Section 411. Ingress and egress

Latest version.

The commissioner shall require that a mine
  operating through either a vertical or inclined shaft, or  a  horizontal
  tunnel, shall have not less than two adequate and accessible outlets, at
  least  one  hundred  and  fifty  feet apart, as a condition precedent to
  employment of any person in the mine. The  subterranean  workings  shall
  connect  such  outlets  with each other. They shall at all times provide
  safe and separate passage between  the  subterranean  workings  and  the
  surface.

                    
                        var val = document.getElementById('citecontent').innerHTML;
                        art.dialog.defaults.title = window.location.href;
                        art.dialog.data('cite', val);
                        art.dialog.data('homeDemoPath', '/Scripts/plus/artDialog/');
                        art.dialog.open('/Scripts/plus/artDialog/citeiframe.html');