gao.gov

Key factors

• + Institutional Authority & Independence — GAO is an independent agency of Congress with statutory authority to audit federal programs and operations. It reports to Congress, not the executive branch, ensuring institutional independence.
• + Rigorous Methodology — GAO audits and reports follow strict professional standards (GAGAS - Government Auditing Standards) and employ rigorous verification and evidence-based analysis.
• + Longevity & Track Record — Established in 1921 (over 100 years), the GAO has a consistent track record of credible, fact-based reporting without major scandals or retraction controversies.
• + Nonpartisan Mandate — The GAO is explicitly designed to be nonpartisan and serves all members of Congress. Its reports are intended to inform policy across party lines.
• + Transparency & Accountability — GAO reports are public by default, methods are documented, and the agency maintains clear standards for evidence and analysis.
• + No Commercial Bias — As a government agency, GAO has no advertising, subscription, or commercial revenue model that could introduce financial bias.
• • Public Trust in Government Sources — While GAO itself is highly credible, general public trust in U.S. government institutions varies. However, GAO's independence and track record are rarely questioned even by critics of government.

Editorial standards

GAO follows Government Auditing Standards (GAGAS), also known as 'Yellow Book' standards, which require independence, due professional care, quality control, and evidence-based conclusions. All reports must be reviewed for accuracy and supported by documentary evidence and audit work. The agency publishes both formal audit reports and more accessible high-level fact sheets. A formal comment and response process allows audited entities to contest findings before final publication. All sources are documented, methodologies are transparent, and reports explain limitations and scope clearly.

Fact-checking

The GAO maintains an excellent track record for accuracy. Reports are subject to internal review and often reviewed by audited entities before publication (with opportunity for response). Retraction of major findings is extremely rare. The agency's audit work is often independently verified by the Office of Inspector General and congressional committees. Third-party fact-checkers, when they reference GAO data, consistently find it reliable.