Compulsory voting
Countries that have compulsory voting by law but do not enforce it:Although voting in a country may be compulsory, penalties for failing to vote are not always strictly enforced. In Australia and Brazil, providing a legitimate reason for not voting (such as illness) is accepted. In Argentina, those who were ill on voting day are excused by requesting a doctor to prove their condition; those over away from their voting place are also excused by asking for a certificate at a police station near where they are. Belgian voters can vote in an embassy if they are abroad or can empower another voter to cast the vote in their name; the voter must give a "permission to vote" and carry a copy of the eID card and their own on the actual elections.
Uniformed and Overseas Citizens Absentee Voting Act
The Uniformed and Overseas Citizens Absentee Voting Act (UOCAVA), P.L. 99-410, , , , is a United States federal law dealing with elections and voting rights for United States citizens residing overseas. The act requires that all U.S. states, the District of Columbia, Puerto Rico, Guam, American Samoa, and the U.S. Virgin Islands allow certain U.S. citizens to register to vote and to vote by absentee ballot in federal elections. The act is Public Law 99-410 and was signed into law by President Ronald Reagan on August 28, 1986.