KPMG LLP, under contract with the DHS Office of Inspector General, audited the Domestic Nuclear Detection Office’s (DNDO) financial statements and internal control over financial reporting for fiscal year (FY) 2015. The management letter contains one observation related to internal controls and other operational matters for management’s consideration. KPMG LLP noted an internal control deficiency and the need for improvement in the undelivered order process. The deficiency is not considered significant and was not required to be reported in the Independent Auditors’ Report on DHS’ FY 2015 Financial Statements and Internal Control over Financial Reporting, dated November 13, 2015, included in the DHS FY 2015 Agency Financial Report.