(a) The Board of Zoning Appeals shall have the following responsibilities and duties:
(1) Hear and decide appeals where it is alleged there is an error in any order, requirement, decision, interpretation or determination made by the Zoning Administrator.
(2) Authorize such variances from the terms of this Zoning Code as will not be contrary to the public interest, where, owing to the special conditions, a literal enforcement of this Zoning Code will result in unnecessary hardship, and so that the spirit of this Zoning Code shall be observed and substantial justice done. Procedures for variances shall conform to Section 1111.12(a).
(3) Appeals taken on the basis of a decision rendered by the Planning and Zoning Commission on conditional use requests.
(b) The Board of Zoning Appeals may call on the several City departments for assistance in the performance of its duties and it shall be the duty of such departments to render such assistance to the Board of Zoning Appeals as may reasonably be required.