Except as provided in this section, the operator of an underground coal mine shall not employ, or permit any person to work therein, unless there are at least two openings to every seam worked in such mine, separated by natural strata of not less than one hundred feet in breadth at any point, by which distinct means of ingress and egress are always available to the persons therein employed. Such openings need not belong to the same mine so long as the persons employed therein have safe, ready, and available means of ingress and egress, by not less than two openings; provided that no air shaft with a ventilating furnace at the bottom shall be designated or used as a means of ingress or egress. This section does not apply to:
No operator of a mine shall refuse or neglect to comply with this section.
R.C. §1563.14