International Fuel Gas Code IFGC Study
Guide | Scope, Application & Compliance
Practice Questions
2026/2027
,What is the title of the regulations referred to in Section The Fuel Gas Code of [NAME OF JURISDICTION].
101?
What is the scope of the Fuel Gas Code according to It applies to the installation of fuel-gas piping systems, fuel gas appliances, gaseous
Section 101.2? hydrogen systems, and related accessories.
What types of dwellings are exempt from the Fuel Gas Detached one- and two-family dwellings and townhouses not more than three
Code? stories above grade plane in height, with separate means of egress.
What is the maximum operating pressure for natural gas 125 pounds per square inch gauge (psig) or less.
piping systems covered by this code?
What is the maximum operating pressure for LP-gas piping 20 psig or less.
systems covered by this code?
What does the scope of the piping system regulations Design, materials, components, fabrication, assembly, installation, testing,
include? inspection, operation, and maintenance.
What requirements are included for gas appliances Installation, combustion and ventilation air, venting, and connections to piping
according to Section 101.2.3? systems.
List three types of systems or equipment that are outside 1. Portable LP-gas appliances not connected to a fixed system. 2. Installation of
the scope of the Fuel Gas Code. farm appliances like brooders and dryers. 3. Industrial gas applications using gases
like acetylene and hydrogen.
What is the purpose of the appendices in the Fuel Gas Provisions in the appendices shall not apply unless specifically adopted.
Code?
What governs the design and installation of mechanical The International Mechanical Code.
systems operating with fuels other than fuel gas?
What is the significance of Section 101.4 in the Fuel Gas It states the purpose of the code.
Code?
What types of installations are specifically excluded from LP-gas installations at utility gas plants and temporary LP-gas piping for buildings
the Fuel Gas Code regarding LP-gas? under construction.
What is the coverage of gaseous hydrogen systems Gaseous hydrogen systems shall be regulated by Chapter 7.
according to Section 101.2.1?
What is the requirement for piping systems for mixtures of They must have an operating pressure greater than 10 psig (69 kPa gauge) to be
gas and air? outside the scope.
What types of equipment are excluded from the Fuel Gas Equipment such as gas-generating sets, compressors, and calorimeters.
Code in terms of proprietary items?
, What is the coverage of the Fuel Gas Code regarding LNG installations are specifically excluded from the code.
liquefied natural gas (LNG) installations?
What does Section 101.2.4 state about building design It is outside the scope of the Fuel Gas Code, except as specified.
and construction?
What is the significance of Section 401.1.1 in relation to It specifies exceptions for gas piping, meters, and other appurtenances used by the
gas piping? serving gas supplier.
What types of portable appliances are excluded from the Portable fuel cell appliances that are neither connected to a fixed piping system nor
Fuel Gas Code? interconnected to a power grid.
What is the maximum height for accessory structures to Accessory structures must not be more than three stories above grade plane.
comply with the Fuel Gas Code?
What is the primary focus of the Fuel Gas Code? To regulate the installation of fuel-gas piping systems and related appliances.
What does the term 'appurtenances' refer to in the context Items such as gas piping, meters, and gas pressure regulators used in gas
of the Fuel Gas Code? distribution.
What is the exception for raw material applications in the They are excluded except for piping to special atmosphere generators.
Fuel Gas Code?
What is the purpose of the code regarding fuel gas To establish minimum requirements for safety, health, property protection, and
equipment or systems? general welfare by regulating design, construction, installation, quality of materials,
location, operation, and maintenance.
What does Section 101.5 state about severability? If any part of the code is held unconstitutional, it does not affect the validity of the
remaining portions.
What governs in case of a conflict between general and The specific requirement shall govern.
specific requirements in the code?
What is stated in Section 102.2 regarding existing The code does not require the removal, alteration, or abandonment of existing
installations? installations lawfully in existence at the time of adoption.
What governs additions, alterations, renovations, or repairs They shall be regulated by the International Existing Building Code.
related to structural issues?
What is required for the maintenance of installations Installations must be maintained in proper operating condition in accordance with
according to Section 102.3? the original design and in a safe condition.
Who is responsible for the maintenance of installations? The owner or the owner's authorized agent.
