The document provides an overview of public-private partnerships (PPPs) in the United States. It discusses the background and history of PPPs in the US, dating back to the 19th century. It then outlines key US PPP policies from 1991 onward that have encouraged private sector financing of infrastructure projects. The document also examines the types of PPP models that exist in the US and reviews sectors where PPPs have been implemented, such as transportation, utilities, and social infrastructure. It concludes by recommending ways to further develop the PPP market in the US, such as by establishing dedicated PPP units and changing procurement processes.