ADOPTS WITH AMENDMENTS:

International Residential Code 2018 (IRC 2018)

Part I — Administrative

Part II — Definitions

Part III — Building Planning and Construction

Part IV — Energy Conservation

Part V — Mechanical

Part VI — Fuel Gas

Part VII — Plumbing

Part VIII — Electrical

Part IX — Referenced Standards

Heads up: There are no amended sections in this chapter.

Chapter 31 Vents

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Plumbing requirements under the scope of this subcode shall be regulated by the plumbing subcode, N.J.A.C. 5:23-3.15.

Section P3101 Vent Systems

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P3101.1 General

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P3101.2 Trap Seal Protection

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P3101.2.1 Venting Required

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P3101.3 Use Limitations

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P3101.4 Extension Outside a Structure

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P3101.5 Flood Resistance

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Section P3102 Vent Stacks and Stack Vents

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P3102.1 Required Vent Extension

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P3102.2 Installation

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P3102.3 Size

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Section P3103 Vent Terminals

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P3103.1 Vent Pipes Terminating Outdoors

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P3103.1.1 Roof Extension

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P3103.1.2 Roof Used for Recreational Purposes

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P3103.1.3 Roof Extension Covered

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P3103.1.4 Sidewall Vent Terminal

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P3103.2 Frost Closure

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P3103.3 Flashings and Sealing

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P3103.4 Prohibited Use

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P3103.5 Location of Vent Terminal

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Section P3104 Vent Connections and Grades

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P3104.1 Connection

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P3104.2 Grade

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P3104.3 Vent Connection to Drainage System

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P3104.4 Vertical Rise of Vent

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P3104.5 Height Above Fixtures

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P3104.6 Vent for Future Fixtures

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Section P3105 Fixture Vents

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P3105.1 Distance of Trap From Vent

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P3105.2 Fixture Drains

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P3105.3 Crown Vent Prohibited

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Section P3106 Individual Vent

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P3106.1 Individual Vent Permitted

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Section P3107 Common Vent

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P3107.1 Individual Vent as Common Vent

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P3107.2 Connection at the Same Level

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P3107.3 Connection at Different Levels

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Section P3108 Wet Venting

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P3108.1 Horizontal Wet Vent Permitted

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P3108.2 Dry Vent Connection

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P3108.2.1 Horizontal Wet Vent

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P3108.2.2 Vertical Wet Vent

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P3108.3 Size

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P3108.4 Vertical Wet Vent Permitted

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P3108.5 Trap Weir to Wet-Vent Distances

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Section P3109 Waste Stack Vent

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P3109.1 Waste Stack Vent Permitted

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P3109.2 Stack Installation

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P3109.3 Stack Vent

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P3109.4 Waste Stack Size

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Section P3110 Circuit Venting

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P3110.1 Circuit Vent Permitted

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P3110.2 Vent Connection

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P3110.3 Slope and Size of Horizontal Branch

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P3110.4 Additional Fixtures

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Section P3111 Combination Waste and Vent System

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P3111.1 Type of Fixtures

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P3111.1.1 Single-Fixture Systems

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P3111.2 Installation

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P3111.2.1 Slope

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P3111.2.2 Vent Connection

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P3111.2.3 Vent Size

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P3111.3 Size and Length

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Section P3112 Island Fixture Venting

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P3112.1 Limitation

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P3112.2 Vent Connection

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P3112.3 Vent Installation Below the Fixture Flood Level Rim

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Section P3113 Vent Pipe Sizing

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P3113.1 Size of Vents

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P3113.2 Developed Length

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P3113.3 Branch Vents

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P3113.4 Sump Vents

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P3113.4.1 Sewage Pumps and Sewage Ejectors Other Than Pneumatic

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P3113.4.2 Pneumatic Sewage Ejectors

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Section P3114 Air Admittance Valves

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P3114.1 General

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P3114.2 Installation

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P3114.3 Where Permitted

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P3114.4 Location

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P3114.5 Access and Ventilation

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P3114.6 Size

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P3114.7 Vent Required

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P3114.8 Prohibited Installations

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