1.1.5 Referenced Codes — 2025 California Plumbing Code

The codes, standards and publica- tions adopted and set forth in this code, including other codes, standards and publications referred to therein are, by title and date of publication, hereby adopted as standard reference documents of this code. When this code does not specifically cover any subject related to building design and construction, recognized architectural or engineering practices shall be employed. The National Fire Codes, standards, and the Fire Protection Handbook of the National Fire Protection Asso- ciation are permitted to be used as authoritative guides in determining recognized fire prevention engineering practices.