Defense Primer: FY2018 Department of Defense Audit Results [Updated January 9, 2019] [open pdf - 352KB]
From the Document: "The Chief Financial Officers Act of 1990 (CFO Act, P.L. 101-576) requires annual audits of financial statements for federal agencies. Under the CFO Act, audits of federal agencies are the responsibility of the agency's inspector general (IG), but the IG may contract with one or more external auditors to perform the audit. The Department of Defense's (DOD) IG conducted the first-ever agency-wide financial audit of DOD in FY2018. A number of DOD components have previously undergone annual audits (e.g., the U.S. Army Corps of Engineers, Defense Contract Audit Agency, and National Reconnaissance Office). The agency-wide audit was conducted by nine Independent Public Accounting (IPA) firms contracted by DOD IG. The IPAs conducted 24 separate audits within DOD."
CRS In Focus, IF10913
Congressional Research Service: https://crsreports.congress.gov/