In Maryland, which codes are typically applied for gas piping leak-tightness testing?

• A. IFGC and IMC
• B. NFPA 54
• C. International Plumbing Code
• D. UPC

Answer: (A)

The requirement centers on the codes that govern how fuel gas piping is installed and tested for leaks. In Maryland, the typical framework used for gas piping leak-tightness testing comes from the International Fuel Gas Code (IFGC) and the International Mechanical Code (IMC). The IFGC lays out the design, installation, and testing procedures for fuel gas piping, including the methods and pressures used to verify that the system is leak-tight. The IMC covers related mechanical aspects of systems that include gas piping and references testing requirements as part of ensuring safe operation. While NFPA 54 is a widely used standard for fuel gas in many areas, Maryland commonly relies on the IFGC/IMC combination, and the International Plumbing Code or Uniform Plumbing Code focus more on plumbing rather than fuel gas piping testing.