Sec. 8-3.03.  Maps.
   (a)   Authority.  The system for the numbering of premises shall be contained and set forth on the maps entitled “House Numbering,” which maps are on file in the office of the City Clerk, and a copy of each of such maps is on file in the office of the City Engineer.
   (b)   Preparation.  The City Engineer is hereby directed to prepare, from time to time as required, maps for the purpose of determining and displaying the numbering system provided for in subsection (a) of this section, and when such maps are filed with the City Clerk, they shall constitute the numbering system for the portion of the City thereon depicted.
(§§ 8311.1 and 8312, T.O.O.C.)