Section 21(vii) in The U.P. Cinematograph Rules, 1951
(vii)The projection room shall be at least eight feet in height if one machine is to operated, the space shall not less than 489 square feet and an additional 24 square feet shall be provided for each additional machine to be operated. The width of the room shall be such as to provide sufficient space and easy passages for operators when passing behind the machine.
