If you have missed the voter registration deadline, you can still register to vote and a cast a ballot at the same time during early voting or on Election Day. Simply go to your regular polling place or early voting site to register and vote. Contact your Local Election Official if you have any questions.
To register in the District of Columbia you must:
be a citizen of the United States
be a District of Columbia resident at least 30 days preceding the next election
be at least 18 years old on or preceding the next election not be in jail for a felony conviction
not have been judged “mentally incompetent” by a court of law