5.13.3.    ESTABLISHMENT
   A.   The overlay is established in accordance with Section 3.5, Rezoning (Change of Zoning) Procedure. Subsequent rezoning shall require Mayor and Council approval and adoption of a rezoning ordinance for an affected area.
   B.   Each UOD shall be in compliance with the adopted and applicable sub-regional, area, and neighborhood plans.
   C.   Upon establishment, the UOD shall be identified on the as a shaded area. When the UOD is effectuated on a specific property(ies), the prefix “U” followed by a sequential number and the assigned zoning designation, e.g., C-3 becomes U1C-3, shall be identified on the . The UOD may also be given a descriptive name associated with the subject area, e.g., Downtown District.