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International Residential Code
Code Compare
Chapter 1
Scope and Administration
Chapter 2
Definitions
Chapter 3
Building Planning
Chapter 4
Foundations
Chapter 5
Floors
Chapter 6
Wall Construction
Chapter 7
Wall Covering
Chapter 8
Roof-Ceiling Construction
Chapter 9
Roof Assemblies
Chapter 10
Chimneys and Fireplaces
Chapter 11
Building Thermal Envelope and Insulation
Chapter 12
Interior Finishes
Chapter 13
Energy Efficiency
Chapter 14
Exterior Walls
Chapter 15
Roof Assemblies and Rooftop Structures
Chapter 16
Structural Design
Chapter 17
Foundations and Soils
Chapter 18
Concrete
Chapter 19
Steel
Chapter 20
Wood
Chapter 21
Masonry
Chapter 22
Glass and Glazing
Chapter 23
Gypsum Board and Plaster
Chapter 24
Plastics
Chapter 25
Electrical
Chapter 26
Mechanical Systems
Chapter 27
Plumbing Systems
Chapter 28
Elevators
Chapter 29
Encroachments Into Public Right-of-Way
Chapter 30
Safeguards During Construction
Chapter 31
Means of Egress
Chapter 32
Accessibility
Chapter 33
Interior Environment
Chapter 34
Exterior Walls
Chapter 35
Reserved for Future Use
Chapter 36
Referenced Standards
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Home / Code Library / massachusetts / International Residential Code 2021 / Chapter 29
Adopts With Amendments
Chapter 29

Encroachments Into Public Right-of-Way

International Residential Code 2021

[F] 2901 General

Section 2901 — General. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] 2901.1 Water Supply and Distribution

Section 2901.1 — Water Supply and Distribution. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] 2901.1.1 Scope of Water Supply and Distribution

Section 2901.1.1 — Scope of Water Supply and Distribution. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
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[F] 2901.2.1 Water Supply and Distribution Scope

Section 2901.2.1 — Water Supply and Distribution Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
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[F] 2902 Minimum Required Fixtures

Section 2902 — Minimum Required Fixtures. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] 2902.1 Potability

Section 2902.1 — Potability. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] 2902.1.1 Backflow Protection

Section 2902.1.1 — Backflow Protection. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] 2902.2 Cross-connection control

Section 2902.2 — Cross-connection control. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] 2902.3 Backflow protection

Section 2902.3 — Backflow protection. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] 2902.4 Air gap

Section 2902.4 — Air gap. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] 2903 Water Supply System Design Criteria

Section 2903 — Water Supply System Design Criteria. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] 2903.1 Water Supply System Design Criteria

Section 2903.1 — Water Supply System Design Criteria. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] 2903.1.1 Water Supply Source Quality

Section 2903.1.1 — Water Supply Source Quality. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] 2903.2 Maximum pressure

Section 2903.2 — Maximum pressure. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] 2903.3 Water Service Pipe Size

Section 2903.3 — Water Service Pipe Size. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] 2903.4 Water supply pipe sizing

Section 2903.4 — Water supply pipe sizing. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] 2903.7 Size of fixture supply

Section 2903.7 — Size of fixture supply. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] 2903.8 Valves

Section 2903.8 — Valves. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] 2903.9 Water hammer

Section 2903.9 — Water hammer. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] 2904 Materials

Section 2904 — Materials. This section specifies construction material requirements and standards. Refer to the official code for specific material specifications and testing standards. Refer to the official code text for complete requirements.
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[F] 2904.1 Shutoff Valves Required

Section 2904.1 — Shutoff Valves Required. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] 2904.2 Joint and connection materials

Section 2904.2 — Joint and connection materials. This section specifies construction material requirements and standards. Refer to the official code for specific material specifications and testing standards. Refer to the official code text for complete requirements.
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[F] 2905 Water Supply System Installation

Section 2905 — Water Supply System Installation. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] 2905.1 Backflow Protection

Section 2905.1 — Backflow Protection. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] 2906 Valves

Section 2906 — Valves. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] 2906.1 Hot Water Supply

Section 2906.1 — Hot Water Supply. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] 2906.2 Anti-Scald Protection

Section 2906.2 — Anti-Scald Protection. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] 2907 Backflow Prevention

Section 2907 — Backflow Prevention. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] 2907.1 Water Hammer Prevention

Section 2907.1 — Water Hammer Prevention. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] E3901.1 GFCI Protection Required

Section E3901.1 — GFCI Protection Required. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] E3902.1 Bathroom GFCI

Section E3902.1 — Bathroom GFCI. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] E3902.2 Garage and Accessory Building GFCI

Section E3902.2 — Garage and Accessory Building GFCI. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] E3902.3 Outdoor GFCI

Section E3902.3 — Outdoor GFCI. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] E3902.4 Crawl Space GFCI

Section E3902.4 — Crawl Space GFCI. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] E3902.5 Unfinished Basement GFCI

