There is a newer edition of this document available. This Code has rules for piping in industrial, institutional, commercial and public buildings, and multi-unit residences, which does not require the range of sizes, pressures, and temperatures covered in the B31.1 Code for Power Piping. It contains requirements for the design, materials, fabrication, installation, inspection, examination and testing of piping systems for building services. It includes piping systems either in the building or within the property limits.