The council shall fix the time of its regular meetings, which shall be at least six times per year, and, except as herein provided, the council shall establish its own rules of procedure and such rules as are necessary for the orderly conduct of its business not inconsistent with the laws of the Commonwealth of Virginia.
Three members of the council in the absence of the mayor, or three members of the council in addition to the mayor, as applicable, shall constitute a quorum for the transaction of business at any meeting.
If any member of the council shall be voluntarily absent from three regular meetings of the council consecutively, his or her seat may be deemed vacant by resolution approved by a majority vote (three) of all members elected to the council, and thereupon his or her unexpired term shall be filled according to the provisions of this Charter.