D.C. Mun. Regs. tit. 3, r. 3-1103
A petition to recall an elected official in a city-wide office shall contain the valid signatures of at least 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 at least five (5) of the eight (8) election wards.
A petition to recall an elected official from a ward shall contain the valid signatures of at least ten percent (10%) of the registered qualified electors of the ward from which the official was elected.
A petition to recall an elected official from a Single-Member District shall contain the valid signatures of at least ten percent (10%) of the registered qualified electors of the Single-Member District from which the official was elected.
The maximum number of signatures that the Board will accept for filing with respect to an office is two (2) times the minimum number of signatures as required for that office by this section. Working from the first page of a petition that has been serially numbered pursuant to Subsection 1105.2 of this chapter, the Board shall only accept for filing the maximum number of signatures that may be filed pursuant to this section.
The Board shall use the latest official end-of-month count of registered qualified electors published in the District of Columbia Register that was made at least thirty (30) days prior to submission of the signatures for the particular recall measure to determine the minimum number of signatures required for ballot access. Any subsequent changes in the District-wide or ward voter counts, including changes caused by any redistricting, shall not be grounds for challenging the number of signatures needed on a petition as calculated based on five percent (5%) of such published end-of-month count.
D.C. Mun. Regs. tit. 3, r. 3-1103