2021 International Fuel Gas Code – IFGC-2021
The 2021 International Fuel Gas Code® (IFGC) provides comprehensive requirements for the design and installation of fuel gas systems in residential, commercial, and industrial buildings. It governs piping, appliances, combustion air, chimneys, vents, and gaseous hydrogen systems, ensuring safe and efficient fuel gas usage across all occupancies. Fully aligned with the 2021 I-Code suite.
Highlights:
- Regulates natural gas systems up to 125 psig and LP-gas up to 20 psig from point of delivery to appliance shutoff
- Includes complete standards for gaseous hydrogen systems in Chapter 7
- Covers installation, combustion air, and venting for a wide range of fuel gas appliances
- Supports both prescriptive and engineered design methods for air supply, venting, and pipe sizing
- Provides appendices for gas pipe and vent sizing, inspection procedures, and appeals processes
- References updated technical standards from ASME, ANSI, AGA, CSA, and NFPA
- Revised administration chapter clarifies enforcement roles, jurisdictional edits, and appeals
Who It’s For:
Mechanical engineers, gas system designers, inspectors, code officials, and utility providers responsible for safe and compliant gas system installations.
IFGC-2021
2021 International Fuel Gas Code – IFGC-2021
The 2021 International Fuel Gas Code® (IFGC) provides comprehensive requirements for the design and installation of fuel gas systems in residential, commercial, and industrial buildings. It governs piping, appliances, combustion air, chimneys, vents, and gaseous hydrogen systems, ensuring safe and efficient fuel gas usage across all occupancies. Fully aligned with the 2021 I-Code suite.
Highlights:
- Regulates natural gas systems up to 125 psig and LP-gas up to 20 psig from point of delivery to appliance shutoff
- Includes complete standards for gaseous hydrogen systems in Chapter 7
- Covers installation, combustion air, and venting for a wide range of fuel gas appliances
- Supports both prescriptive and engineered design methods for air supply, venting, and pipe sizing
- Provides appendices for gas pipe and vent sizing, inspection procedures, and appeals processes
- References updated technical standards from ASME, ANSI, AGA, CSA, and NFPA
- Revised administration chapter clarifies enforcement roles, jurisdictional edits, and appeals
Who It’s For:
Mechanical engineers, gas system designers, inspectors, code officials, and utility providers responsible for safe and compliant gas system installations.
IFGC-2021
2021 International Plumbing Code – IPC-2021
The 2021 International Plumbing Code® (IPC) establishes minimum standards for the design, installation, and inspection of plumbing systems in all building types—except one- and two-family dwellings and townhouses up to three stories, which are covered under the IRC. This code supports both prescriptive and performance-based approaches and promotes innovation in materials and design.
Highlights:
- Permits multiple-user all-gender toilet facilities
- Adds two approved methods for sewer relining and rehabilitation
- Allows rooftop solar panels to be installed over vent terminals
- Recognizes CSA B805/ICC 805 for rainwater harvesting system design
- Integrates accessibility provisions from ICC A117.1-2017
- Covers potable and nonpotable water, sanitary and storm drainage, venting, water heaters, and graywater systems
- Structured into prescriptive chapters with appendices and accessibility references
- Fully aligned with the 2021 I-Codes for unified plumbing regulation and enforcement
Who It’s For:
Plumbing engineers, contractors, inspectors, and code officials working on compliant, modern plumbing systems in commercial and multifamily buildings.
IPC-2021
2021 International Plumbing Code – IPC-2021
The 2021 International Plumbing Code® (IPC) establishes minimum standards for the design, installation, and inspection of plumbing systems in all building types—except one- and two-family dwellings and townhouses up to three stories, which are covered under the IRC. This code supports both prescriptive and performance-based approaches and promotes innovation in materials and design.
Highlights:
- Permits multiple-user all-gender toilet facilities
- Adds two approved methods for sewer relining and rehabilitation
- Allows rooftop solar panels to be installed over vent terminals
- Recognizes CSA B805/ICC 805 for rainwater harvesting system design
- Integrates accessibility provisions from ICC A117.1-2017
- Covers potable and nonpotable water, sanitary and storm drainage, venting, water heaters, and graywater systems
- Structured into prescriptive chapters with appendices and accessibility references
- Fully aligned with the 2021 I-Codes for unified plumbing regulation and enforcement
Who It’s For:
Plumbing engineers, contractors, inspectors, and code officials working on compliant, modern plumbing systems in commercial and multifamily buildings.
IPC-2021

