Adopts With Amendments
Chapter 3
Piping Installation
International Fuel Gas Code 2021
[F] 301.1 Fuel Gas Appliance Installation - Scope
Section 301.1 — Fuel Gas Appliance Installation - 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] 301.1.1 Combustion Air Required
Section 301.1.1 — Combustion Air 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] 301.10 Piping System Design Criteria
Section 301.10 — Piping System Design Criteria. 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] 301.11 Electrical Bonding IFGC
Section 301.11 — Electrical Bonding IFGC. 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] 301.12 CSST Bonding
Section 301.12 — CSST Bonding. 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] 301.2 Piping System Design Criteria
Section 301.2 — Piping System Design Criteria. 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] 301.2.1 Piping System Design Criteria
Section 301.2.1 — Piping System Design Criteria. 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] 301.3 Listed and Labeled
Section 301.3 — 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] 301.3.1 IFGC Elevation of Ignition Sources
Section 301.3.1 — IFGC Elevation of Ignition 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] 301.4 Listed and Labeled
Section 301.4 — 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] 301.5 Modifications
Section 301.5 — Modifications. 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] 301.6 Contaminated gas
Section 301.6 — Contaminated gas. This section covers fuel gas piping and equipment requirements. Refer to the official code text for complete requirements.
[F] 301.7 Prohibited Sources
Section 301.7 — 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] 301.8 Fuel Gas Detection Systems
Section 301.8 — Fuel Gas Detection Systems. This section covers fuel gas piping and equipment requirements. Refer to the official code text for complete requirements.
[F] 301.9 Electrical Bonding
Section 301.9 — Electrical Bonding. 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] 302.1 General definitions
Section 302.1 — General 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] 302.1.1 IFGC Masonry Chimney Construction
Section 302.1.1 — IFGC Masonry Chimney Construction. 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] 302.2 Conflicts
Section 302.2 — Conflicts. 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] 302.2.1 Metallic Pipe
Section 302.2.1 — Metallic 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.
[F] 302.3 Appliance Connections
Section 302.3 — Appliance Connections. 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] 302.3.1 Metallic Tubing
Section 302.3.1 — Metallic 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.
[F] 302.4 Plastic Pipe and Tubing
Section 302.4 — Plastic Pipe and Tubing. 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] 302.4.1 CSST
Section 302.4.1 — CSST. 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] 302.5 Piping Through Foundation Walls
Section 302.5 — Piping Through Foundation Walls. 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] 302.5.1 Plastic Pipe
Section 302.5.1 — Plastic 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.
[F] 303 Appliance Location
Section 303 — Appliance Location. 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] 303.1 Prohibited Locations — Fuel Gas
Section 303.1 — Prohibited Locations — Fuel Gas. This section covers fuel gas piping and equipment requirements. Refer to the official code text for complete requirements.
[F] 303.1.1 Appliance Location Restrictions
Section 303.1.1 — Appliance Location Restrictions. 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] 303.1.2 Garages
Section 303.1.2 — Garages. 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] 303.1.3 Outdoor Installation
Section 303.1.3 — Outdoor Installation. 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] 303.2 Clearances from Combustible Construction
Section 303.2 — Clearances from Combustible Construction. 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] 303.2.1 All Air From Outdoors Single Opening
Section 303.2.1 — All Air From Outdoors 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] 303.3 Prohibited Locations
Section 303.3 — Prohibited Locations. 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] 303.3.1 Branch Length Method
Section 303.3.1 — Branch Length 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] 303.4 Appliances Under Floors
Section 303.4 — Appliances Under Floors. 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] 303.5 Under-floor installation
Section 303.5 — Under-floor installation. 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] 303.6 Indoor installation
Section 303.6 — Indoor installation. 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] 303.7 Operating Temperature IFGC
Section 303.7 — Operating Temperature IFGC. 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] 303.8 Appliances on roofs
Section 303.8 — Appliances on roofs. 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] 304 Combustion Air
Section 304 — 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] 304.1 General Piping Installation Requirements
Section 304.1 — General Piping Installation Requirements. 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] 304.1.1 Combination Indoor and Outdoor Air
Section 304.1.1 — Combination Indoor and 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] 304.1.2 Indoor Air Method
Section 304.1.2 — Indoor Air 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] 304.1.3 Outdoor Air Method
Section 304.1.3 — Outdoor Air 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] 304.10 Mechanical Combustion Air Supply
Section 304.10 — 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] 304.2 Indoor Combustion Air
Section 304.2 — 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] 304.2.1 Underground Piping
Section 304.2.1 — Underground Piping. 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] 304.3 Outdoor Combustion Air
Section 304.3 — 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] 304.3.1 Piping in Concealed Locations
Section 304.3.1 — Piping in Concealed Locations. 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] 304.4 Outdoor Combustion Air - Two Openings
Section 304.4 — 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] 304.4.1 Piping Through Foundation
Section 304.4.1 — Piping Through Foundation. 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] 304.5 Indoor Combustion Air
Section 304.5 — 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] 304.6 Outdoor Combustion Air
Section 304.6 — 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] 304.7 Combination Indoor and Outdoor Air
Section 304.7 — Combination Indoor and 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] 304.8 Mechanical Combustion Air Supply
Section 304.8 — 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] 305.1 General - Accessibility
Section 305.1 — General - Accessibility. This section addresses accessibility requirements for persons with disabilities. Refer to the official code text for complete requirements.
