The International Fuel Gas Code (IFGC) provides comprehensive requirements for the safe design, installation, and maintenance of fuel gas systems and gas-fired appliances through both prescriptive and performance-based provisions. The latest edition incorporates important updates that reflect evolving technologies, materials, and industry practices.

Key updates include:

• New provisions recognizing arc-resistant Corrugated Stainless Steel Tubing (CSST) products.
• Schedule 10 steel pipe is now permitted for fuel gas piping systems, expanding material options beyond the previously required Schedule 40 steel pipe.
• Schedule 10 steel pipe joints may be welded, brazed, flanged, or assembled using approved press-connect fittings; threaded connections are not permitted.
• Clarification that shutoff valves located behind movable appliances, such as ranges and clothes dryers, satisfy accessibility requirements.
• Plastic vent piping must be labeled in accordance with the applicable material standards specified by the appliance manufacturer, or alternatively be listed to UL 1738.
• Revised clearance requirements for direct-vent appliance terminations and building openings help reduce the potential for combustion products to re-enter the structure.

These revisions enhance safety, improve installation flexibility, and ensure the code remains aligned with current fuel gas technologies and construction practices.