United States Environmental Protection Agengy (EPA) has issued its Clean Water and Drinking Water Infrastructure Sustainability Policy as part of its efforts to promote sustainable infrastructure within the water sector.
Source: UNCSD Secretariat (2010) Questionnaire for the Member States on Experiences, Success Factors, Risks and Challenges with Regard to Objective and Themes of UN Conference on Sustainable Development (UNCSD)

EPA's Office of Water is working domestically to enhance the sustainability of U.S. communities, U.S. drinking water, wastewater and stormwater systems, and the infrastructure that make up those systems. EPA will build on its efforts in these areas and will continue to work with stakeholders to bring about changes that will put us on increasingly sustainable paths. Water sector services include drinking water, wastewater and stormwater utilities. The concept of a sustainable water sector goes beyond that of just water infrastructure sustainability. It includes effectively managing all aspects of the systems' operations and infrastructure. EPA's efforts to promote sustainable systems are anchored in two areas the Effective Utility Management (EUM) Initiative and the Safe Drinking Water Act's (SDWA) Capacity Development Program.