[F] 305.1.1 Mechanical Combustion Air Supply
Section 305.1.1 — 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] 305.2 Gas Piping Sizing
Section 305.2 — Gas Piping Sizing. This section covers fuel gas piping and equipment requirements. Refer to the official code text for complete requirements.
[F] 305.3 Clearance Reduction Methods
Section 305.3 — Clearance Reduction Methods. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] 305.4 Piping Through Foundations
Section 305.4 — Piping Through Foundations. 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] 305.5 Electrical Requirements
Section 305.5 — Electrical Requirements. 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] 305.6 Piping Exposed to Physical Damage
Section 305.6 — Piping Exposed to Physical Damage. 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] 305.7 Piping in Concealed Locations
Section 305.7 — Piping in Concealed Locations. 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] 306.1 Access and Working Space
Section 306.1 — Access and Working Space. 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] 306.1.1 Gas Piping in Concealed Locations
Section 306.1.1 — Gas Piping in Concealed Locations. This section covers fuel gas piping and equipment requirements. Refer to the official code text for complete requirements.
[F] 306.2 Appliances Under Floors
Section 306.2 — Appliances Under Floors. 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] 306.2.1 Drip Location
Section 306.2.1 — Drip Location. 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] 306.3 Appliances in Attics
Section 306.3 — Appliances in Attics. 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] 306.4 Piping through foundation walls
Section 306.4 — Piping through foundation walls. 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] 306.5 Equipment on Roofs
Section 306.5 — Equipment on Roofs. 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] 307.1 Garages - Gas Appliance Installation
Section 307.1 — Garages - Gas Appliance Installation. This section covers fuel gas piping and equipment requirements. Refer to the official code text for complete requirements.
[F] 307.2 Condensate Pumps
Section 307.2 — Condensate Pumps. 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] 307.3 Drain Materials
Section 307.3 — Drain 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.
[F] 307.4 Combination Indoor-Outdoor Air
Section 307.4 — Combination Indoor-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] 307.5 Detection of leaks
Section 307.5 — Detection of leaks. 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] 308.1 Appliance Connections to Building Piping
Section 308.1 — Appliance Connections to Building Piping. 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] 308.1.1 Gas Piping Through Foundation Walls
Section 308.1.1 — Gas Piping Through Foundation Walls. 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] 308.2 CSST Gas Piping Installation
Section 308.2 — CSST Gas Piping Installation. This section covers fuel gas piping and equipment requirements. Refer to the official code text for complete requirements.
[F] 308.3 Vent Termination
Section 308.3 — Vent Termination. 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] 308.4 Existing Venting Systems
Section 308.4 — Existing Venting Systems. 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] 308.6 Clearance Reduction Methods
Section 308.6 — Clearance Reduction Methods. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] 309.1 IFGC Electrical Bonding
Section 309.1 — IFGC Electrical Bonding. 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] 309.2 Meter protection
Section 309.2 — Meter 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] 310.1 Electrical Connections
Section 310.1 — Electrical Connections. 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] 310.1.1 CSST Bonding
Section 310.1.1 — CSST Bonding. 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] 310.2 Emergency shutoff valves
Section 310.2 — Emergency 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.
[F] 310.3 Valve access
Section 310.3 — Valve access. 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] 311.1 Appliance Connectors
Section 311.1 — Appliance Connectors. 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] 311.2 Gas Piping Pressure Testing
Section 311.2 — Gas Piping Pressure Testing. This section covers fuel gas piping and equipment requirements. Refer to the official code text for complete requirements.
[F] 312.1 Appliance Connections
Section 312.1 — Appliance Connections. 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] 312.2 Piping Inspection and Testing
Section 312.2 — Piping 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.
[F] 313.1 Appliance Shutoff Valves
Section 313.1 — Appliance 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.
[F] 313.2 Gas Piping in Earthquake Zones
Section 313.2 — Gas Piping in Earthquake Zones. This section covers fuel gas piping and equipment requirements. Refer to the official code text for complete requirements.
[F] 314.1 Gas Piping Material Standards
Section 314.1 — Gas Piping Material Standards. 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] 315.1 Gas Pipe Fittings
Section 315.1 — Gas Pipe Fittings. 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] 316.1 Prohibited Gas Pipe Materials
Section 316.1 — Prohibited Gas 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.
[F] 317.1 Polyethylene Plastic Pipe
Section 317.1 — Polyethylene Plastic 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.
[F] 406.1 Gas Pressure Test
Section 406.1 — Gas Pressure Test. This section covers fuel gas piping and equipment requirements. Refer to the official code text for complete requirements.
[F] 406.2 Test Duration
Section 406.2 — Test Duration. 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] 408.1 Purging Requirements
Section 408.1 — Purging Requirements. 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.
Code sections are sourced from the International Code Council (ICC) and NFPA. Refer to ICC Digital Codes or NFPA for the authoritative source documents.