Flushometer . . . . . . .208.0, 403.2, 413.1–413.4, 601.1,603.5.1, 610.10, A 3.1, L 402.2.2,
Table 610.10Fullway . . . . . . . . . . . . . . . . . . . . . . . . . . . .606.2, 710.6Gate . . . . . . . .606.1, 606.4, 606.7, 710.3–710.4, 710.6Gray water diverter . . . . . . . . . . . . . . . . . . . . . .1602.2.3Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .310.7Isolation . . . . . . . . .224.0, 1324.4.1, F 5.7, F 7.3, F 8.6Mixing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .417.5Pre-rinse spray . . . . . . . . . . . . . . . . . . . .403.5, L 201.8Pressure-balancing . . . . . . . . . . . . . . . . . .218.0, 408.3Pressure-reducing . . . . . .608.2, 1702.9.6, A 6.2, F 5.7,
F 6.5.1, F 7.3, K 101.5, L 504.5Pressure-relief . . . . . . . . .504.4, 504.6, 505.4.1, 507.5,
507.9, 509.8.3, 608.2–608.6,1320.0, 1321.2, 1324.2, 1324.7,
1327.2, E 18.0, E 19.1,F 5.7–F 5.8, F 6.5.1, F 7.3
Quick-acting . . . . . . . . . . . . . . . . . . . . . . . . . . . .609.10Riser . . . . . . . . . . . . . . . . . . . . . .224.0, 1319.6, 1322.5Service . . . . . . . . . . . . . . . . . . . . . . . . . . .224.0, 1319.8Shutoff . . . . . .504.6, 606.1–606.4, 606.6, 608.4, 609.8,
710.12.1, 1201.1, 1203.3.2, 1208.9–1208.10,1210.2.2.1, 1210.9.1.1, 1210.11, 1211.5,1213.2.5, 1213.6.1.3, 1315.8, 1319.0,
1322.3, 1322.5, 1324.2, 1324.7, 1325.2,1602.9.1, 1702.9.5.5, E 16.0, E 25.0,
E 26.3, E 33.4, E 35.3, E 36.5,E 77.1, E 78.1, F 6.1, F 6.5.1,K 104.4.2, L 402.3.1, L 504.4.2
Source . . . . . .224.0, 1319.4–1319.5, 1322.5, 1326.9.1Temperature relief . . . . . . . .222.0, 504.5–504.6, 505.2Thermostatic . . . . . . . . . . . . . . . . . . . . . . .222.0, 408.3Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .417.2Vacuum interface . . . . . . . . . . . . . . . . . . . . . . . . . .C 7.2Vacuum relief . . . . . . . . . . . . . . . . .224.0, 504.6, 608.7,
1604.10.3, 1702.9.2Zone . . . . . . . . . . . . . . . . . . .224.0, 1319.3.3–1319.3.5,
1319.7, 1320.3(3)VENT, PLUMBING . . . . . . . . . . . . . . . . . . . . . . . .Chapter 9
Below trap weir . . . . . . . . . . . . . . . . . . . . .905.5, 1002.4Branch
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .204.0Buildings over 10 stories . . . . . . . . . . . . . . . . . . . .907.1Changes in direction of . . . . . . . . . . . . . . . . . . . . .903.3Chemical . . . . . . . . . . . . . . . . . . . . .811.2, 811.5–811.6Combination waste andvent system design . . . . . . .205.0, 910.0, Appendix B
Connections . . . . .310.2, 805.0, 905.1–905.2, 908.1.2,908.2.1, 1602.2.3, C 8.2, Table 810.1
ContinuousDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . .205.0
Distance of trap from . . . . . . . . . .1002.2, Table 1002.2Double fitting for . . . . . . . . . . . . . . . . . . . . .704.2, 905.6Engineered . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .911.0
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Expansion joints . . . . . . . . . . . . . . . . . . . . . . . .705.10.2Fittings . . . . . . . . . . . . . . . . . .701.0, 903.1, Table 701.1Fixtures, back-to-back . . . . . . . . . . . . . . . .704.2, 905.6Flagpoling, prohibited . . . . . . . . . . . . . . . . . . . . . .906.3Flashing for . . . . . . . . . . . . . . . .312.8, 701.3(2), 906.1,
