This report highlights strategies for how the government can partner with impact investors to unleash new capital, talent, and energy for social, economic, and environmental good. Members of the National Advisory Board, who produced this report along with input from many others, are part of a growing group of skilled investors, entrepreneurs, and intermediaries who believe that capital can be used more reliably and effectively as a tool for long-term progress. Together, they explored a range of government policies to advance impact investing. The policies they recommend build on the historical successes of the field. Many policies do not require any additional government spending; those that do often repay their costs over time. This report is the product of months of discussion, extensive consultation, and deliberation. While each of the members of the NAB brings different priorities and perspectives to this effort, all agree that we are at an inflection point where smart policy can scale smart capital for social benefit.