NFPA 54: National Fuel Gas Code, 2015 Edition

In response to a devastating gas piping purging accident, NFPA 54 received an emergency Tentative Interim Amendment to the purging requirements in the 2009 edition. With minor editorial changes, the 2012 NFPA 54 presents new rules specifying the mandatory use of combustible gas indicators and detectors so employers can identify the presence of fuel gas. Significant changes improve safety and facilitate code application, such as a new bonding clamp location for corrugated stainless steel tubing (CSST) gas piping that clarifies bonding requirements added in the 2009 edition.

The code covers:

• Piping system design, materials, and components
• Pipe sizing and installing pipes underground, aboveground, and inside concealed spaces
• Piping inspection, testing, system leak check, and purging
• Requirements for process air and installation of appliances
• Minimum safe performance criteria, general requirements, and specifications for venting combustion products.

NFPA 54 applies to natural gas, manufactured gas, liquefied petroleum gas (LP-Gas), and gas-air mixtures. However, it does not cover systems operating at pressures over 125 psi for natural gas or 50 psi for propane. The latest edition, NFPA 54-2024, was approved by ANSI on November 1, 2023, and became available for purchase on January 26, 2024.

About NFPA

NFPA is known as the trusted source of safety knowledge, the National Fire Protection Association (NFPA) has been helping to solve some of the planet’s toughest safety problems for more than 125 years. To remain relevant for over a century as a knowledge and information organization, we’ve continually evolved our scope of expertise—from fire prevention, wildfire preparedness, and electrical safety to hazardous materials, community risk reduction, and public safety.

Other Works:

• NFPA 54: National Fuel Gas Code, 2021 
• NFPA 54: National Fuel Gas Code, 2018
• NFPA 54: National Fuel Gas Code, 2012