We audited HUD’s compliance with the fiscal year 2015 travel and purchase card programs based on our required fiscal year 2014 risk assessment, which determined the U.S. Department of Housing and Urban Development’s (HUD) agencywide charge card program to be at medium risk for fraud. Offices of inspector general are required to (1) conduct periodic assessments of the agency charge card programs, (2) perform analyses or audits as necessary, and (3) report to the head of the executive agency the results of such analyses or audits. Our audit objective was to determine whether HUD had sufficient and effective controls to (1) prevent and identify improper and potentially unallowable uses of cards and (2) recognize patterns of violation.  While HUD stated that it had implemented controls to identify cardholder travel card program violations, it did not successfully identify patterns of abuse. Additionally, although HUD monitors purchase card use through periodic reviews, the purchase card program’s internal controls needed improvement. We recommend that HUD review the identified 3,671 transactions totaling $528,147 to determine whether these transactions were for official Government travel, identify additional transactions made outside official travel, and ensure that appropriate action is taken.  Additionally, we recommend that HUD (1) clarify roles and responsibilities regarding the duties that must be separated and the overlap that might be allowable in smaller field offices, (2) establish a periodic review of the official cardholders, (3) enforce retention of supporting documentation and make it available to auditors, and (4) review supporting documents to identify overlapping functions and responsibilities