Section E3902.5 — Unfinished Basement GFCI. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] E3902.6 Kitchen GFCI

Section E3902.6 — Kitchen GFCI. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] E3902.8 Laundry and Utility Sink GFCI

Section E3902.8 — Laundry and Utility Sink GFCI. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] P2501.1 General Plumbing Requirements

Section P2501.1 — General Plumbing Requirements. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P2501.2 Workmanship

Section P2501.2 — Workmanship. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] P2502.1 Plumbing Fixtures Required

Section P2502.1 — Plumbing Fixtures Required. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P2503.1 Inspection and Testing

Section P2503.1 — Inspection and Testing. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] P2503.2 DWV Water Test

Section P2503.2 — DWV Water Test. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P2503.3 DWV Air Test

Section P2503.3 — DWV Air Test. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] P2503.7 Water Supply Test

Section P2503.7 — Water Supply Test. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P2801.1 Water Heater Scope

Section P2801.1 — Water Heater Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
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[F] P2803.1 Relief Valves Required

Section P2803.1 — Relief Valves Required. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] P2901.1 IRC Water Supply General

Section P2901.1 — IRC Water Supply General. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P2901.1.1 Water Supply System Design

Section P2901.1.1 — Water Supply System Design. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P2901.2 Water Supply and Distribution Residential

Section P2901.2 — Water Supply and Distribution Residential. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P2902.1 Pipe Materials

Section P2902.1 — Pipe Materials. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P2902.2 Cross-Connection

Section P2902.2 — Cross-Connection. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] P2902.3 Devices and Assemblies

Section P2902.3 — Devices and Assemblies. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] P2902.4 Atmospheric Vacuum Breakers

Section P2902.4 — Atmospheric Vacuum Breakers. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] P2902.5 Air Gap

Section P2902.5 — Air Gap. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] P2903.1 Water Supply System Design Criteria

Section P2903.1 — Water Supply System Design Criteria. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P2903.2 Maximum Flow and Water Consumption

Section P2903.2 — Maximum Flow and Water Consumption. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P2903.3 Water Distribution System Design

Section P2903.3 — Water Distribution System Design. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P2903.3.1 Maximum Flow Rates

Section P2903.3.1 — Maximum Flow Rates. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] P2903.4 Thermal Expansion Control

Section P2903.4 — Thermal Expansion Control. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
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[F] P2903.5 Water Hammer

Section P2903.5 — Water Hammer. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P2904.1 Residential Fire Sprinkler Systems

Section P2904.1 — Residential Fire Sprinkler Systems. This section addresses fire protection and life safety requirements. Specific provisions depend on building type, occupancy, and construction classification. Refer to the official code text for complete requirements.
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[F] P2904.2 Design and Installation - Sprinklers

Section P2904.2 — Design and Installation - Sprinklers. This section addresses fire protection and life safety requirements. Specific provisions depend on building type, occupancy, and construction classification. Refer to the official code text for complete requirements.
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[F] P2905.1 Piping Materials

Section P2905.1 — Piping Materials. This section specifies construction material requirements and standards. Refer to the official code for specific material specifications and testing standards. Refer to the official code text for complete requirements.
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[F] P2905.2 Lead Content

Section P2905.2 — Lead Content. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] P2906.1 General - Water Distribution

Section P2906.1 — General - Water Distribution. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P2906.2 Fixture Shutoff Valves

Section P2906.2 — Fixture Shutoff Valves. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] P2906.4 Water Service Pipe

Section P2906.4 — Water Service Pipe. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P2906.5 CPVC Tubing

Section P2906.5 — CPVC Tubing. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] P2906.6 PEX Tubing

Section P2906.6 — PEX Tubing. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] P2907.1 Hot Water Supply

Section P2907.1 — Hot Water Supply. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P2908.1 Water Hammer Arresters

Section P2908.1 — Water Hammer Arresters. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P2910.1 Nonpotable Water Systems

Section P2910.1 — Nonpotable Water Systems. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P2911.1 Reclaimed Water Systems

Section P2911.1 — Reclaimed Water Systems. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P3001.1 Sanitary Drainage - Scope

Section P3001.1 — Sanitary Drainage - Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
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[F] P3002.1 Drainage Piping Materials

Section P3002.1 — Drainage Piping Materials. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] P3005.1 Drainage Pipe Sizing

Section P3005.1 — Drainage Pipe Sizing. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] R2901.1 Scope Water Supply IRC

Section R2901.1 — Scope Water Supply IRC. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
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[F] R2902.1 Minimum Pressure

Section R2902.1 — Minimum Pressure. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] R2903.1 Hot Water Supply

Section R2903.1 — Hot Water Supply. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
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[F] R2904.1 Backflow Protection

Section R2904.1 — Backflow Protection. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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Code sections are sourced from the International Code Council (ICC) and NFPA. Refer to ICC Digital Codes or NFPA for the authoritative source documents.