§ 17.45 FIRE RESISTANCE RATINGS.
   (A)   Fire resistance rated assemblies. The required fire resistance rating of fire-resistance rated walls, fire stops, shaft enclosures, partitions and floors shall be maintained.
   (B)   Opening protectives. Required opening protectives shall be maintained in an operative condition. All fire and smoke stop doors shall be maintained in operable condition. Fire doors and smoke barrier doors shall not be blocked or obstructed or otherwise made inoperable.
(Adopted 10-11-2016)