This standard describes shop-applied, cement-mortar linings specified in the ANSI/AWWA C100/A21 series of standards for ductile-iron pipe and ductile-iron and gray-iron fittings for water, wastewater, and reclaimed water systems, and is intended to be used as a supplement to those standards. Major revisions made to the standard in this edition include the following: scope, purpose, and application of standard were expanded to include wastewater and reclaimed water applications; addition of definitions for wastewater and reclaimed water; addition of material requirements in Sec. 4.1; addition of Sec. 4.12.3.2 to allow the water contact surface to be qualified for the limit of toxic substances in accordance with the requirements of NSF/ANSI 61; and, addition of delivery requirements for Notice of Nonconformance (Sec. 6.1) and Affidavit of Compliance (Sec. 6.2).