Adopts With Amendments
Chapter 17
Foundations and Soils
International Residential Code 2021
[F] 1701.1 Scope
Section 1701.1 — Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] 1701.1.1 Scope of Combustion Air
Section 1701.1.1 — Scope of Combustion Air. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] 1701.1.2 Inspector Qualifications
Section 1701.1.2 — Inspector Qualifications. 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.
[F] 1701.1.3 Concrete Testing
Section 1701.1.3 — Concrete Testing. 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.
[F] 1701.1.4 Steel Inspections
Section 1701.1.4 — Steel Inspections. 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.
[F] 1701.1.5 Masonry Inspections
Section 1701.1.5 — Masonry Inspections. 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.
[F] 1701.2 Indoor Combustion Air
Section 1701.2 — Indoor Combustion Air. 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.
[F] 1701.2.1 Structural Tests and Special Inspections Scope
Section 1701.2.1 — Structural Tests and Special Inspections Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] 1702.1 Outdoor Combustion Air
Section 1702.1 — Outdoor Combustion Air. 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.
[F] 1702.1.1 Special Inspections General
Section 1702.1.1 — Special Inspections 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.
[F] 1702.2 Adjoining Spaces
Section 1702.2 — Adjoining Spaces. 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.
[F] 1702.2.1 Structural Observation
Section 1702.2.1 — Structural Observation. This section covers structural design and loading requirements. Specific values and calculation methods are defined in the official code text. Refer to the official code text for complete requirements.
[F] 1703.1 Outside Air - Direct Openings
Section 1703.1 — Outside Air - Direct Openings. 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.
[F] 1703.1.1 Concrete Testing
Section 1703.1.1 — Concrete Testing. 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.
[F] 1703.2 Outside Air - Horizontal Ducts
Section 1703.2 — Outside Air - Horizontal Ducts. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] 1703.2.1 Steel Testing and Inspection
Section 1703.2.1 — Steel Testing and Inspection. 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.
[F] 1703.3 Outside Air - Vertical Ducts
Section 1703.3 — Outside Air - Vertical Ducts. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] 1704.1 Mechanical Combustion Air
Section 1704.1 — Mechanical Combustion Air. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] E3401.1 Applicability - Electrical General
Section E3401.1 — Applicability - Electrical General. This section covers electrical installation requirements. Specific conductor sizing, circuit protection, and installation methods are in the official code. Refer to the official code text for complete requirements.
[F] E3401.2 Scope
Section E3401.2 — Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] E3402.1 Electrical Definitions
Section E3402.1 — Electrical Definitions. This section provides definitions relevant to the code. Defined terms have specific meanings that affect how requirements are applied throughout the code. Refer to the official code text for complete requirements.
[F] E3403.1 Listed and Labeled
Section E3403.1 — Listed and Labeled. 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.
[F] E3404.1 General - Services
Section E3404.1 — General - Services. 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.
[F] E3404.2 Service Size
Section E3404.2 — Service Size. 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.
[F] E3405.1 General - Branch Circuits
Section E3405.1 — General - Branch Circuits. This section covers electrical installation requirements. Specific conductor sizing, circuit protection, and installation methods are in the official code. Refer to the official code text for complete requirements.
[F] E3405.2 Branch Circuit Ratings
Section E3405.2 — Branch Circuit Ratings. This section covers electrical installation requirements. Specific conductor sizing, circuit protection, and installation methods are in the official code. Refer to the official code text for complete requirements.
[F] E3405.3 Ground-Fault Circuit-Interrupter Protection
Section E3405.3 — Ground-Fault Circuit-Interrupter Protection. This section covers electrical installation requirements. Specific conductor sizing, circuit protection, and installation methods are in the official code. Refer to the official code text for complete requirements.
[F] E3405.4 Arc-Fault Circuit-Interrupter Protection
Section E3405.4 — Arc-Fault Circuit-Interrupter Protection. This section covers electrical installation requirements. Specific conductor sizing, circuit protection, and installation methods are in the official code. Refer to the official code text for complete requirements.
[F] E3406.1 General - Required Outlets
Section E3406.1 — General - Required Outlets. 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.
[F] E3406.2 General-Use Receptacle Distribution
Section E3406.2 — General-Use Receptacle Distribution. This section establishes occupancy classification and use requirements that determine applicable building code provisions. Refer to the official code text for complete requirements.
[F] E3406.3 Kitchen and Dining Area Receptacles
Section E3406.3 — Kitchen and Dining Area Receptacles. This section covers allowable building height, area, and number of stories based on construction type and occupancy. Refer to the official code text for complete requirements.
[F] E3406.4 Bathroom Receptacles
Section E3406.4 — Bathroom Receptacles. 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.
[F] E3406.5 Outdoor Receptacles
Section E3406.5 — Outdoor Receptacles. 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.
[F] E3407.1 Lighting Outlets Required
Section E3407.1 — Lighting Outlets 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.
[F] E3407.2 Kitchen Lighting
Section E3407.2 — Kitchen Lighting. 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.
[F] E3408.1 Grounding Electrode System
Section E3408.1 — Grounding Electrode System. 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.
[F] E3409.1 General - Smoke and Carbon Monoxide Alarms
Section E3409.1 — General - Smoke and Carbon Monoxide Alarms. 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.
[F] M1701.1 Combustion Air IRC Scope
Section M1701.1 — Combustion Air IRC Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] M1701.1.1 Combustion Air Sources
Section M1701.1.1 — Combustion Air Sources. 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.
