This guidebook has been written to assist urban water agencies with understanding and successfully administering residential conservation programs in accordance with the Residential BMP. The intended audience is a Water Conservation Coordinator responsible for implementing the BMPs. Program examples and references are included to assist coordinators in developing and implementing successful programs within their service areas. Residential water users throughout California depend on a reliable and safe supply of water for their homes. The activities described below, all part of the California Urban Water Conservation Council’s Residential Best Management Practices (BMP) requirements, define the most effective, well proven water conservation methods and measures that residents, working in conjunction with water agencies, can implement. By implementing these methods and measures, homeowners, multi-family property owners, and tenants will increase water use efficiency. This program is important because it targets most water agencies’ largest customer class: residential customers.