906.5, 906.6(2)Frost or snow closure . . . . . . . . . . . . . . . . . . . . . .906.7Grade of . . . . . . . . . . . . . . . . . . . . . .905.1, 905.3, C 8.3Height above fixture . . . . . . . . . . . . . . . . . . . . . . .905.3Height above grade . . . . . . . . . . . . . . . . . . . . . . . .906.4Horizontal . . . . . . . . . . . . . . .904.2, 905.3, Table 703.2Indirect waste . . . . . . . . . . . . . . . . .803.1, 805.1, 902.1Individual
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .211.0Interceptors . . . . . . . . . . . . . . .902.1, 1009.4, 1014.1.1,
1014.2.2, 1016.4, 1017.1Island sinks and fixtures . . . . . . . . . . . . . . . . . . . .909.0Length of . . . . . . . . . . .904.0, Table 702.1, Table 703.2Material for . . . . . . . . . . . . . . . . . . .701.0, 811.2, 903.0,
1602.9.2, Table 701.1Method of installation . . . . . . . . . . . . . . . .310.5, 903.3,
906.2, 906.4Not required . . . . . . . . . . . . . . . . . . . . . . . . . . . . .902.0Not to be used as soil or waste pipe . . . . . . . . . . .310.4Opening location . . . . . . . . . . . . . . . . . . .905.5, 1002.4Parallel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .907.1Piping, support of . . . . . . . . . . . . . . . . . . . . .Table 313.1Prohibited . . . . . . . . . . . . . . . . .310.4, 903.1(1), 903.2.3Relief . . . . . . . . . . . .220.0, 805.0, 907.0, 1009.4, C 8.4Required . . . . . . . . . . . . . . . . . . . . . . . . . . .901.1, 904.1Required separately on every trap . . . . . . . . . . . . . .901.1,
1002.1–1002.2Sizing . . . . . . .703.0, 904.0, 908.1.1–908.1.2, 908.2.2,
910.4, C 6.0, C 9.2, Table 702.1,Table 703.2, Table C 6.1
Special . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .909.0Stack . . . . . . . . . . . . .224.0, 906.1, 907.0, C 6.2, C 9.2Sump . . . . . . . . . . . . . . . . . . . .710.7, 710.10, 710.13.3,
810.1, Table 810.1Support . . . . . . . . . . . . . . . . . . . . . . . . . . . .Table 313.1System
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .224.0Termination . . . . . . . . . . . . . . . . . . . . . . . . .905.4, 906.0Testing . . . . . . . . . . . . . . . . . . . . . . . . . .712.0, 1602.14Trap seal protection . . . . . . . . . . . . . . . . .901.2, 1002.0Undiminished in size through roof . . . . . . .905.4, 907.1Unit loading . . . . . . . . . . . . . . . . . . . . . . . . .Table 703.2Wet, Horizontal . . . . . . . . . . . . . . . . . . . . . . . . . . .908.2Wet, Vertical . . . . . . . . . . . . . . . . . . . . . . . . . . . . .908.1Yoke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .227.0, 907.0
VERTICAL-TO-HORIZONTALDRAINAGE FITTINGS . . . . . .706.4, 905.2–905.3, 909.0
VERTICAL WET VENTING . . . . . . . . . . . . . .(see Wet vent)VIOLATION, NOTICES OF . . . . . . . . . . . . . . . . . .103.5.9.1VITRIFIED CLAY PIPE . . . . . . . . . . .701.1(3), 705.9, 811.2,
Table 701.1, Table 1102.5
– W –WALL, EXTENSION THROUGH . . . . . . . .312.1, 509.6.2.3,
509.8WALL-HUNG FIXTURES, INSTALLATION OF . . . . .402.4,
402.6WASH RACKS, AUTO . . . . . . . . . . . . . . . . . . . . . . . .1011.0WASTES
