Section 68 in The Tamil Nadu Cinemas (Regulation) Rules, 1957
68.
Each Opening shall be provided with a plate glass screen not less than [5 millimetres] [Substituted by G.O. Ms. No. 3999, Home, dated the 23rd November 1962.] in thickness fixed in position within smoke tight joint:Provided that for openings of less than [130 square centimetres] [Substituted by G.O. Ms. No. 3999, Home, dated the 23rd November 1962.] the thickness of the plate glass screen shall not be less than [3 millimetres] [Substituted by G.O. Ms. No. 3999, Home, dated the 23rd November 1962.]: Provided further that for openings of more than [20 centimetres square] [Substituted by G.O. Ms. No. 3999, Home, dated the 23rd November 1962.]-(i)the glass screens used shall be of armoured plate or wired plate glass;(ii)metal screens shall be provided in addition to the glass screens, and the opening shall be closed with the metal screens when not in use for projections; and(iii)notice shall be put up in the cabin to the effect that the openings shall be closed with the metal screens when the openings are not in use.
