Title 31 › SUBTITLE III — FINANCIAL MANAGEMENT › CHAPTER 35 — ACCOUNTING AND COLLECTION › SUBCHAPTER III — AUDITING AND SETTLING ACCOUNTS › § 3521
Agencies must check and audit their accounts before sending them to the Comptroller General. The agency head sets the audit rules and the place for the audit. A disbursing official cannot audit vouchers they are responsible for. With the Comptroller General’s OK, the agency head can skip parts of an audit. An agency can use statistical sampling to audit vouchers to save money. The Comptroller General can limit how big a voucher can be for sampling and will review whether the sampling works. Officials who act in good faith under sampling are not personally liable for payments not individually checked, as long as they and the agency head follow collection steps the Comptroller General requires. Sampling rules do not change who is responsible for wrong payments or reduce the duty to try to collect improper payments. Financial statements made under section 3515 must be audited using government auditing standards. If an agency has an Inspector General under chapter 4 of title 5, that Inspector General decides whether the audit is done by the Inspector General or by an outside auditor. If not, the agency head picks an outside auditor. The auditor must send a report to the agency head and the Controller of the Office of Federal Financial Management. The Comptroller General may review those audits, report results to Congress, the Director of OMB, and the agency, and may do the audit itself (after talking with the agency’s Inspector General). Every executive agency financial statement for a fiscal year after fiscal year 1991 must follow these rules. If the Comptroller General (GAO) audits a statement for a fiscal year starting on or after October 1, 2009, the agency must pay GAO for that audit if GAO audited that agency for fiscal year 2007. An agency can also ask GAO to audit and reimburse GAO with the Inspector General’s agreement. GAO must consult with the agency and its Inspector General about scope, terms, and cost before starting. Payments to GAO go into a special Treasury account and are used as annual appropriations allow.
Full Legal Text
Money and Finance, Source: USLM XML via OLRC
Legislative History
Reference
Citation
31 U.S.C. § 3521
Title 31, Money and Finance
Last Updated
Sep 22, 2026
Release point: 119-110