Section 28-102.4.1. Existing buildings must comply with the applicable retroactive requirements of the 1968 building code

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Existing  buildings  must  comply  with  the  applicable retroactive requirements of the 1968
  building code including those requiring the installation of fire  safety
  and building safety systems and the filing of verifying reports with the
  department  of  such  installations  by  the  dates specified in section
  27-228.5 of the administrative code or in other applicable provisions of
  such 1968 building code. A violation  of  such  provisions  shall  be  a
  violation of this code.

                    
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