The American Gas Association serves as the secretariat to three ANSI Accredited Standards Committees (ASC); ASC  Z223 National Fuel Gas Code, ASC Z380 – GPTC, Gas Piping Technology Committee, and ASC B109.  These three ASCs are responsible for the following standards published by AGA:

National Fuel Gas Code

ASC Z223 maintains ANSI Z223.1, National Fuel Gas Code. The Code is jointly developed with the National Fire Protection Association (NFPA) 54 Committee and is also known as NFPA 54. 

Gas Piping Technology Comittee 

ASC Z380 maintains the GPTC Guide for Gas Transmission, Distribution, and Gathering Piping System.  

B109 Family of Standards

ASC B109 maintains a family of gas displacement meters and service regulators standards that are designated as B109.1, B109.2, B109.3, and B109.4.