D.C. Mun. Regs. tit. 3, § 514
514.1 Within nineteen (19) calendar days after the receipt of a voter registration application, except voter registration applications received at early voting centers or the polls, the Registrar shall mail a non-forwardable voter registration notification to the applicant advising him or her of the acceptance or rejection of the registration application. Applicants who submitted a voter registration application at an early voting center or the polls shall be notified of their registration acceptance or rejection by a toll-free phone number provided by the Board or through information available on the Board's website.
514.2 If the application is rejected, the notification shall include the reason or reasons for the rejection and shall inform the voter of his or her right to appeal the rejection pursuant to D.C. Official Code § 1-1001.07 (f) (2006 Repl.).
514.3 In the event that the notification advising the applicant of acceptance of his or her voter registration is returned to the Board as undeliverable, the Registrar shall mail the notice provided in D.C. Official Code § 1-1001.07 (j)(1)(B) (2006 Repl.).
514.4 An applicant shall not be registered until the date the Board determines that the applicant is a qualified elector and eligible to register to vote in the District of Columbia. Once the Board determines a registrant's eligibility, the effective date of the registration shall be the date of receipt of the voter registration application or registration update, or as otherwise provided in this chapter.
SOURCE: Final Rulemaking published at 43 D.C. Reg. 1078, 1088-89 (March 1, 1996); as amended by Final Rulemaking published at 56 D.C. Reg. 4738, 4741 (June 19, 2009); and as amended by Final Rulemaking published at 57 D.C. Reg. 3267, 3283 (April 16, 2010); as amended by Notice of Emergency and Proposed Rulemaking published at 7 DCR 7690 (August 20, 2010)[EXPIRED]; as amended by Notice of Final Rulemaking published at 57 DCR 11111, 11119(November 26, 2010).