Anesthetic gas disposal . . . . . . .225.0, 1309.3, 1309.5Chemical . . . . . . . . . . . . . . . . . . .205.0, 811.0, 903.2.3Clear water . . . . . . . . . . . . . . . . . . . . . . . . .205.0, 812.0Condensate . . . . . . . . . . . . . . . . . . .807.2, 807.3, 814.0Continuous . . . . . . . .205.0, 405.2, 408.4, 409.2, 419.2Cooling water . . . . . . . . . . . . . . . . . . . . . . . . . . . .808.0Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225.0Detrimental or harmful . . . . .305.1, 306.1, 714.1, 811.1,
1009.1, H 9.1Flammable . . . . . . . . . . . . . . . . . . . . . . . .1009.1, H 9.1Indirect . . . . . . . . . . . . . . . . . . . . . . . .Chapter 8, 1306.2Industrial . . . . . . . .211.0, 306.0, 811.1, 903.2.3, 1009.1Liquid . . . . . . . . . . . . . . . . . .214.0, 303.0, 304.0, 710.2,
811.1, 1006.1, 1009.1, H 1.2,H 7.1, H 9.1, L 302.0
Materials, pipe . . . . . . . . . . . . . . . . . . . . . .701.0, 811.2Pipe
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .225.0Pretreatment required . . . . . . . . . . . . . . .811.1, 1014.1Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1013.1Special
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . .221.0Swimming pools . . . . . . . . . . . . . . . . . . . . . . . . . .813.1
WATERAdditions to existing work . . . . . . . . .101.11, 610.13(2),
610.13(3)Building supply . . . . .204.0, 602.2, 604.1, 604.8, 604.9,
609.1, 609.6, 609.7, 609.8, 610.8,610.9, A 1.2, A 2.2, A 4.0, A 5.0, A 6.2,
C 4.2, Table 604.1, Table 610.3,Table 610.4, Table A 2.1
Conditioning . . . . . . . . . . . . . . . . . .225.0, 609.5, 610.2,611.4, E 21.0, Table 611.4
Distribution systems . . . . . .225.0, 403.3.1, 417.5, 604.8,606.5, 608.2, 609.8, 610.2, 610.4,
614.0, 801.4, 1604.12.2.2,1702.11.2.2, C 7.6, E 14.1, L 601.1,
L 602.5, L 602.7, L 603.4.3,L 603.4.4.4, L 603.4.7,
Table 603.3.1, Table 604.1,Table 610.3, Table 610.4
Drinking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .601.3.3Filters . . . . . . . . . . . . . . . . .610.2, K 104.2.1, L 504.2.1Identification of potable and nonpotable . . . .601.2, 615.0Main . . . . . . . . . . . . . . . . . .225.0, 608.1, 608.3, 610.7,
610.10–610.11, A 2.1, A 3.2,A 3.4, A 5.3
Materials . . . . . . . . . . . . . . . . . . . . . .604.1, Table 604.1
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PipingGrounding . . . . . . . . . . . . . . . . . . . . . . . . . . .604.9In trenches . . . . . . .314.4, 609.2, 720.0, 1604.10.4Installation of . . . . . . . . . . . . . . . . . . . .602.0, 609.0Materials . . . . . . . . . . . . . . . . . .604.0, Table 604.1Nonpotable . . . . . . . . .601.2, 603.5.11, 610.13(6),
Chapter 16, Chapter 17,E 58.1, L 401.1, L 403.1,
L 501.1, L 601.1Potable . . . . . . . . . . . 601.2, 602.1, 603.2, 603.4.4,
603.5.4, 603.5.6–603.5.7, 603.5.10,603.5.12, 603.5.18, 603.5.21,604.1, 604.5, 604.7, 604.11,
605.1.1, 605.3.4, 605.5, 606.1,607.1, 608.2, 609.9, 610.0,
801.4, 1308.1, C 7.6, E 15.1,E 46.1, L 402.3.1
Sizing . . . . . . . . . . . . . . . . . . . .610.0, Appendix A,Table 610.3, Table 610.4
Tests and inspections . . . . . . . . . . . .103.5.6, 609.4Pressure
Excessive . . . . . . . . . . . . . . . . . . . . . . . . . . . .608.2Inadequate . . . . . . . . . . . . . . . . . . . . . . . . . . .608.1Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .610.2
