The United States Government Accountability Office (GAO) is an independent, nonpartisan agency that works to support the Congress of the United States by providing objective, reliable information and analysis to help Congress make informed decisions. The GAO was established in 1921 and is headquartered in Washington, D.C.
The GAO conducts audits, evaluations, and investigations of federal programs and activities to assess their efficiency, effectiveness, and compliance with laws and regulations. It also provides recommendations to improve the performance of these programs and activities. The GAO's work helps Congress and other decision makers to identify and address problems, and to ensure that federal resources are used effectively and efficiently.
The GAO has a broad mandate to review all aspects of the federal government, including defense, foreign affairs, health care, education, and the environment. It has expertise in a wide range of subject areas and uses a variety of research methods, including data analysis and interviews, to gather and analyze information. The GAO also works with other agencies and organizations to promote transparency and accountability in government operations.