Nothing shall be hung from or affixed to any sprinkler heads or piping.  Any rigged display or banner must have 18” clearance from sprinkler heads. Any rigged banner or display must also maintain at least 8’ of clearance from the floor to the bottom of the banner/display, OR it must extend all the way to the floor. All exit doors shall be in an operable condition at all times.  Exit signs shall not be obstructed in any manner.  All entrances, exits, aisles, stairways, lobbies, passageways, and fire and life safety devices shall be unobstructed at all times.  Booth construction shall be substantial and fixed in position in a specified area for the duration of the show.  Easels, signs, etc. shall not be placed beyond booth area into aisles.