Section 3A(3)(e) in The Punjab Factory Rules, 1952
(e)Plans elevations, cross-sections drawn to a minimum scale of 1 cm. = 12 m. showing means of lighting, ventilation, fire escapes, position of plant and machinery, direction of opening of doors, drinking water points, roof materials, details of urinals, latrines, washing places, facilities for storing and drying of workers clothing, rest-room and lunch-room, canteen and ambulance room; and