D.C. Mun. Regs. tit. 3, § 1102
1102.1 A petition to recall an at-large elected official shall contain the valid signatures of ten percent (10%) of the registered qualified electors of the District of Columbia; Provided, that the total number of signatures submitted shall include ten percent (10%) of the registered electors in each of five (5) or more of the eight (8) election wards.
1102.2 A petition to recall an elected officer from a ward or school district shall contain the valid signatures of ten percent (10%) of the registered qualified electors of the ward or school district from which the officer was elected.
1102.3 A petition to recall an elected officer from a Single-Member District shall contain the valid signatures of ten percent (10%) of the registered qualified electors of the Single-Member District from which the officer was elected.
1102.4 The number of registered qualified electors used for computing these signature requirements shall be based upon the latest official count of registered qualified electors made by the Board at least thirty (30) days prior to the submission of signatures for the particular recall election, in accordance with D.C. Code § 1-204.112 (2006 Repl.).
SOURCE: Final Rulemaking published at 42 D.C. Reg. 4419, 4423-24 (August 18, 1995); as amended by Final Rulemaking published at 48 D.C. Reg. 11722 (December 28, 2001); and further amended by Final Rulemaking published at 49 D.C. Reg. 2737 (March 22, 2002).