his manual is a practical guide to integrated planning, a holistic approach that recognizes the interconnectedness of various systems and the importance of considering social, environmental, and economic tradeoffs. The industry leaders who developed this manual aimed to create a roadmap that is both innovative and practical, addressing the unique challenges and opportunities that lie ahead. Integrated planning is a regulatory framework under the Clean Water Act that aims to create more economical and sustainable outcomes, resulting in better overall water quality. By voluntarily adopting integrated planning, municipal and utility planners can identify and implement wastewater, stormwater, and drinking water infrastructure projects that provide optimal solutions for their communities. This approach helps balance resiliency and sustainability with regulatory obligations, ensuring that municipalities and utilities meet their National Pollutant Discharge Elimination System permit requirements more efficiently.