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(a) General. Artificial light shall be provided that is adequate to provide an average illumination of 10 footcandles (107 lux) over the area of the room at a height of 30 inches above the floor.
(b) Stairway Illumination. (i) All stairways within dwelling units and exterior stairways serving a dwelling unit shall have an illumination level on tread runs of 1 footcandle (11 lux). (ii) The control for activation of the required stairway lighting within a dwelling unit shall be operable from the top and bottom of each stairway without traversing any step of the stair. The illumination of an exterior stairway serving a dwelling unit shall be controlled from inside the dwelling unit, unless continuously illuminated or automatically activated.
(Added Coun. J. 4-29-98, p. 66679, § 1; Amend Coun. J. 9-6-17, p. 55278, Art. II, § 45)