The Zoning Committee shall meet at the call of the Chairman upon determination of need, as advised by the Zoning Administrator and at such other times as the Committee may require to discharge its duties and responsibilities in the conduct of public hearings and in upholding the provisions of this Ordinance, provided, however, that the Zoning Committee shall meet at least once each month, such meeting to be held on a regularly established schedule, time, and place open to the public.