International Code CouncilIFGCInternational Fuel Gas Code.Referenced across 7 Anvilfield field guides. Field guides that apply IFGCPlumbingPlumbingGas piping sizing and install guidePlumbingPlumbing permit and inspection guidePlumbingPropane LP-gas system install guidePlumbingWater heater venting and combustion airHVACHVACBuilding pressurization field guideHVACCombustion analysis field guideLandscapingLandscapingOutdoor kitchen construction guide Often cited alongsideNFPA 54ANSI Z223.1IPCNFPA 58UPCASHRAE 62.1ASHRAE 90.1ASHRAE TC 9.9 Compare your optionsGas tankless vs Electric tankless Browse all codes and standards