Natural gas runs deep through educational settlements; fuel for district energy systems, hospital backup power systems, boilers for hot water to residence hall bathing and kitchens. The AGA catalog is fairly stable; reflected in the relative reliability of the US natural gas distribution network. The current edition of the parent AGA standard is dated 2024 and harmonizes with NFPA 54 which will receive comments on the Second Draft of the 2027 Edition until March 31st.