U.S. Government Accountability Office GAO U.S. Government Accountability Office U.S. Government Accountability Office Oficina de Responsabilidad del Gobierno de los Estados Unidos Oficina de Responsabilidad del Gobierno de EE. UU. Bureau de responsabilité du gouvernement des États-Unis המשרד לאחריות ממשלתי של ארצות הברית यूएस सरकारी जवाबदेही कार्यालय 米国政府説明責任局 Escritório de Responsabilidade do Governo dos EUA 美国政府问责办公室 GAO Government Accountability Office The Government Accountability Office (GAO) is a legislative branch government agency that provides auditing, evaluation, and investigative services for the United States Congress. It is the supreme audit institution of the federal government of the United States.