Section 61 in The Tamil Nadu Cinemas (Regulation) Rules, 1957
61.
(1)All staircases shall be constructed entirely of stone, cement or concrete with fire-resisting roof and ceiling and shall have solid square (as distinguished from spandrel) steps and landing of approved stone or of such other fire-resisting material and construction as may be approved by the licensing authority with treads not less than [27.5 cm] [Substituted by G.O. Ms. No. 3999, Home, dated 23rd November 1962.] wide and with risers not more than [1.5cm] [Substituted by G.O. Ms. No. 3999, Home, dated 23rd November 1962.] high (each lapping at least [2.5 cm] [Substituted by G.O. Ms. No. 3999, Home, dated 23rd November 1962.] over the back edge of the step below it) in flights of not more than 15 or less than 3 steps.(2)The floors of all landing shall be [15 cm] [Substituted by G.O. Ms. No. 3999, Home, dated 23rd November 1962.] thick.(3)Every staircase forming an exit from an upper gallery or tier of the auditorium shall be enclosed on both sided with walls of brick or fire-resisting materials in the storeys through which it passes and no opening shall be made into auditorium except the one required for exit from the gallery or tier which it serves:Provided that staircases leading to the first or lower gallery or tier may be left open on one side in which case the open side shall be provided with extra stout handrails and balusters, but in no case shall staircases be left open on both sides.(4)All enclosed staircases shall have on both sides strong handrails firmly secured to the wall by strong metal brackets about [7.5 cm] [Substituted by G.O. Ms. No. 3999, Home, dated 23rd November 1962.] clear therefrom and about [1 metre] [Substituted by G.O. Ms. No. 3999, Home, dated 23rd November 1962.] above the stairs, but such handrails shall not run on level platforms and landing where the length of such platform or landing exceeds the width of the stairs.(5)Where the flight of steps returns upon itself the new wall shall be chased so as to allow the handrails to turn without projecting over the landing.(6)The treads and risers of steps on each flight shall be of uniform width and height.(7)Each flight of steps shall be properly supported and enclosed to the satisfaction of the licensing authority.(8)No staircases shall have more than two flights of 15 steps without a turn and the width of the landing between such flights shall be at least the same as the width of the staircase.(9)There shall be at least two staircases each not less than(10)Stairs turning at an angle shall have a proper landing without winders being introduced at the turn.(11)There shall be no recesses or projections in the walls of such staircases within [1.75 metres] [Substituted by G.O. Ms. No. 3999, Home, dated 23rd November 1962.] of the floor and any fittings for lighting shall be at least [2 metres] [Substituted by G.O. Ms. No. 3999, Home, dated 23rd November 1962.] above the steps or landing
