The United States' foreign assistance programs work with the public and private sectors, non-governmental organizations, and civil society to foster urban productivity. This means building the capacity of poorly managed cities so that they are better equipped to handle the impacts of urban growth. A large part of this is, of course, expanding and improving the delivery of urban services such as water and sanitation. For those cities that may be more advanced, the focus is on harnessing the growth potential of urban markets. To assist USAID Missions and partners to realize the benefits of urban growth, the Urban Programs Team offers practical and tailored assistance through: (1) Urban Programs' technical staff (2) Implementing mechanisms (3) Technical toolkits and materials (4) Demand-driven training and research.