Prohibited materials . . . . . . . . . . . . . . . . . . . . . . .604.11Protection of potable . . . . . . . . . . . . . . . . . . . . . . .603.0Regulators and relief valves . . . . . . . . . . . .608.2–608.7Required . . . . . . . . . . . . . . . . . . . . . . . . . . .601.1, 610.3Softener . . . . . . . . . . . .609.5, 610.2, 611.4, Table 611.4Supply
Cross-connections . . . . . . . . .601.1, 602.0, 603.0,1602.3, 1604.4, 1702.4,E 58.1, K 102.2, L 502.2
Flushometer valves . . . .(see Flushometer valves)Mobile home andrecreational vehicle parks . . .E 11.0, E 56.0–E 60.0
Required . . . . . . . . . . . . . . . . . . . . . . . . . . . .601.1System
Definition . . . . . . . . . . . . . . . . . . . . . . . . .225.0Temperature-limiting devices . . . . . . .408.3, 409.4,
410.3, 421.2Tests and inspections . . . . . . .103.5, 609.4, 610.2,
1604.12, 1702.11To fixtures . . . . . . .610.0, Table 610.3, Table 610.4Unlawful installations or connections . . .602.1–602.2Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .606.0
Treatment units . . . . . . . . . . . . . . . . . . . . . . . . . . .611.0WATER CLOSETS . . . . . . . . . . .225.0, 310.3, 402.5, 402.6,
403.1–403.2, 404.1, 405.1, 406.1,411.0, 413.2, 413.5, 418.3, 601.1,
603.5.1–603.5.3, 610.11, 710.3, 905.5,908.2, 910.7, 1002.4, 1014.1, 1604.1,
1604.10.5, 1604.11.1, 1702.1, 1702.9.6,1702.9.11, 1702.10.1, A 5.3, C 4.1,
C 5.3, C 7.2.3, C 7.3, C 8.4,
C 9.2–C 9.4, C 9.6, E 41.0,E 43.0, E 45.0–E 50.0,
E 59.1, K 104.5, L 201.14,L 402.2, L 504.5
WATER-CONSERVINGFIXTURES AND FITTINGS . . . . . . . . . . . .403.0, L 402.0
WATER HAMMER ARRESTORS . . . . . . . . . .225.0, 609.10WATER HEATERS . . . . . . . . . . . . . . . . . . . . . . . .Chapter 5
Access . . . . . . . . . . . .504.3.1, 507.13.2, 507.26, 508.1,508.3–508.4, 509.11.5
Approval requirements . . . . . . . . . . . . . . . . . . . . .501.1Cleanouts . . . . . . . . . . . . . . . . . . . . .509.5.6.2, 509.5.9Clearances . . . . . . . . . . . . . . . . . .504.3, 507.6, 507.26,
508.1, 508.2.1Combustion air required . . . . . . . . . . . . . . . . . . . .506.0Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . .604.13Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225.0Fuel gas . . . . . . . . . . . . . .(see Fuel gas water heaters)Inspections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .503.2Installation . . . . . . . . . . . . . . . . . . . . . . . . .504.0, 507.0Location . . . . . . . . . . . . . . . . . . . .504.1, 507.12–507.15Oil-burning and other . . . . . . . . . . . . . . . . . . . . . .505.0Permits required . . . . . . . . . . . . . . . . . . . . . . . . . .502.0Pressure-relief valves . . . . . . . . . . .504.4, 504.6, 505.2,
608.2–608.5Protection . . . . . . . . . . . . . .504.3–504.6, 505.2, 507.2,
507.8, 507.10, 507.13.1, 507.25Relief valve discharge . . . . . . . . . . . . . . . .507.5, 608.5Temperature and pressure-relief valves . . .504.6, 505.2Temperature-limiting devices . . . . . . . . . . . . . . . .504.5Vents . . . . . . . . . . . . . . . . . . . . . . . . . . . . .509.0, 510.0
WATER SOFTENERS . . . .609.5, 610.2, 611.4, Table 611.4WATER TESTS
