D.C. Mun. Regs. tit. 3, § 1300
1300.1 For the purposes of this chapter, a vacancy is deemed to exist in the office of a member of an Advisory Neighborhood Commissioner when any of the following occurs and upon the publication of the notice of vacancy in the D.C. Register:
1300.2 Except when a vacancy occurs in the office of a member of an Advisory Neighborhood Commission pursuant to § 1300.1(h), the Executive Director or his or her designee shall be authorized to certify the seat vacant.
1300.3 Within ninety (90) days of the date that the Board declares a vacancy, the members of the Advisory Neighborhood Commission area where the vacancy exists shall fill the vacancy pursuant to D.C. Official Code § 1-309.06(d)(6) (2006 Repl. & 2012 Supp.).
1300.4 Within five (5) days (excluding Saturdays, Sundays, and legal holidays)
after the date that the Board declares a vacancy, the Board shall make petitions available for obtaining signatures of registered electors within the affected Single-Member District.
1300.5 In the event petitions are not obtained by any registered qualified elector within the affected Single-Member District within fourteen (14) working days after petitions have been made available, the Board shall republish the notice pursuant to § 1300.1 of this chapter in the D.C. Register.
SOURCE: Final Rulemaking published at 43 DCR 1078, 1094-95 (March 1, 1996); as amended by Final Rulemaking published at 60 DCR 5582 (April 12, 2013).