Historic districts, as provided for in this subchapter may from time to time be designated, amended or repealed through the following procedure:
   (A)   An investigation and report describing the significance of the buildings, structures, features, sites or surroundings included in any such proposed district and a description of the boundaries of such district must be prepared by the Historic District Commission and a recommendation thereon made to the Planning Board.
   (B)   The state Department of Cultural Resources, acting through an agent or employee designated by its secretary, shall have made an analysis of and recommendations concerning such report and description of proposed boundaries.  Failure of the department to submit its written analysis and recommendations to the city within 30 calendar days after a written request for such analysis has been mailed to it shall relieve the city of any responsibility for awaiting such analysis, and such body may at any time thereafter take any necessary action to adopt or amend its zoning ordinance.
   (C)   The Board shall review the recommendations and forward its comments and recommendations to the City Council.
   (D)   The City Council shall process historic district zoning and rezoning in the same manner as set forth in § 156.224.
(Ord. O-2003-63, passed 12-16-03; Am. Ord. O-2015-02, passed 1-6-15)