The Zoning Committee shall be governed by the rules for the conduct of its zoning affairs as adopted by the City Planning Commission. Officers shall consist of a Chairman responsible for the conduct of all Zoning Committee meeting and hearings; a Vice Chairman, who shall act for the Chairman in his absence, and a Recording Secretary. A quorum of four members is necessary for the conduct of Committee business. The Committee may secure the services of a Court Reporter to assist a recording secretary in obtaining complete and accurate minutes of Committee proceedings, and/or may authorize use of a tape recorder. To preserve order during conduct of meetings and public hearings, the Zoning Administrator shall act in the capacity of Sergeant at Arms.