This edition of NFPA 20, Standard for the Installation of Stationary Pumps for Fire Protection, was prepared by the Technical Committee on Fire Pumps and acted on by the National Fire Protection Association. Inc., at its May Meeting held May 17-20, 1999, in Baltimore, MD. It was issued by the Standards Council on July 22, 1999, with an effective date of August 13. 1999. and supersedes all previous editions.