The Uniformed and Overseas Citizens Absentee Voting Act (UOCAVA) protects the rights of military personnel, their dependents, and overseas citizens to vote by absentee ballot. The Department of Defense (DOD) and others have reported that absentee voting, which relies primarily on mail, can be slow and may, in certain circumstances, serve to disenfranchise these voters. In 2004, Congress required DOD to develop an Internet-based absentee voting demonstration project and required the Election Assistance Commission-which reviews election procedures-to develop guidelines for DOD's project. In 2006, Congress required DOD to report, by May 15, 2007, on plans for expanding its use of electronic voting technologies and required GAO to assess efforts by (1) DOD to facilitate electronic absentee voting and (2) the Commission to develop Internet voting guidelines and DOD to develop an Internet-based demonstration project. GAO also assessed DOD's efforts to develop plans to expand its use of electronic voting technologies. GAO interviewed officials and reviewed and analyzed documents related to these efforts.