Using specific case studies to illustrate concepts, UV Disinfection for Wastewater fills a gap in the design guidance that is available for UV disinfection for low-dose applications, including disinfection of secondary and tertiary wastewater effluent discharges to meet NPDES compliance. Developed in conjunction with the International Ultraviolet Association, this essential guide for consultants, wastewater utilities, and operators provides introductory information on the advantages—and disadvantages—of UV disinfection compared to other commonly used technologies. Regulatory agencies will find valuable information to assist in their review of applications for the use of UV disinfection systems in water resource recovery facilities that are subject to discharge limits for bacteria under National Pollutant Discharge Elimination System permitting.