12 U.S. Code § 635a–6 - Periodic audits of bank transactions
(a) In general
Within 2 years after May 30, 2012, and periodically (but not less frequently than every 4 years) thereafter, the Comptroller General of the United States shall conduct an audit of the loan and guarantee transactions of the Export-Import Bank of the United States to determine the compliance of the Bank with the underwriting guidelines, lending policies, due diligence procedures, and content guidelines of the Bank.
(b) Review of fraud controls
The Comptroller General of the United States shall review the adequacy of the design and effectiveness of the controls used by the Export-Import Bank of the United States to prevent, detect, and investigate fraudulent applications for loans and guarantees, including by auditing a sample of Bank transactions, and submit to the Congress a written report which contains such recommendations with respect to the controls as the Comptroller General deems appropriate.