D.C. Mun. Regs. tit. 3, § 720
720.1 Any qualified federal elector, as defined in § 501, may make a written request to vote an absentee Federal Ballot, as defined in § 700.5. Such request may be made electronically, by mail, or in person at the Board's office, and shall include the following:
(a) The voter's name;
(b) A statement that the applicant requests a ballot for federal offices;
(c) Address from which the voter was previously registered to vote in the District;
(d) Address to which the absentee ballot shall be delivered, if applicable;
(e) The voter's driver's license number or the last four digits of the voter's social security number;
(f) The voter's date of birth; and
(g) The voter's original signature.
720.2 An absentee Federal Ballot request sent electronically will be considered to contain an original signature.
720.3 A mailed or electronically received request for an absentee Federal Ballot shall be received from the registered voter by no later than the seventh (7th) day preceding the date of the election.
720.4 A qualified federal elector may request an absentee Federal Ballot in person not earlier than fifteen (15) days preceding the election, and not later than 4:45 p.m., on the day preceding the election.
720.5 An absentee Federal Ballot may be returned to the Board by any of the following ways:
(a) Mail;
(b) Brought to any polling place for deposit in the special ballot box on election day; or
(c) Delivered to the Board's office at any time before the close of the polls on election day.
720.6 All postmarked absentee Federal Ballots shall be postmarked not later than the day of the election, and all mailed (postmarked and non-postmarked) absentee Federal Ballots shall be received not later than ten (10) days after the election.
720.7 The Board will take steps to reasonably investigate the timely completion of non-postmarked absentee Federal Ballots by checking tracking numbers or any other information available.
SOURCE: Final Rulemaking published at 39 D.C. Reg. 2467, 2495 (April 10, 1992); as amended by Final Rulemaking published at 51 D.C. Reg. 7418 (July 30, 2004); as amended by Final Rulemaking published at 56 D.C. Reg. 5753, 5757 (July 17, 2009); and as amended by Final Rulemaking published at 57 D.C. Reg. 4245, 4272 (May 14, 2010).