In the U.S., states can choose to have either universal mail-in voting, in which ballots are mailed to all voters, or absentee voting, which requires a voter to request an absentee ballot to be mailed.
In the U.S., states can choose to have either universal mail-in voting, in which ballots are mailed to all voters, or absentee voting, which requires a voter to request an absentee ballot to be mailed.