Title 31 › Subtitle SUBTITLE III— - FINANCIAL MANAGEMENT › Chapter CHAPTER 35— - ACCOUNTING AND COLLECTION › Subchapter SUBCHAPTER III— - AUDITING AND SETTLING ACCOUNTS › § 3521
Agencies must audit their accounts before sending them to the Comptroller General. The agency head must set rules for how and where those audits happen. A disbursing official cannot audit vouchers they are responsible for. The Comptroller General can agree to skip parts of an audit. An agency head may use statistical sampling to check vouchers if it will save money. The Comptroller General can limit the dollar amount that may be covered by sampling and will review whether the sampling method works. Officials who act in good faith under an approved sampling method are not personally liable for payments not individually checked, as long as they and the agency head follow the collection steps the Comptroller General requires. Sampling does not remove anyone’s legal liability or stop collection efforts. Each agency financial statement must be audited under government auditing standards. If an agency has an Inspector General, that Inspector General or an outside auditor will do the audit as the Inspector General decides. If not, the agency head must pick 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 or audit these audits and will report results to Congress, the OMB Director, and the agency head. For fiscal years after fiscal year 1991, audits must follow this section and the required plan. If the GAO audits a statement for a year starting on or after October 1, 2009, and GAO audited that agency in fiscal year 2007, the agency must repay GAO for the audit cost. Agencies may also ask GAO to audit and repay the cost with the Inspector General’s agreement. Any repayments go into a special Treasury account and are used as Congress allows.
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
Apr 6, 2026
Release point: 119-73