The U.S. Postal Service invests hundreds of millions of dollars in information technology (IT) each year to support its mission of providing prompt, reliable, and efficient mail service to all areas of the country. It must support these operations through the revenues it earns for its services. Growing operating expenses and capital needs in the face of reduced revenues highlight the need for the Postal Service to invest its IT dollars wisely. Accordingly, the Senate Committee on Governmental Affairs and its Subcommittee on International Security, Proliferation, and Federal Services asked GAO to evaluate how well the Postal Service manages its IT investments.