Section 53.21. Minimum exits

(a) There shall be a minimum of two exits reasonably remote from each other. At least 50% of required exits shall be exit discharge doors to the outside, stair towers or ramps.

(b) Basements used only for storage or mechanical equipment without any permanent occupancy shall have a minimum of two exit access paths except that the Department may permit a single exit access for basements of less than 1,000 square feet used only for storage or mechanical equipment without any permanent occupancy.

(c) Mezzanine levels shall have a minimum of two exit access paths except that the Department may permit a single exit access from mezzanines less than 1,000 square feet or mezzanines used exclusively for storage or mechanical equipment without a permanent occupancy.