This utility operations manual provides drawings and approved procedures for fire hydrant design, installation, and operation and maintenance practices. It traces the development of the different styles and contains detailed instructions for testing. Definitions, diagrams, and record-keeping tips are included as well as easy-to-follow flow-testing procedures to quickly obtain valuable distribution system information. The bulk of the material in this manual refers to dry-barrel and wet-barrel fire hydrants; however, information is also included on high-pressure and flush-type hydrants. Installation practices described are consistent with AWWA C600-10 Installation of Ductile Iron Water Mains and Their Appurtenances. Includes an illustrated guide to fire hydrants, organized by manufacturer name.