[F] M1701.2 Indoor Combustion Air
Section M1701.2 — Indoor Combustion Air. 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.
[F] M1701.3 Outdoor Air
Section M1701.3 — Outdoor Air. 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.
[F] M1701.4 Outdoor Combustion Air Two Openings
Section M1701.4 — Outdoor Combustion Air Two Openings. 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.
[F] M1701.5 Outdoor Combustion Air Single Opening
Section M1701.5 — Outdoor Combustion Air Single Opening. 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.
[F] M1701.6 Mechanical Combustion Air
Section M1701.6 — Mechanical Combustion Air. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] M1701.7 Combustion Air Ducts
Section M1701.7 — Combustion Air Ducts. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] M1701.8 Prohibited Sources
Section M1701.8 — Prohibited Sources. 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.
[F] M1702.1 Inside Air
Section M1702.1 — Inside Air. 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.
[F] M1702.2 Indoor Air Volume
Section M1702.2 — Indoor Air Volume. 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.
[F] M1702.3 Indoor Air from Adjacent Spaces
Section M1702.3 — Indoor Air from Adjacent Spaces. 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.
[F] M1702.4 One Permanent Opening Method
Section M1702.4 — One Permanent Opening Method. 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.
[F] M1703.1 Outside Combustion Air
Section M1703.1 — Outside Combustion Air. 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.
[F] M1703.2 Direct vent combustion air
Section M1703.2 — Direct vent combustion air. 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.
[F] M1703.3 Outdoor Air - Single Opening
Section M1703.3 — Outdoor Air - Single Opening. 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.
[F] M1704.1 Mechanical Combustion Air
Section M1704.1 — Mechanical Combustion Air. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] M1704.2 Interlocking Controls
Section M1704.2 — Interlocking Controls. 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.
[F] M1704.3 Direct Vent Appliances
Section M1704.3 — Direct Vent Appliances. 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.
[F] M1705.1 Mechanical Combustion Air Supply
Section M1705.1 — Mechanical Combustion Air Supply. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] M1705.2 Interlocked Operation
Section M1705.2 — Interlocked Operation. 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.
[F] M1801.1 Venting Scope
Section M1801.1 — Venting Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] M1801.2 Venting Required
Section M1801.2 — Venting 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.
[F] M1802.1 Vent Connectors General
Section M1802.1 — Vent Connectors 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.
[F] M1802.2 Connector Slope
Section M1802.2 — Connector Slope. 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.
[F] M1803.1 Chimney Termination Height
Section M1803.1 — Chimney Termination Height. This section covers allowable building height, area, and number of stories based on construction type and occupancy. Refer to the official code text for complete requirements.
[F] M1803.2 Chimney Clearances
Section M1803.2 — Chimney Clearances. 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.
[F] M1803.3 Chimney Flue Lining
Section M1803.3 — Chimney Flue Lining. 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.
[F] P2701.1 Plumbing Fixtures General
Section P2701.1 — Plumbing Fixtures 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.
[F] P2702.1 Minimum Fixtures Required
Section P2702.1 — Minimum Fixtures 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.
[F] R1701.1 Scope - Combustion Air
Section R1701.1 — Scope - Combustion Air. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] R1701.2 Design Standard
Section R1701.2 — Design Standard. 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.
[F] R1701.3 Sprinkler Coverage
Section R1701.3 — Sprinkler Coverage. 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.
[F] R1701.4 Water Supply for Sprinklers
Section R1701.4 — Water Supply for 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.
[F] R1701.5 Freeze Protection for Sprinklers
Section R1701.5 — Freeze Protection for 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.
[F] R1702.1 Inside Air
Section R1702.1 — Inside Air. 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.
[F] R1702.2 Outdoor Combustion Air
Section R1702.2 — Outdoor Combustion Air. 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.
[F] R1702.3 Combination Indoor/Outdoor
Section R1702.3 — Combination Indoor/Outdoor. 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.
[F] R1703.1 Weather Protection
Section R1703.1 — Weather 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.
[F] R1703.2 Flashing
Section R1703.2 — Flashing. 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.
[F] R1703.3 Water-Resistive Barrier
Section R1703.3 — Water-Resistive Barrier. 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.
[F] R1703.4 Weep Holes
Section R1703.4 — Weep Holes. 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.
[F] R1704.1 Installation of Wall Coverings
Section R1704.1 — Installation of Wall Coverings. 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.
[F] R313.1 Residential Fire Sprinkler Systems
Section R313.1 — 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.
[F] R313.2 One- and Two-Family Dwelling Sprinklers
Section R313.2 — One- and Two-Family Dwelling 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.
[F] R314.1 Smoke Alarms General
Section R314.1 — Smoke Alarms General. 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.
[F] R314.3 Smoke Alarm Location
Section R314.3 — Smoke Alarm Location. 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.
[F] R314.4 Smoke Alarm Power Source
Section R314.4 — Smoke Alarm Power Source. 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.
[F] R315.1 Carbon Monoxide Alarms General
Section R315.1 — Carbon Monoxide Alarms General. 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.
[F] R315.3 CO Alarm Location
Section R315.3 — CO Alarm Location. 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.
Code sections are sourced from the International Code Council (ICC) and NFPA. Refer to ICC Digital Codes or NFPA for the authoritative source documents.