D.C. Mun. Regs. tit. 3, § 513
513.1 A qualified elector may register during the in-person absentee voting period specified in § 717 of this title, at an early voting center designated by the Board, or on Election Day by appearing in person at the polling place for the precinct in which the individual maintains residence, by completing the Board’s official Voter Registration Application.
513.2 Valid proof of residence is any official document showing the voter’s name and a District of Columbia home address. Acceptable forms of proof of residence include:
513.3 Voters who fail to provide valid proof of residence during the in-person absentee voting period, at an early voting center, or on Election Day must provide such proof in order to complete registration.
513.4 Registered voters shall be permitted to submit notices of change of address or change of name during the in-person absentee voting period, at an early voting center, or at a polling place on Election Day.
513.5 A registered voter shall not change his or her party affiliation status during the in-person absentee voting period, at an early voting center, or at a polling place on Election Day during a primary election. Requests for change of party affiliation status received during the in-person absentee voting period, at an early voting center, or at a polling place on Election Day during a primary election shall be held and processed after the election. A change in party affiliation status occurs when a voter:
(a) Changes his or her party registration from one political party to another;
(b) Changes his or her party registration from “no party (independent)” to a political party; or
(c) Changes his or her party registration from a political party to “no party (independent).”
513.6 A voter registration application, or a notice of change of name, address, or party affiliation status, received pursuant to this section is considered to be received by the Board upon acknowledgement of receipt by the Board’s date-stamp.
SOURCE: Final Rulemaking published at 43 DCR 1078, 1088 (March 1, 1996); as amended by Final Rulemaking published at 56 DCR 4738, 4740-41 (June 19, 2009); as amended by Final Rulemaking published at 57 DCR 3267, 3282 (April 16, 2010); as amended by Emergency and Proposed Rulemaking published at 58 DCR 10752 (December 16, 2012)[EXPIRED];as amended by Final Rulemaking published at 58 DCR 941, 951 (February 10, 2012); as amended by Final Rulemaking published at 61 DCR 625 (January 24, 2014).