Guide | Scope, Application & Compliance
Practice Questions
2026/2027
,What is the title of the regulations referred to in Section The Fuel Gas Code of [NAME OF JURISDICTION].
101?
What is the scope of the Fuel Gas Code according to It applies to the installation of fuel-gas piping systems, fuel gas appliances, gaseous
Section 101.2? hydrogen systems, and related accessories.
What types of dwellings are exempt from the Fuel Gas Detached one- and two-family dwellings and townhouses not more than three
Code? stories above grade plane in height, with separate means of egress.
What is the maximum operating pressure for natural gas 125 pounds per square inch gauge (psig) or less.
piping systems covered by this code?
What is the maximum operating pressure for LP-gas piping 20 psig or less.
systems covered by this code?
What does the scope of the piping system regulations Design, materials, components, fabrication, assembly, installation, testing,
include? inspection, operation, and maintenance.
What requirements are included for gas appliances Installation, combustion and ventilation air, venting, and connections to piping
according to Section 101.2.3? systems.
List three types of systems or equipment that are outside 1. Portable LP-gas appliances not connected to a fixed system. 2. Installation of
the scope of the Fuel Gas Code. farm appliances like brooders and dryers. 3. Industrial gas applications using gases
like acetylene and hydrogen.
What is the purpose of the appendices in the Fuel Gas Provisions in the appendices shall not apply unless specifically adopted.
Code?
What governs the design and installation of mechanical The International Mechanical Code.
systems operating with fuels other than fuel gas?
What is the significance of Section 101.4 in the Fuel Gas It states the purpose of the code.
Code?
What types of installations are specifically excluded from LP-gas installations at utility gas plants and temporary LP-gas piping for buildings
the Fuel Gas Code regarding LP-gas? under construction.
What is the coverage of gaseous hydrogen systems Gaseous hydrogen systems shall be regulated by Chapter 7.
according to Section 101.2.1?
What is the requirement for piping systems for mixtures of They must have an operating pressure greater than 10 psig (69 kPa gauge) to be
gas and air? outside the scope.
What types of equipment are excluded from the Fuel Gas Equipment such as gas-generating sets, compressors, and calorimeters.
Code in terms of proprietary items?
, What is the coverage of the Fuel Gas Code regarding LNG installations are specifically excluded from the code.
liquefied natural gas (LNG) installations?
What does Section 101.2.4 state about building design It is outside the scope of the Fuel Gas Code, except as specified.
and construction?
What is the significance of Section 401.1.1 in relation to It specifies exceptions for gas piping, meters, and other appurtenances used by the
gas piping? serving gas supplier.
What types of portable appliances are excluded from the Portable fuel cell appliances that are neither connected to a fixed piping system nor
Fuel Gas Code? interconnected to a power grid.
What is the maximum height for accessory structures to Accessory structures must not be more than three stories above grade plane.
comply with the Fuel Gas Code?
What is the primary focus of the Fuel Gas Code? To regulate the installation of fuel-gas piping systems and related appliances.
What does the term 'appurtenances' refer to in the context Items such as gas piping, meters, and gas pressure regulators used in gas
of the Fuel Gas Code? distribution.
What is the exception for raw material applications in the They are excluded except for piping to special atmosphere generators.
Fuel Gas Code?
What is the purpose of the code regarding fuel gas To establish minimum requirements for safety, health, property protection, and
equipment or systems? general welfare by regulating design, construction, installation, quality of materials,
location, operation, and maintenance.
What does Section 101.5 state about severability? If any part of the code is held unconstitutional, it does not affect the validity of the
remaining portions.
What governs in case of a conflict between general and The specific requirement shall govern.
specific requirements in the code?
What is stated in Section 102.2 regarding existing The code does not require the removal, alteration, or abandonment of existing
installations? installations lawfully in existence at the time of adoption.
What governs additions, alterations, renovations, or repairs They shall be regulated by the International Existing Building Code.
related to structural issues?
What is required for the maintenance of installations Installations must be maintained in proper operating condition in accordance with
according to Section 102.3? the original design and in a safe condition.
Who is responsible for the maintenance of installations? The owner or the owner's authorized agent.
