In all buildings and structures containing elevators, there shall be permanently affixed within all elevators a prominent, plainly marked notice approved by the Director to read:
WARNING
ELEVATORS SHALL NOT BE USED IN THE EVENT
OF FIRE. USE MARKED EXIT STAIRWAYS.
ELEVATORS SHALL NOT BE USED IN THE EVENT
OF FIRE. USE MARKED EXIT STAIRWAYS.
(1975 L.M.C., ch. 23, § 1.)