No vacancy by reason of a voluntary resignation in the office of Councilmember shall occur unless a written resignation which specifies a resignation date is tendered to the City Council. The resignation may be submitted through electronic mail if it originates from the official's electronic mail address and includes also the official's handwritten signature. The resignation shall be effective at the next regular or special meeting of the City Council occurring after the date specified in the written letter of resignation. If a resignation date is not specified, the written resignation shall be deemed to become effective at the first regular or special meeting of the legislative body occurring on or after its receipt.
(KRS 83A.040(7))