NFPA'swebsite now features the most trusted fuel gas and liquefied petroleum gas codes in the world for free review. The 2002 edition of NFPA 54, National Fuel Gas Code, and the 2004 edition of NFPA 58, Liquefied Petroleum Gas Code, are the most recent of NFPA's National Fire Codes® to be added to the organization's online collection of codes, standards and reference materials posted as a public service. Visit NFPA's website