International Fuel Gas Code (IFGC) 2021 (International Code Council Series)
The 2021 International Fuel Gas Code is a practical technical reference for professionals responsible for designing, installing, maintaining, reviewing, or inspecting fuel-gas systems and gas-fired appliances. Published by the International Code Council, it establishes minimum requirements through coordinated prescriptive and performance-related provisions.
The code covers fuel-gas distribution piping, approved piping materials, pipe sizing, pressure regulators, appliance connections, shutoff valves, testing, purging, combustion air, chimneys, vents, and appliance venting systems. It also includes requirements for specific appliances, gaseous hydrogen systems, and motor-vehicle gaseous-fuel-dispensing facilities.
The IFGC addresses natural gas, liquefied petroleum gas, manufactured gas, and mixtures of these gases. Appendices provide additional guidance for determining gas-piping capacity, sizing venting systems, locating vent terminals, and inspecting existing appliance installations. These sections make the book useful for both code research and practical field applications.
Notable changes in the 2021 edition include marking requirements for concealed condensate-piping terminations, acceptance of press-connect joints for certain high-pressure indoor applications, and restrictions on commercial cooking appliances within dwelling units.
This edition is valuable for fuel-gas contractors, HVAC professionals, mechanical engineers, architects, inspectors, plans examiners, code officials, facility managers, instructors, apprentices, and students. It can support system design, permit preparation, piping calculations, appliance installation, inspection work, training, and examination study where the 2021 IFGC is specified.
The chapter-based arrangement helps readers find relevant provisions quickly, whether working in an office, classroom, workshop, or on a jobsite.
Code adoption and local amendments vary. Buyers should confirm that the 2021 edition applies to their jurisdiction, project, employer, course, or examination.
Order one copy for professional or educational use, or request bulk pricing for contractors, engineering firms, building departments, colleges, training centers, libraries, and resellers.
Key Features
- Complete 2021 International Fuel Gas Code
- Published by the International Code Council
- Covers fuel-gas piping design and installation
- Includes pipe-sizing and material requirements
- Addresses testing, purging, and shutoff valves
- Covers appliance installation and connections
- Includes combustion-air requirements
- Addresses chimneys, vents, and appliance venting
- Covers specific gas-fired appliances
- Includes gaseous hydrogen system provisions
- Useful for professionals, officials, and students
- Available for individual purchase and bulk orders
Frequently Asked Questions
1. What is the 2021 International Fuel Gas Code?
The 2021 IFGC is a model code establishing minimum requirements for fuel-gas systems and gas-fired appliances through prescriptive and performance-related provisions.
2. What systems does the book cover?
It covers fuel-gas distribution piping, appliances, appliance venting, combustion air, gaseous hydrogen systems, and motor-vehicle gaseous-fuel-dispensing stations.
3. What types of fuel gas are addressed?
The IFGC addresses natural gas, liquefied petroleum gas, manufactured gas, and mixtures of these gases.
4. What is the correct ISBN for the softcover edition?
The correct softcover ISBN-13 is 9781609839666, and the ISBN-10 is 1609839668. The originally supplied ISBN, 9781609839635, belongs to the loose-leaf 2021 International Plumbing Code.
5. How many pages are in this edition?
ICC lists the 2021 International Fuel Gas Code at 200 pages.
6. Does the IFGC apply to residential buildings?
Yes. The code applies to all occupancies, including one- and two-family dwellings and townhouses. Fuel-gas provisions in the IRC are derived from the IFGC.
7. Can this book be used for an ICC or licensing examination?
It may be suitable when an examination specifically lists the 2021 IFGC. Candidates should confirm the required edition, binding, permitted tabs, and note-taking rules with the examination provider.
8. Is bulk ordering available?
Yes. Customers may purchase a single copy or request bulk pricing for contractors, engineering firms, inspection departments, colleges, training centers, libraries, and resellers.



















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