This edition of NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-Based FireProtection Systems, was prepared by the Technical Committee on Inspection, Testing, and Maintenanceof Water-Based Systems and acted on by NFPA at its Association Technical Meeting held June 17-20,2019, in San Antonio, TX. It was issued by the Standards Council on August 5, 2019, with an effectivedate of August 25, 2019, and supersedes all previous editions.This edition of NFPA 25 was approved as an American National Standard on August 25, 2019.