Cover title. "This edition of NFPA 13, Standard for the installation of sprinkler systems, was prepared by the Technical Committee on Hanging and Bracing of Water-Based Fire Protection Systems, Private Water Supply Piping Systems, Sprinkler System Discharge Criteria, and Sprinkler System Installation Criteria, released by the Correlating Committee on Automatic Sprinkler Systems, and acted on by the NFPA membership during the 2021 NFPA Technical Meeting held June 14-July 2. It was issued by the Standards Council on August 26, 2021, with an effective date of September 15, 2021, and supersedes all previous editions"--Page 1. "This edition of NFPA 13 was approved as an American National Standard on September 15, 2021."--Page 1. Includes bibliographical references and index.