The federal government plans to spend at least $82 billion on IT products and services in fiscal year 2014, such as software licenses. Federal agencies engage in thousands of licensing agreements annually. Effective management of software licenses can help avoid purchasing too many licenses that result in unused software. GAO was asked to review federal agencies' management of software licenses. GAO (1) assessed the extent to which OMB and federal agencies have appropriate policies on software license management, (2) determined the extent to which agencies adequately manage licenses, and (3) described agencies' most widely used software and extent to which they were over or under purchased. GAO assessed policies from 24 agencies and OMB against sound licensing policy measures. GAO also analyzed and compared agencies' software inventories and management controls to leading practices, and interviewed responsible officials. To identify sound licensing policy measures and leading practices, GAO interviewed recognized private sector and government software license management experts.