Building sewers . . . . . . . . . . . . . . . . . . . .103.5.6, 723.0Drainage and vent systems . . . . . . . . . . .103.5.6, 712.2Storm drainage . . . . . . . . . . . . . . . . .1109.2.1, 1109.2.3Water supply systems . . . . . . . .103.5.1, 103.5.6, 609.4
WATER TREATMENT DEVICES . . .(see Water conditioning)WATERPROOFING AND WATERTIGHT
Building sewer . . . . . . . . . . . . . . . . . . . . . . . . . . . .723.1Cleanouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .707.3Connections . . . . . . . . . . . . . . . . . . . . .103.5.6.4, H 7.2Drain pans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .507.4Fixtures . . . . . . . . . . . . . . . .402.2, 408.5, 408.7, 418.2Flashings . . . . . . . . . . . . . . . . . . . .312.8, 906.5, 1105.4Interceptors . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1016.3Joints . . . . . . . . . . . . . . . . . . . . .103.5.6.4, E 7.2, H 6.4,
H 6.6–H 6.7, H 6.10, H 8.4Openings . . . . . . . . . . . . . . . .312.8, 312.10.2, 317.1(1)Sump or receiving tanks . . . . . . . . . . . . . . .710.2, 710.8Tanks . . . . . . . . . . . . . . . . . . .714.5, 1602.9.1, 1602.14,
1702.9.5.1, E 62.1, H 5.3,H 10.2, K 103.3, L 503.3
Vacuum drainage systems . . . . . . . . . . . . . . . . . .C 7.8
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WATER/WASTEWATER UTILITYDefinition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225.0
WEEP HOLES, SUBDRAIN OF SHOWER STALLS . . .408.7WEIGHT OF FLASHING, LEAD . . . . . .701.3, 906.6, 1105.4.1WEIGHTS AND QUALITYOF MATERIALS . . . . . . . . . . . . . . . .301.1, 401.1, 604.1,
701.0, 906.6, 1105.4.1WELDED JOINTS . . .212.0, 605.14.2, 705.8.2, 1208.5.8.1,
1210.1.3, 1210.5, F 11.2, Table 313.1WELDER, PIPE
Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225.0WELL, DISTANCE FROMSEWAGE DISPOSAL . . . . . . . .721.1, H 1.7, Table 721.1,
Table H 1.7WET VENTS . . . . . . . . . . . . . . . .225.0, 315.1, 908.0, 910.6,
B 1.0, C 9.6WHIRLPOOL BATHTUBS . . . . . . . . . . . . . . . .225.0, 409.0WINDOW, TERMINATION OF VENTS FROM . . . . . . .906.2WOODEN SINKS AND TILEWASH TRAYS OR SINKS . . . . . . . . . . . . . . . . . . . . .406.3
WORK, CONCEALED . . . . . . .103.5, 309.2, 402.11, 503.0,509.7.3.2, 1004.1, 1203.2–1203.3,
1210.3, 1211.3.1, 1211.4.4, 1213.2.1,1304.1, 1314.2, 1317.5, 1319.1.1,1326.14–1326.15, 1506.1, F 9.3
WORK, EXISTING . . . . . . . . . .101.6, 101.8, 101.11, 207.0WORK, EXPOSED, WHERE REQUIRED . . . .103.5, 503.2,
1203.2–1203.3WORKMANSHIP . . . . . . . . . . . . . . . . .309.0, 501.1, 609.1,
1208.5.5, 1314.0, H 12.1WRAPPING OF PIPE . . . . . . . . . . .609.3(1), 1210.2, E 32.2WROUGHT IRON (GALVANIZED) . . . . . . . . .312.8, 402.6.1,
604.5–604.6, 701.1(1),707.1, 1101.3, 1208.5.2.2,
1208.5.8.4(2), E 32.1,Table 604.1, Table 707.1
WYE CONNECTIONS. . . . . . . . . . . . . . 414.3, 419.2, 706.0,707.5–707.6, 710.4,
719.4, 907.2, 909.1, 1104.3
– X –X-RAY DARKROOMS . . . . . . . . . . . . . . . . . . . . . . . . .811.8
– Y –YOKE VENTS . . . . . . . . . . . . . . . . . . . . . . . . . .227.0, 907.0
– Z –ZINC ALLOY COMPONENTS . . . . . . .407.4, 1208.5.8.4(7)
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