§ 171.050 LIGHTING REQUIREMENTS.
   (A)   General. All spaces shall be provided with natural or artificial light as to permit the maintenance of sanitary conditions, and the safe use of the space, appliances, equipment, and fixtures.
   (B)   Common halls and stairways. Every common hall and stairway, including exterior stairways, of a premises shall be provided with natural or artificial light with an average illumination equivalent to not less than three foot-candles over the area at a height of 30 inches above the floor level and one foot-candle at landings and treads.
   (C)   Habitable areas. All habitable areas in a building shall be provided with natural or artificial light with an average illumination equivalent to not less than six foot-candles over the area of the room at a height of 30 inches above the floor level.
   (D)   Nonhabitable areas. Every hall, laundry room, furnace room, interior stairwell in a building, except as set forth in division (B) above, shall be provided with natural or artificial light with an average illumination equivalent to not less than three foot-candles over the area at a height of 30 inches above the floor level.
(2004 Code, § 141-15) (Ord. 70, passed 9-29-1988)